What is a Monitor? Definition and Full Discussion

A monitor is an important tool, but many people aren’t aware of how to use the functions or features on their monitors.

 Using your monitor properly is important, but it’s almost impossible to use all of the functions. 

“What is a Monitor?” This blog post will help you learn how to use your monitor. We’ll cover everything you need to know about monitors, including what monitors are, how they’re used, and how they differ from TVs.

What is monitor simple definition?

A monitor is a device used to display images, text, video, and graphics information generated by a connected computer. It is most commonly used in conjunction with a computer, but can also be used with other electronics. Monitors can be divided into categories such as CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), LED (Light Emitting Diode), and OLED (Organic Light-Emitting Diode).

 The most basic definition of a monitor is a device that displays information from a connected computer or other devices. The main difference between a monitor and a computer screen is that a monitor is an external device, while a computer screen is integrated into the device. This means that a monitor can be used with multiple devices, while a computer screen is limited to a single device.

The first computer monitor was introduced in 1973 as part of the Xerox Alto computer system. The original monitors were made up of a CRT, which was a large and heavy device that took up a lot of desk space. Today, most monitors are made up of flat-panel display technology, which is usually backlit with LEDs. These modern monitors take up much less space than the old CRT monitors and provide much sharper images.

It is to be expected that monitors will continue to evolve in the future and show improvements that were unthinkable in the past due to the constant innovation process that we experience.

What is a monitor of a computer?

A monitor is a device of a computer that is used to display information. It is the main interface between the user and the computer, as it is used to show the output of the data processing center that is managed by the user. This output is usually displayed in the form of text, images, and videos.

The first monitor of computers appeared in the 1970s when IBM released its first cathode ray tube (CRT) monitors. These monitors were single-color and could only display text. Over time, these CRT monitors were replaced by more advanced LCD monitors, which could display color and graphics. In addition, the size of monitors and their aspect ratio also changed, with larger monitors offering a wider field of view and a more pleasant viewing experience.

The development of graphics cards made it possible to further improve the graphics displayed on the monitors. The most commonly used graphics cards are CGA, EGA, VGA, and SVGA, all of which provide different levels of resolution and image quality.

It is also known as a visual display unit or a video display unit. Monitors vary in size, aspect ratio, and resolution. The size of a monitor is measured from one of its vertices to the opposite, and the aspect ratio accounts for the relationship between the height and the width of the monitor. The resolution of a monitor determines how detailed the image it displays can be.

Each pixel on a monitor is composed of three sub-pixels of different colors: green, blue, and red. Depending on the monitor, these sub-pixels are organized in different ways, such as in triangles or lines.

Other technical aspects to consider when talking about a monitor include response time or latency, which measures the time it takes for a pixel to go from an active state to an inactive one; the point size, which is nothing other than the space between two phosphors of a pixel and which accounts for the sharpness of the monitor; the functional area or area used for the image; the angle of view, or the angle from which can view the picture without blurring; and the refresh rate, which is the number of times a monitor refreshes its image per second.

What is a monitor used for?

It is used to view text, graphics, videos, and other media created by the computer. Monitors come in various sizes and resolutions and can be used to display images in either grayscale or color. The size of the monitor also affects the amount of information that can be displayed on the screen.

Monitors are used for a variety of purposes, including gaming, watching movies, creating art, and for general computing tasks like web browsing, word processing, and spreadsheet work.

What are a monitor’s characteristics?

A monitor has several characteristics. Resolution is the number of pixels that make up the image, and higher resolutions have clearer images. Refresh rate is the number of times per second the image is redrawn, with higher refresh rates producing smoother images.

Response time is the time it takes for a pixel to change from one color to another and is measured in milliseconds. Higher response times can produce more ghosting or blurring of images. Brightness is measured in candelas per square meter, with higher numbers producing brighter images. Finally, contrast ratio is the difference between the darkest black and brightest white displayed on the screen.

Today’s monitors come in a variety of sizes and shapes, from large desktop monitors to small laptop displays. They can also be curved, making them more immersive and offering a wider field of view. Additionally, some monitors now come with advanced features such as adaptive sync, which helps to reduce screen tearing and stuttering.

How does a monitor work?

A computer monitor is an output device that is used to display information from a computer. The monitor is connected to the computer using a Video Graphics Array (VGA), Digital Visual Interface (DVI), or High-Definition Multimedia Interface (HDMI) cable. The computer sends signals to the monitor, which then displays the information in a graphical format.

What is a Monitor, How does a monitor work

  How does a monitor work? Monitors use a combination of liquid crystal display (LCD) technology and light-emitting diode (LED) technology to display images. The LCD panel is the part of the monitor that is responsible for displaying the image. It consists of millions of tiny cells that are filled with a liquid crystal material.

