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Some of the important output devices used on your computer are listed below. Graphics Plotter Printer Monitors Monitors Monitors, commonly referred to as visual display units (VDUs), are the main output device of a computer. It creates images from tiny dots called pixels that are arranged in a rectangular shape. Image sharpness depends on the number of pixels. Two types of screens are used in monitors. Cathode ray tube (CRT) monitor Flat display Cathode ray tube (CRT) monitor A CRT screen is made up of small image elements called pixels. The smaller the pixels, the better the image clarity or resolution. You need more than one highlighted pixel to create an entire character, for example the letter e in help. A limited number of characters can be displayed simultaneously on the screen. The screen can be divided into several character fields - a fixed place on the screen where you can insert a standard character. Most screens can display 80 characters of data horizontally and 25 lines vertically. CRT monitors have some disadvantages - Large size High power consumption Flat screen monitor Flat screen monitor refers to the class of video devices that have lower volume, weight and power consumption compared to CRT monitors. You can hang them on the wall or wear them on your wrist. Current applications for flat panel displays include calculators, video games, monitors, laptops, and graphic displays. Flat panel displays fall into two categories - Emission displays - Emission displays are devices that convert electricity into light. For example, a plasma panel and light emitting diodes. Non-emissive displays - Non-emissive displays use optical effects to convert sunlight or light from another source into graphic patterns. For example, LCD (liquid crystal device). Printers A printer is the output device used to print information on paper. There are two types of printers - Impact Printers Impact Printers Impact Printers Impact printers print characters by hitting them against the tape, which is then pressed against the paper. The characteristics of the impact printers are as follows - Very low cost of raw materials Very noisy Suitable for mass printing due to low cost There is physical contact with the paper to create an image These printers are of two types - Character printers Line printers Character printers Character printers Character printers are printers that print one character at a time. They are divided into two types: Dot matrix printer (DMP) Dot matrix printer with wheel One of the most popular printers on the market is the dot matrix printer. These printers are popular because of their ease of printing and economical price. Each printed character is in the form of a dot and the head consists of an array of pins sized (5 * 7, 7 * 9, 9 * 7 or 9 * 9) forming the character, hence the name Dot Matrix. Printer. Advantages Inexpensive Widely applicable Can also print characters from other languagesBelow are some of the most important output devices used in a computer. Monitors Plotter Printer Monitors Monitors, commonly referred to as the Visual Display Unit (VDU), are the main output device of a computer. It creates images from small dots called pixels that are arranged in a rectangular shape. Image sharpness depends on the number of pixels. Two types of screens are used in monitors. Cathode ray tube (CRT) screen Flat screen Cathode ray tube (CRT) screen A CRT screen is made up of tiny picture elements called pixels. The smaller the pixels, the better the image clarity or resolution. It takes more than one highlighted pixel to create an entire character, such as the letter e in the word help. A limited number of characters can be displayed simultaneously on the screen. The screen can be divided into several character fields - a fixed place on the screen where you can insert a standard character. Most screens can display 80 characters of data horizontally and 25 lines vertically. CRT monitors have some disadvantages - Large size High power consumption Flat panel monitor A flat panel monitor is a class of video devices that have lower volume, weight and power requirements compared to CRT monitors. You can hang them on the wall or wear them on your wrist. Current applications for flat panel displays include calculators, video games, monitors, notebooks, and graphics displays. Flat panel displays fall into two categories - Emission displays - Emission displays are devices that convert electricity into light. For example, a plasma panel and LEDs. Non-emissive displays - Non-emissive displays use optical effects to convert sunlight or light from another source into graphic patterns. For example, LCD (liquid crystal display). Printers A printer is the output device used to print information on paper. There are two types of printers - Impact Printers Non-Impact Printers Impact Printers Impact printers print characters by striking them on the ribbon, which is then pressed against the paper. The features of impact printers are as follows: - Very low running costs Very noisy Suitable for high volume printing due to low costs. Physical contact is made with the paper to create the image. These printers are of two types: Character printers Line printers Character printers Character printers are printers that print one character at a time. There are two types: Dot matrix printer (DMP) Dot matrix printer One of the most popular printers on the market is the dot matrix printer. These printers are popular because of their ease of printing and economical price. Each printed character is in the form of a pattern of dots, and the head consists of a matrix of pins of the size (5*7, 7*9, 9*7 or 9*9) forming the character, i.e. the so-called. dot matrix printer. Advantages Cheap Wide application Can also print other language characters

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