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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.
Consider the one-time pad encryption scheme to encrypt a 1-bit message m, and assume m is chosen with uniform distribution from message space M={0,1}. Let E1 be the event "message
4. Union City Al has decided to upgrade their tornado warning system. The city leaders have identified six potential locations for erecting a warning siren tower. They want to e
note on high level language and low level language
how to measure marginal utility.?
The unconditional jumps in a written program in assembler language are specified by the jmp instruction; a jump is to moves the flow of the execution of a program by sending the co
Question 1 Classify and explain the different types of computers Question 2 List and explain the commonly used input devices Question 3 What is binary number system? Exp
A car battery is of 12 V. Eight dry cells of 1.5 V each connected in series can give 12 V. But such cells are not used in starting a car. Why?
draw a block diagram to show organization of a computer system .explain or a units of computer system
These instructions permit the use of the stack to store or recover data. POP POPF PUSH PUSHF POP INSTRUCTION Purpose: It improves a portion of information from the stack POPF INST
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