When an electric current is applied to these cells, they become activated and can change the color of the light that is emitted from the cell. This is how an image is created on the monitor. The LED backlight is the part of the monitor that provides the light source for the LCD panel. The LED backlight is made up of small light-emitting diodes (LEDs) that provide a bright, even light source for the LCD panel.

 In addition to the LCD panel and LED backlight, monitors also contain other components such as the power supply, video card, and control circuits. The power supply provides the power to the monitor, while the video card provides the signals to the LCD panel. The control circuits are responsible for adjusting the brightness and contrast of the image, as well as other settings such as color temperature.

A computer monitor is an output device that is used to display information from a computer. It consists of an LCD panel, LED backlight, power supply, video card, and control circuits. Together, these components work together to create the image that we see on the monitor.

At present, the computer is used for various work and home branches for various purposes such as:

  • Data storage
  • Repetitive computations, data processing, and calculations
  • Drafting and transcription of documents
  • Handling of machinery and other devices
  • Video game
  • Viewing images and videos
  • One of the most relevant uses is using the computer as a communication channel through the web.

Monitor history

The history of the monitor is a long and fascinating one, beginning with Honrad Zuse’s invention of the first computer in 1936. However, it was William Crookes who first invented the monitor in 1878, which was initially used for the purpose of displaying information.

As time passed, the monitor began to be used for more than just displaying information, and over the years, the monitor has seen a number of advancements and innovations. 

 In the 1950s, the teletypewriter was introduced, which allowed for computer communication by logging in and passing data. This was an important milestone in the development of the monitor and its use in computers. The 1970s saw the introduction of the CRT monitor, which was the first monitor to display color. This allowed for a much more vivid and colorful viewing experience and was the precursor to the modern monitors of today.

 Since then, many other advances have been made to the monitor, such as the introduction of LCD and LED monitors, which offer more vibrant colors and a much higher resolution, as well as touch screen monitors, which allow for a more interactive experience.

The history of the monitor is an interesting one and has seen many changes over the years. From the humble beginnings of William Crookes’ invention to the modern monitors of today, the monitor has come a long way and is an integral part of the modern computer.

Types of monitor

Monitor technology has come a long way since the bulky CRT monitors of the past. Today, the most common type of monitor is the LCD or LED monitor, which uses liquid crystals or light-emitting diodes to display images.

LCD monitors are typically flat and thin, making them ideal for gaming and other activities that require a lot of screen space.

OLED monitors offer higher contrast, faster response time, and wider viewing angles. Curved monitors create an immersive experience and can help reduce eye strain. Touchscreen monitors are perfect for multitasking, while ultrawide monitors provide an even wider field of view. Regardless of your needs, there is a monitor type that can help you get the most out of your experience.

What are the 3 types of monitor?

The three types of monitors are LCD, LED, and OLED. LCD (Liquid Crystal Display) monitors are the most common type and have been around since the 1980s. They deliver a sharp image, with good colors and contrast, but they use more power than other types of monitors.

LED (Light Emitting Diode) monitors are a newer type of monitor and offer improved brightness and color accuracy compared to LCDs. OLED (Organic Light Emitting Diode) monitors are the latest type of monitor and offer the best image quality, with high contrast and excellent colors. They also use less power than LCD and LED monitors but are more expensive.

What are the 2 types of monitor?

The two main types of computer monitors are LCD and LED monitors. LCD (Liquid Crystal Display) monitors are the most common type, and are typically lower cost than LED (Light Emitting Diode) monitors. LCD monitors are made up of liquid crystals that allow light to pass through, while LED monitors use a backlight to provide a brighter, clearer image.

LCD monitors typically have a lower response time and less vivid colors than LED monitors, while LED monitors tend to be more power-efficient and have a wider range of viewing angles.

Types of monitor for primary school

LCD monitors are generally the most popular choice for primary school classrooms as they are lightweight, energy-efficient, and have good resolution for displaying visuals. LED monitors are also a great option as they are brighter, thinner, and more energy-efficient than their LCD counterparts.

Additionally, touch-screen monitors are great for interactive learning, providing a more hands-on approach to education. Finally, interactive whiteboards are a great choice for classrooms as they are interactive, allowing students to use their fingers to draw, write, and manipulate objects on the board. Each of these types of monitors offers unique advantages, so it is important to research and decide which monitor is best suited for your primary school’s needs.

Function of monitor

The monitor is the most important part of any computer system. It is the device used to view and interact with the computer. The function of a monitor is to display the output from the computer in a visual format. This includes text, images, and other multimedia elements.

