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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.
Read only memory (rom): The problem with RAM is that its memory is volatile, i.e. it loses all its data when the power supply is removed. A non-volatile memory is a permanent
PLEASE HELP ME TO CONSTRUCT THE XOR GATE USING ONLY NAND GATE
explain CAI pitfalls
URL services has two divisions. Basic webpages and custom webpages. Ricky Vega, Custom's manager wants to find out why Custom is not profitable. He has prepared the following repor
What is CAI? Explain its pitfalls
Question 1 Explain the role of object oriented designers in developing a software system Question 2 What are the four essential elements of design patterns? Explain Question 3
An E-Mail Account: Inbox: Inbox is the main folder in your email account. It contains all the e-mails that have arrived in your e-mail account. You can click on inbox to see t
QUESTION (a) Define z-transform of sequence x[n]. (b) A causal LTI system has impulse response h[n], for which the z-transform is H(z) = (1+z -1
• A set of process is in a deadlock state if each process in the group is waiting for an event that can be caused by only another process in the set. In other words, each member of
Header contains routing and error control information Payload carries the actual user information, either voice, data or video
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