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Friday 10 August 2012

BASIC COMPUTER TERMS


                                         BASIC COMPUTER TERMS

 

1 . Q. what is access time?


Ans :The time interval between the instant that data is requested and the instant that it is received.

2. Q. what is address?


Ans :A character or group of characters that identify a register, a location or some other data source or destination.

3. Q. what is algorithm?


Ans :A set of rules for solving a problem in a given number of steps.

4. Q.what is analog?


Ans :A method of storing information, used by most audiotapes, videotapes and laserdiscs (and all LP phonograph records, remember those?). An analog device uses a physical quantity, such as length or voltage, to represent the value of a number. By contrast, digital storage relies on a coding system of numeric units.

5 .Q. what is Application Layer?


Ans :Layer seven of the OSI reference model. It serves as a means by which applications access communications services.

6. Q. what is ATM?


Ans :Asynchronous Transfer Mode. A standard for cell relay that uses fixed length cells of 53 bytes, 5 bytes of which are headers. Can support multiple services including voice, video and data.

7. Q. what is bandwidth?


Ans :A piece of the spectrum occupied by some form of signal, where it is television, voice, fax data, etc.. Signals require a certain size and location of bandwidth in order to be transmitted. The higher the bandwidth, the faster the signal transmission, and thus allowing for a more complex signal such as audio or video. Because bandwidth is a limited space, when one user is occupying it, others must wait their turn. Bombarding the Internet with unnecessary information is referred to as "taking up bandwidth."

8. Q. what is a compiler?


Ans :A program that translates human-readable programs into a form the computer understands. The input (source code) to the compiler is a description of an algorithm in a problem- oriented language; its output (object code) is an equivalent description of the algorithm in a machine-oriented language.

9. Q. what is a configuration?


Ans :The particular hardware elements and their interaction in a computer system for a particular period of operation.

10. Q. Define cursor?


Ans :A symbol on a display screen that indicates the position at which the next character entered will be displayed. The symbol often blinks so that it can be easily noticed.

11. Q. Define debug?


Ans :To detect, trace and eliminate errors in computer programs.

 

 

12. Q. Define encapsulation?


Ans :Combining or defining a data structure of attributes and a group of associated functions and behaviors as a single object.

13. Q. Define folder?


Ans :A place where a user's e-mail messages may be stored. Every user has a folder for new messages, and on most systems may create other folders for specific purposes.

14. Q. Define FAQ?


Ans :Frequently Asked Questions. A collection of information on the basics of any given subject. Often put together and archived on a server so that people don't waste bandwidth asking simple questions.

15. Q. What is a HTML?


Ans :Hypertext Markup Language. A convention of codes used to access documents over the World-Wide Web. Without HTML codes, a document would be unreadable by a Web browser.


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