Monitors come in various sizes and resolutions, allowing users to customize their viewing experience. Monitors also provide audio output, allowing users to listen to music, videos, and other audio files. Monitors are typically connected to the computer via a video cable, which carries the signal from the computer to the monitor.

Some of the functions of the monitor are discussed below:

Resolution on monitor

Resolution on a monitor refers to the number of pixels that a display device can show. It is determined by the number of columns and rows of pixels that the monitor can display. A higher resolution results in sharper images, more detailed text, and a clearer overall display.

The most common resolution for modern monitors is 1920 x 1080, also known as Full HD, which provides great picture quality. Other common resolutions are 4K UHD (3840 x 2160) and QHD (2560 x 1440). The resolution of the monitor affects how the content is viewed, so it is important to choose the resolution that best fits your needs.

Aspect ratio

The aspect ratio of a monitor is the ratio of the width to the height of the display. Common aspect ratios are 16:9, 4:3, and 21:9, which are the ratios of width to height for widescreen, standard, and ultra-widescreen monitors, respectively.

The aspect ratio affects the size of the on-screen image, and thus how much of the display is used. Widescreen monitors are better for viewing movies, while standard aspect ratios are better for general computing tasks.

Refresh Rate (FPS) and Hertz

The refresh rate, measured in frames per second (FPS), is a measure of how often the image on the monitor is updated. A higher refresh rate provides smoother motion, which is important for gaming and video editing.

The refresh rate is measured in Hertz (Hz), which is the number of frames per second that a monitor can display. Most monitors have a refresh rate of 60 Hz, meaning that the image is refreshed 60 times per second. Higher refresh rates are available on gaming monitors and some higher-end monitors, which can reach up to 240 Hz.

Monitor response time

The response time of a monitor is the amount of time it takes for the monitor to display a change in the picture. It is measured in milliseconds (ms) and is affected by the type of monitor, the refresh rate, and the resolution. Generally, a lower response time will result in a smoother picture.

A response time of 5 ms or less is considered good, while a response time of 10 ms or more may cause noticeable image lag or ghosting. Monitors with a response time of 1 ms or less are often advertised as being “gaming monitors”.

Color space

The color space of a monitor is the range of colors it can display. It is determined by the type of display technology being used and the capabilities of the graphics card.

Color space

Different color spaces offer different levels of accuracy when it comes to displaying colors. For example, sRGB is the most widely used color space and provides good results for most applications, while Adobe RGB covers a wider range of colors and is more suitable for professional image editing. With the right monitor, you can enjoy vibrant and accurate colors that are true to life.


The sRGB of a monitor is a color space that is used to accurately display colors on screens. It is the most commonly used color space for monitors, and is based on a standard established by the International Electrotechnical Commission (IEC).

This color space is capable of displaying a wide range of colors, and it is designed to have a relatively linear response to color changes. This means that colors are displayed accurately and consistently across different types of monitors. The sRGB of a monitor also helps to ensure that colors are displayed correctly when images are transferred from one device to another.

Adobe RGB

The Adobe RGB of a monitor is a specialized color space that is designed to be able to accurately display a wider range of colors than a standard sRGB monitor. It is typically used by photographers and graphic designers to ensure that the colors they are viewing on the monitor are accurate and consistent with what will actually be printed.

The Adobe RGB of the monitor allows for greater accuracy of color reproduction and better fidelity of colors when compared to sRGB, which makes it the ideal choice for professional image editing and digital artwork.

ProPhoto RGB

The ProPhoto RGB of a monitor is a color space that is used to accurately display color on the monitor. It uses a wider gamut of colors than sRGB, allowing for more vivid and saturated colors. The ProPhoto RGB also offers a more accurate representation of colors, so that when images are edited on the monitor they look as close to the original image as possible.

This makes it ideal for professional photographers and graphic designers who need a reliable and accurate way to view and edit their images.

Color Depth

The color depth of a monitor is a measure of how many distinct colors a monitor can display. This is also known as bit depth or color resolution. A monitor with a higher color depth will be able to display more distinct colors, resulting in more vibrant and accurate images.

This is especially important for those working in graphics and digital art, as they require a higher color depth to accurately reproduce their work. A higher color depth can also lead to more realistic gaming experiences and smoother transitions between colors.

Brightness and contrast on the monitor

The Brightness and Contrast of a monitor are two of the most important settings for obtaining optimal image quality. Brightness refers to the overall luminance of the image and is adjusted by setting the black level of the monitor.

Contrast is the difference between the darkest and the lightest colors and is adjusted by setting the white level of the monitor. By adjusting the Brightness and Contrast, you can ensure that the colors of the images on the monitor appear as they should and that they are not too dark or too light. Both settings are important for obtaining the best image quality and should be adjusted as needed.

