ANSWERS FOR –A- Q1/

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ANSWERS FOR –A-
Q1/
Digital Computer :A computer that performs calculations and logical
operations with quantities represented as digits, usually in the binary
number system
- icon : asmall picture that represents a command , object, file or window
status bar: is located at the bottom of a window and contains information
about formatting option, errors, prompts, messages, or the status of an
application
a Cell?
In a spreadsheet the CELL is defined as the space where a specified row
and column intersect. Each CELL is assigned a name according to
its COLUMN letter and ROW number.
Q2/ 1- CPU: CONTROL PROCESS UNITE
2-ROM: READ ONLY MEMORY
3-OS: OPERATING SYSTEMS
4- REAL: real time operating systems
5- GRAPHICAL USER INTERFACES
Q3/ Ans/1- recognizing input from the keyboard or mouse
2-sending output to the monitor
3-keeping track of files and directories on the disk
4- controlling peripheral devices such as disk drives and printers.
Q4/ Ans/ window explorer: is the program that lets you explore things"
inside" your own computer.
Internet explorer lets you explore things "outside" your computer—
namely things on the internet.
Q5/ Ans/
1.
2.
3.
4.
5.
= K4+K6+K8
=5^R3
=D22*0.05
=M12-M18
=P7/14
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