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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.
Question 1 Convert the following binary numbers to its specified number system 1101.11 (2) to octal 1111 (2) to decimal 110.11 (2) to hexadecimal 1011.11 (2) to
TRANSMISSION MEDIA: When we speak of transmission media, we usually mean a mix of physical lines ranging from wire pairs to cable, and over the air transmission media, such as
Word Processing (WP): Word Processing is one of the most widespread application software types in use today. Developed as a successor to primitive text editors that were popul
assignment
The technique to mix C and assembly language is to apply the "asm" directive. To access C-language variables from assembly language, you just use the C identifier that name is a me
There are two kinds of FCB, the normal, whose length is 37 bytes and the expanded one of 44 bytes. The FCB is created of data given by the programmer and by data which it takes dir
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A Doctor Module Doctor has a list of the patients waiting for consultation. The doctor's module should include all the following details: Fields for common complaint
Problem: a) Explain the basic functions of a computer: inputting, processing, storing and outputting. b) List four types of memory and explain how each wor
Types of Printers 1. Impact printers The impact printers produce the image through a mechanism of striking on the stationary. 2. Line Printer This type of printer
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