Parts of a monitor

The monitor is an essential component of any computer system, as it is the device used to display the information that is being processed by the computer. There are many different components that comprise a monitor, including the display panel, backlight, and control board.

Understanding the different parts of a monitor can help you make a better-informed decision when purchasing or repairing one. In this section, we will discuss the various parts of a monitor and what they do.

Generally speaking, a computer monitor is composed of:

  1. The casing: it is the external part that encloses the entire monitor. In LCD monitors, the most common color is black. On CRT screens, they are commonly white.
  2. Data connector: is the cable that goes from the computer monitor to the computer or CPU. Without it, it could display none of the images on the monitor. Some monitors dispense with the cable with Bluetooth technology.
  3. Button Panel: This is where the user can adjust the brightness and contrast of the screen. The position of the screen is also adjusted.
  4. Power button: is the most visible. It works to turn the monitor on and off. Commonly when pressed, it highlights in blue on the screen, indicating that the monitor is on.
  5. Electrical power supply: it is the cable that connects to the computer screen with electrical energy.
  6. The visualization instrument: it is the area where all the images and programs are displayed and observed.
  7. Support: Located at the bottom that keeps the monitor stable and secure.
  8. Monitor arm: A monitor arm is an adjustable device designed to securely attach a computer monitor to a desk, wall, or another flat surface.
  9. Monitor screen: A monitor screen is a display device used in computers and other electronic devices.
  10. Monitor light bar: A monitor light bar is a thin strip of light that is often found at the bottom of a monitor.

Panels of a Monitor

Monitor panels are the main component of any display device and come in a variety of configurations and sizes. To this day, all the panels that we are going to look at are LCD (Liquid Crystal Display) and come in three main branches:

  1. TN (Twisted Neumatic)
  2. VA (Vertical Alignment)
  3. IPS (In-Plane Switching).

Each of these have their own distinctive characteristics, depending on their intended purpose.

TN (Twisted Neumatic): LCD panels are the oldest type of LCD and are typically the cheapest. They offer the fastest response time, making them ideal for gaming, but have limited viewing angles, making them less suitable for editing work.

VA (Vertical Alignment): LCD panels are a step up from TN, offering better picture quality and wider viewing angles. They also have better contrast ratios and deeper blacks, making them a good choice for editing work.

 IPS (In-Plane Switching): LCD panels offer the best viewing angles and the best color accuracy. They also have the lowest response times, making them ideal for editing and other color-critical tasks. However, they are more expensive than TN and VA panels.

 Within the LCD panels, there are also different types of lighting. Edge LED is the most widely used and cheapest, where the light reaches the pixels from the edge through a diffuser panel. Full LED lighting, on the other hand, has all the LEDs on the screen fully backlit. Local Dimming is an advanced lighting technique, where the backlighting of the LEDs is dynamic and selectively fades or gains intensity to optimize contrast.

OLED, AMOLED, and P-OLED are also available, which are referred to as “organic” monitors. They have pixels that can be completely dynamically turned off to emphasize the effect and color achieved with Local Dimming technology. As a general rule, they are extremely expensive.

Monitor connections

A monitor, or computer screen, is an output peripheral that visually displays the data processed by the computer. It is connected to the computer through a graphics card, with the most common connection systems being VGA, DVI, HDMI and DisplayPort.

It is important to make sure the interface of the monitor and the graphics card are compatible before purchasing them, as not all monitors will work with all graphics cards, and vice versa.

Monitor connections
Monitor connections

  Monitor connections are the cables and ports used to connect a monitor to a computer. VGA is the most common type of connection, as it has been around since the 1980s and is still widely used today. DVI is another popular connection and is used to transmit higher-quality data. HDMI and DisplayPort are a newer technology that offers better quality and performance.

Types of Monitor Connections

The most common monitor connection types are VGA, DVI, HDMI, and DisplayPort. VGA is the oldest type of connection, but it is still widely used and provides good image quality.

It is often found on older monitors and laptops. DVI is an improved version of VGA, providing better image quality and support for higher resolutions. HDMI is a newer type of connection, which offers better image quality, support for high resolutions, and digital audio.

DisplayPort is the newest type of connection, providing the best image quality and support for the highest resolutions.


The VGA connection is an analog connection that is used to connect devices such as computers, laptops, monitors, projectors, and TVs. It is an older type of connection that has been around since 1987, but it is still widely used and functional for most computers.

VGA is a standard developed by IBM and it offers an analog connection that only transmits video, meaning that audio must be transmitted through another interface. This connection is becoming less popular as newer interfaces allow for higher-resolution images and the ability to transmit audio on the same connection.

