1 topic: living with a computer plan: Understanding of personal computer. Basic devices of a personal computer Additional devices of the personal computer

6 SUBJECT: Output devices

• PRINTERS. PLOTTERS. MONITOR(CRT AND FLAT SCREEN), HUMAN VOICE SYNTHESIS, MAKING DEVICES SOUND REPRODUCTION DEVICES. INPUT OUTPUT DEVICES. TERMINAL. ACCELERATOR CARDS, TOUCH SCREENS
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• Output devices convert computer-processed information into human-understandable form. Output devices include printers, plotters, screens, and audio output devices. The most important output devices are the printer and the monitor. There are hundreds and thousands of types of output devices like this.
• PRINTERS
• Printing devices (printers) is a device for outputting values from the EHM, which converts the ASCII codes of information into their corresponding graphic characters (letters, numbers, symbols, etc.) and records these characters on paper .
• Printer SHK TQ is the most advanced group of printers, they have up to 1000 different modifications. Printers differ in the following characteristics:
• - color (black and white and color);
• - method of character formation (character suppressor and character synthesizer);
• - working principle (matrix, thermal (heating), spray, laser);
• - methods of pressing (with and without percussion) and forming lines (serial and parallel);
• - carriage width (375 450 mm wide and 250 mm narrow carriage);
• - the length of the click line (80 and 132-136 characters);
• - typing characters (up to full typing of ASCII characters);
• - click speed;
• Bandwidth, etc.

• Within a number of groups, several types of printers can be distinguished: for example, dot-matrix printers synthesizing symbols widely used in the field of computer science, according to the principle of operation, they are percussive, thermographic, electrographic, electrostatic, magnetographic, etc. it can.
• Among the impact printers, needle (matrix) printers are the most common, but there are also liter, spherical, petal ("daisy" type) and others. meets.
• In printers, clicking can be by character, by line and by page. The printing speed ranges from 10-300 pages per second (percussion printers) to 500-1000 pages per second and even several dozen (up to 20) pages per second (non-percussion laser printers); throughput is from 3-5 dots per millimeter to 30-40 dots per millimeter (laser printers).
• For text clicking, there are generally the following modes with varying click quality:
• MATRIX PRINTERS
• In dot-matrix printers, the image is formed from dots using a percussive method, so it is more correct to call them "percussive-matrix printers", and other types of phrase-synthesizing printers often use matrix formation of symbols, but without percussive method. Nevertheless, "dot matrix printers" is their common name, so we will take them as a basis.
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