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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.
advantage and disadvantage of operating system
Question 1 Explain the different categories of Software applications Question 2 Write a note on Data Dictionaries Question 3 Explain the following (a) Top-down testin
Identify three factors to consider in determining the competitive value of information technology. Justify the selected factors. Of the factors selected, determine if each fact
Web Browser: A Web browser is software application that enables you to find, retrieve, and display information available on the World Wide Web (WWW). Browser also allows you
Problem 1 What is precedence of operators? How are expressions evaluated using precedences? Defining precedence of operators Explanation of how expressions are evaluat
QUESTION (a) For each of the following systems, determine whether the system is (1) stable, (2) causal, (3) linear, (4) time invariant, (5) passive (i) Y[n] = x[-n] (ii)
Description A semaphore is a confined variable whose value can be accessed and changed only by the operations P and V and initialization operation known as ''Semaphoiinitislize''.
file system
Working of a Computer Computer may be divided into the following units Input Unit Main Memory or Primary Storage Unit Arithmetic-Logic Unit
Estimate the mean deflection of the QRS complex in each of the six standard leads (I, II, III, aVR, aVL, aVF) in Figure 1 and then estimate the mean heart vector for the normal hea
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