The VGA connection typically has a resolution of 640 × 480 pixels, sometimes referred to as “VGA resolution”. It also has a mini variant of the VGA interface. The connector for the VGA connection is a 15-pin D-sub connector and the cable used for the connection is made up of three coaxial cables with a ferrite core and a shield.

The main purpose of the ferrite core is to reduce interference from other electronic devices. VGA is a widely used connection type and is one of the most common methods for connecting a computer to a monitor.


The DVI (Digital Visual Interface) is a type of connection designed to transmit digital video signals between a computer and a display device such as a monitor or a television.

It is the successor to the VGA connection and provides a much higher image quality since it transmits data in a digital format rather than an analog one. Depending on the graphics card installed in the computer, it can be used to transmit Full HD images of 1920 × 1080 pixels.

DVI is the most common type of connection today and nearly all modern TFT displays come with a DVI port as well as a VGA port. The DVI connection is also available in mini DVI format, which is smaller and more compact and is often used on laptop computers. This connection is ideal for digital video applications such as gaming and high-definition video playback.

The DVI connection exists in 3 versions, which differ at first glance in the number of contacts or pins:

  • DVI-D: transmits digital-only.
  • DVI-A: only transmits analog.
  • DVI-I: allows both digital and analog.


HDMI is a type of connection that is becoming more popular today, with an increasing presence in computers and many other electronic devices. HDMI stands for High Definition Multimedia Interface, and it not only supports the transmission of high-resolution images but also high-quality audio.

HDMI is a digital connection, so it is able to process a higher amount of data than analog connections. This makes it a more efficient and reliable connection for modern devices. HDMI can also be used to connect a computer to a monitor, allowing for higher-resolution images and better audio.

HDMI also comes in a smaller version, known as Mini HDMI. This is frequently used in smaller devices such as tablets or digital monitors, and cameras. It is also widely used in modern televisions, allowing for better image quality in the home.

HDMI is becoming increasingly popular as a connection type, and it is expected that it will continue to grow in popularity in the near future.


DisplayPort is a port for graphics cards created by VESA and rival HDMI, which allows transferring high-resolution video and audio.

 A DisplayPort monitor connection will enable you to connect multiple monitors simultaneously but it can also transfer both image and audio signals and additional information for example for touch screens.

 A reduced version of this connector called Mini DisplayPort is widely used for graphic cards with multiple simultaneous outputs.

USB Ports

Modern computer monitors come with several USB ports, which can be used to connect a variety of peripherals such as the mouse and keyboard. Having the latest USB version ports on the monitor is beneficial for data transmission speed, as it eliminates any potential data bottlenecks.

USB 3.0 and 3.1 ports are the latest versions, and offer the highest data transfer speeds currently available. With these ports, users can transfer data at up to 10 Gbps, making them suitable for use with high-resolution displays and devices that require high-speed data transfer.

Having USB ports on the monitor also eliminates the need to purchase a separate USB hub, saving both time and money.

3.5 jack for headphones and microphone

Having a monitor that includes an audio input and output port is incredibly useful and can improve our quality of life in many ways. For example, it allows us to connect our headphones directly to the monitor, which is especially useful if our tower is located in a place where it is difficult to reach, or if the cable of our headphones is too short.

Additionally, the 3.5 jack for headphones and microphone allows us to connect our microphone directly to the monitor, which is great for video conferencing, gaming, or other audio-related activities. This extra feature can save us time and effort in having to connect our devices separately and can also improve the overall sound quality of our audio devices. All in all, having a monitor with an audio input and output port is a great way to make our lives easier and more enjoyable.

Classification according to monitor standards

Monitor classification is the process of categorizing monitors according to different standards. Monitors can be divided into various sections such as LED, LCD, Plasma Screen Monitors, MDA monitors, etc. based on their value and characteristics.

Each type of monitor has its own advantages and disadvantages, and each has been evolving with the aim of providing better definitions, quality images, and more benefits. Classification of monitors according to monitor standards is important to ensure that the right type of monitor is chosen for the right purpose.

MDA monitors 

The technology of MDA monitors emerged in 1981, when the Monochrome Display Adapter (MDA) was introduced by IBM, alongside the Color Graphics Adapter (CGA).

MDA Monitor
MDA Monitor

These popularly known Monochrome Monitors only offered text and did not incorporate a graphic mode. The MDA monitor was a great improvement from the previous Teletype and dot-matrix printers, as it allowed for a wider range of characters and a higher resolution.

