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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.
Moderns: As it was explained earlier, communications channels can operate in either the Analog or digital mode. However, a given circuit can operate only in one mode not both
number of 4 to 16 line decoders required to get 8 lto 256 line decoder
QUESTION 1 Describe the binary search algorithm using an example of your own. QUESTION 2 (a) By showing all your workings, give a big-O estimate for f(x) = (x + 1)lo
The development of your learning module is very time consuming, so it is recommended that you begin creating your learning module during this first week. Before you begin, download
Twisted Pairs: Twisted pairs are familiar to all of us as the copper wire telephone lines. These are of low frequency, and support a limited bandwidth (one voice channel) but
Question 1 What is Content Addressable Storage? Explain the elements of Content Addressable Storage Question 2 Explain briefly about DAS Question 3 Explain about N
Advantages of Computerized Record-keeping Less manpower is required for upkeep. Recording, storing, and retrieving are all much faster: easier and with little practice
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
The 7489 TTL Ram Device: The 7489 TTL Ram package has 64 memory cells, each cell is capable of holding a single bit of data. The cells are organised into locations, and each l
javascript handling of events
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