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Output Devices
Video Display Unit (VDU) or Monitor
Video Display Unit is similar to a television. It is used to display the results of processes. The screen is illuminated by a number of dots known as pixels. The number of dots per unit area is called resolution. The higher the resolution, the better will be the quality of the picture. A lighted symbol in a form of a line or rectangle visible on the screen known as Cursor, to indicate the position for typing a command. If any keys are pressed, it moves along the alphabet typed. A typical Video Display Unit screen can accommodate 25 lines, each line consisting of 80 characters.
Printers
There are various kinds of printers. They are basically divided into two categories:
Impact printers and Non-impact printers.
requirement analysis and specification for online voting
In computing, a system call is how a program asks for a service from an operating system''s kernel. This may contain hardware related services (for example accessing the hard disk)
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#question.a tree has 0 off springs at each node. if it had a label L, what will be the maximum number of nodes that the tree can have. only an expression involving the number of no
what is operating system
how to use computer and how we can manage it
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General Considerations for Search If we may specify the starting state, the operators and the goal check for a search problem, then we know from where to start, how to move and
To build assembler programs with TASM programs is a different program structure than from using debug program. It''s important to comprise the subsequent assembler commands: ..CODE
Cathode Ray Tube Monitors (CRT): Monitors display what is going on in your computer. They can run at various resolutions. It is the part of computer which looks like a TV set.
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