The MDA monitor was used for a variety of tasks, such as accounting and data entry. Despite the limited graphics capabilities, the MDA monitor was considered to be an important step forward in computer technology, as it provided the first opportunity for the visual display of text and for people to interact with computers.


  • No graphics mode.
  • Resolution 720_350 pixels.
  • Monochrome text support.
  • It does not support graphics or colors.
  • The graphics card has 4 KB video memory.
  • Supports underlining, bold, italic, normal, and invisibility for texts.

CGA Monitor 

The CGA monitor, also known as the Color Graphics Adapter or Graphics Adapter Color, was a groundbreaking monitor released in 1981.

CGA Monitor
CGA Monitor

Developed in conjunction with an IBM standard, it was the first graphics card to feature a color system. Despite this, PC buyers at the time still opted for the MDA monitors, which were released at the same time, leading to competition between the two types of monitors.

CGA monitors revolutionized the way people interacted with computers, as it was the first monitor to make colored graphics available. This allowed for more complex graphics and visuals to be displayed, enabling people to do more with their computers than ever before.


  • Resolutions 160_200, 320 × 200, 640 × 200 pixels.
  • Color chart support.
  • Designed primarily for Computer games.
  • The graphics card contained 16 KB of video memory.

EGA Monitor 

The Enhanced Graphics Adapter (EGA) monitor was developed by IBM in 1984 and provided a much-improved graphics display compared to the earlier Color Graphics Adapter (CGA).

EGA Monitor
EGA Monitor

It allowed for a greater number of colors and a higher resolution, providing a sharper image than its predecessor. The EGA monitor was eventually replaced by a monitor with even better features and performance, but it was the first step toward the modern computer graphics we have today.

It was the first to provide such a wide array of colors and resolutions, paving the way for better and more advanced graphics displays.


  • 640_350 pixel resolution.
  • Support for 16 colors.
  • The standard EGA graphics card carried 64 KB of video memory.

VGA Monitor 

The VGA monitor, which stands for Video Graphics Array, was launched by IBM in 1987 and revolutionized the world of computers and monitors.

VGA Monitor
VGA Monitor

It brought with it a new level of quality and clarity, far surpassing the older monitors in terms of resolution and graphics. The VGA monitor was the first of its kind to feature mode 256 with higher resolutions, making it a major step forward in the field of graphic cards.

This also meant that the older monitors were becoming obsolete, as they were not able to support the technology of the VGA monitor. The VGA monitor was an important development in computer history and helped pave the way for the modern monitors seen today.


  • Support 720 × 400 pixels in text mode.
  • Support 640 × 480 pixels in graphic mode with 16 colors.
  • 320 × 200 pixel support in graphics mode with 256 colors.
  • Standard VGA graphics cards incorporated 256 KB of video memory.

SVGA Monitor 

SVGA, or Super Video Graphics Array, is a monitor type and standard released in 1989 that provides higher resolutions than its predecessor, VGA.

SVGA monitor
SVGA monitor

This was done to eliminate incompatibilities and create new enhancements. Today, SVGA monitors are common, providing resolutions up to 800×600 pixels. Furthermore, newer versions of this standard, such as XGA and SXGA, provide resolutions of up to 1280×1024 and 1400×1050, respectively.

This makes SVGA monitors capable of displaying high-resolution images and videos with impressive clarity, making them a great choice for gaming and graphic design.


  • 800 × 600 resolution, 1024_768 pixels and higher.
  • For this new monitor, different graphics cards were developed, such as ATI, GeForce, NVIDIA, among others.

What features should the best monitor have?

When looking for the best monitor, there are certain features we should pay attention to. The size of the screen should be at least 15 inches, but if you are running graphic or technical design programs, the recommended size is 17, 19 or 21 inches.

The type of tube to look for depends on the manufacturer, with Trinitron tubes being exclusive to Sony, and “shadow mask” tubes being the most common. We should also pay attention to the resolution and frequency, with a higher resolution and frequency giving us better visual performance.

The dot pitch or dot size should be 0.28 mm. or less. All of these features should be taken into consideration when looking for the best monitor to ensure good visual performance.

Other aspects to consider

Once we have seen the most important factors for a monitor such as resolutions, aspect ratio, formats, and response time, we can focus on others not so crucial but also relevant such as:

Monitor size

When choosing a monitor or buying a monitor, size is an important factor to consider. Generally, larger monitors have higher resolutions and offer better image quality. However, that doesn’t mean that a 27” screen is automatically 4K or Full HD. It’s important to assess whether having a larger screen is worth sacrificing image quality.

If the monitor is to be used at a certain distance, size is more important than resolution. On the other hand, if watching movies or games in high definition is desired, sacrificing part of the screen size in exchange for higher image quality may be worthwhile. Ultimately, the best monitor size depends on the user’s preferences and needs.


Ergonomics is an important factor when it comes to choosing the best monitor. It is a commonly forgotten aspect that can make a huge difference when it comes to comfort and productivity. Look for a monitor that can be raised, turned or tilted on its axis, and adjusted to the height of your table and seat.

This way, you can properly align your screen to the correct height, reducing neck strain and fatigue. Additionally, some monitors have handles on the back that allow you to mount it to a wall, so you can find the perfect viewing angle. With the right ergonomic monitor, you can be sure that you will be comfortable and productive for many hours.

Blue light filter

Blue light filters are the best monitors to have because of the adverse effects that blue light from monitors can have on our eyes and sleep rhythms. In recent years, we have become increasingly aware of the potential damage that blue light can cause to our eyes and our internal clock.

To protect our eyes and sleep cycles, many monitors have built-in filters that reduce the amount of blue light that reaches our eyes. These filters help to reduce the strain on our eyes and prevent the disruption of our sleep patterns.

They also allow us to enjoy the benefits of viewing a computer monitor while protecting our eyes and our circadian rhythm.


Speakers are often preferred over integrated monitors because of the superior sound quality they can provide. When it comes to high-end audio, a dedicated set of speakers can make all the difference. Additionally, having a separate set of speakers allows a user to customize the sound as needed; they can adjust the volume, add bass and treble, and switch between different sound profiles.

Furthermore, having a separate set of speakers keeps the cost of the monitor down, as having them built-in adds a significant increase in price. With separate speakers, users can save money while still enjoying great sound quality.

For those who need a good monitor but do not have the space or sound as a priority, having a monitor without speakers can be a great option.

Operation of a monitor

The operation of a monitor based on the concept of the Cathode Ray Tube (CRT) is relatively simple. The CRT is a vacuum tube that houses an electron gun and a phosphorescent screen. The electron gun is composed of electron cannons that emit a beam of electrons that can be precisely controlled in position and intensity.

This beam of electrons periodically stimulates the screen, which is internally coated with phosphor, to make up the points that will make up the characters (letters, numbers, and signs).

In color monitors, the screen is usually coated with a layer of red, green, and blue tri-phosphor which is stimulated by three electron cannons (one for each color). In order to keep images stable and prevent flickering, the electron beams must pass over the phosphorescent layer with a frequency greater than 65 Hertz (65 times per second). This is called the “refresh rate” and it depends on the graphics card of the computer.

Not all monitors are computer monitors

Not all monitors are computer monitors, and this is an important differentiation. Monitors are peripheral devices that are connected to the computer and are used for visual output. TVs, on the other hand, are designed to receive signals from an antenna and do not necessarily need video inputs.

TVs also have their panels and features optimized for viewing television content, which can make connecting a computer to a TV difficult. Computer monitors, on the other hand, do not have an antenna input and instead have video inputs such as D-Sub (VGA), DVI, HDMI, DisplayPort or USB-C.

Additionally, all TVs have built-in speakers, while computer monitors are not always equipped with speakers, as it depends on the manufacturer. Lastly, laptop screens work slightly differently as they are integrated into the computer and do not have video inputs or outputs.

Your tablet can also be a monitor 

Your tablet can also be a monitor, either through streaming or by connecting it to video output. This is a great option if you need a small additional screen for your configuration. To use your tablet as a monitor, you will need to use special applications, but the process is fairly straightforward.

For example, you can use AirPlay, Chromecast, or Miracast to stream your laptop’s display to your tablet. Alternatively, you can buy a cable that will connect your laptop to your tablet, allowing you to use your tablet as a second monitor. Either way, your tablet can be a great additional monitor for your setup.

Frequently Asked Questions about Monitor

Who Invented the Computer Monitor?

The invention of the computer monitor can be traced back to 1878 when William Crookes first designed a cathode ray tube. However, it wasn’t until 1897 that the first computer monitor tests were conducted, thanks to the work of Karl Ferdinand.

Ferdinand devised a way to use a cathode ray tube to display images, and from this point, the technology of the computer monitor began to develop. Over the past century, the development of the computer monitor has advanced drastically, with larger and higher resolution screens, as well as the use of liquid crystal display and OLED technology.

Now, the computer monitor is an essential part of the computing experience and has an integral role in modern life.

What material is the computer monitor made of?

Computer monitors are typically made of a combination of lead, phosphor, metal, and plastic. Lead is used to produce the glass front screen and the phosphor creates the image on the screen. Metal is used to construct the frame of the monitor and plastic is used for the back casing.

What material is the computer monitor made of? Generally, it is made of a combination of lead, phosphor, metal, and plastic, although the exact components may vary depending on the type of monitor.

What is the monitor for?

A monitor is a display device used for viewing, interacting with, and manipulating content on a computer. It is an essential part of the computer system and allows users to interact with the computer, access the internet, view videos, and play games.

Monitors come in a variety of sizes, ranging from small to large, and have different resolutions, refresh rates, and panel types, so users can choose the monitor that best suits their needs. The most common type of monitor is the LCD monitor, which is light, energy-efficient, and has many features.

Monitors are also used for gaming and graphic design, as they provide a higher level of detail, more accurate colors, and faster response times than other types of displays.

What are a monitor’s main features?

Several features define what a monitor looks like:

  • Luminance: measured in cd/m² or Nits, it is a measure of the intensity of light emitted by the monitor. It is also known as “Brillo”.
  • Color depth: measured in bits, it is the amount of color that the monitor can display.
  • Color spectrum: these are the different color spaces for which these have been calibrated, such as sRGB or DCI-P3, to give a few examples.
  • Aspect ratio: The ratio between the horizontal and vertical dimensions, such as 16: 9 (for every 16 pixels wide, there are nine high).
  • Screen size: is the length (in inches) of the diagonal of the monitor screen.
  • Screen resolution: the number of pixels on the screen, expressed as the product of the horizontal pixels multiplied by the vertical pixels, such as 1920 x 1080.
  • Refresh rate: is the number of times the screen is refreshed per second and is measured in Hertz (Hz).
  • Response time: the time it takes for a pixel to change from on to off and back on again. It is generally expressed in milliseconds (ms).
  • Contrast ratio: The relationship between the highest brightness that a monitor is capable of generating with the darkest color that it can present.
  • Delta-E: is the precision with which the monitor can represent a color. Generally, a Delta-E between 2 and 4 is a good precision, but below this, the human eye cannot perceive the difference.
  • Viewing angle: is the angle measured in degrees, at which a user can see the monitor screen well without distorting the colors.
  • Panel type: monitors use different types of panels, each with specific characteristics. They can be LED-IPS, LED-VA, LED-TN, etc.
  • Pixel size: the size of a pixel represented on the screen.
  • Video inputs: A monitor must have video inputs, ranging from the old-fashioned D-Sub (VGA) to DisplayPort or, on more ultra-modern monitors, the new USB-C cable standard.

How do you know if your monitor isn’t working?

When a computer fails to display its output to a monitor connected to it, there are two possible causes: the monitor or its cable is failing.

The computer’s video display subsystem is failing. Both problems can happen at the same time.

Unfortunately, monitors typically do not display their status information on the computer, so the software cannot diagnose your condition with certainty.

However, you can find out if your computer monitor is not working well by changing components.

Step 1

Turn off and then unplug the monitor that is currently connected to your computer.

Step 2

Connect the same monitor to a computer that you know is working properly. The computer must be on. If you get a good image on the screen, your original computer faults its video display subsystem.

Step 3

Connect a monitor that you know works well to the original computer. Turn on the monitor. If you see a good image on the screen, then your original monitor, or its cables and/or adapters, is the one with a fault.

What are the uses and importance of monitors? 

Monitors are essential components of modern-day computing. They are responsible for displaying all of the information that a computer processes. Monitors are used for a wide variety of tasks such as gaming, web browsing, watching videos, and much more.

The importance of monitors lies in their ability to provide a clear, accurate, and responsive picture of what is happening in a computer system. Monitors are also essential for providing better ergonomics, reducing eye strain, and allowing for better multitasking.

Monitors are necessary for modern-day computing, as they allow users to see, interact, and control their digital environment.

What is a monitor for gaming?

A monitor for gaming is a type of computer display specifically designed for gaming. It usually has a larger screen size and higher resolution than the standard monitor and is designed to provide a better gaming experience.

Gaming monitors usually have faster refresh rates, a wider color gamut, and better color accuracy than traditional monitors. They typically also include features such as adaptive sync, low input lag and a variable refresh rate.


A monitor is an essential part of a computer. It is used to display the output of the computer, either graphics or text. Its characteristics include resolution, refresh rate, and aspect ratio. Monitors work by taking the signal from the computer and displaying it on the screen.

It has a long history, starting with the oscilloscope. There are several types of monitors, such as LCD, LED, and CRT. Each type has a different function and is connected to the computer using different types of connections. Monitors also have various parts, such as the display panel, video card, and power supply. The panels of a monitor will vary depending on the type of monitor.

Knowing the different parts, functions, and connections of a monitor will help ensure that your computer is running smoothly and efficiently.

Thank you very much for reading the blog post – “What is a Monitor?”

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