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Computers have become a part of modern life. Today's school children carry around calculating power, which would have filled a large room 40 years ago. Computer scientists are now working on the next generation of computers, ones which will have true intelligence.
What are the parts of a computer? The word 'hardware' refers to the physical parts of the computer. The main parts are the monitor, the keyboard, the mouse and the CPU or Central Processing Unit, which contains the hard disk. The monitor is also known as the screen or VDU (Visual Display Unit). It looks like a television screen and displays what we do on the computer. It comes in different sizes.
The actual computer i.e. the part that performs tasks we ask it to do is in a unit holding the CPU, memory and hard and floppy disks. It comes in a rectangular box.
CPU stands for Central Processing Unit. This could be called the brain of a computer. It performs calculations and manipulates data. The keyboard functions like a typewriter. The computer is given commands by typing them on the keyboard. Information is then displayed on the monitor.
The mouse is a hand-held pointing device. By moving the mouse around on a flat surface, a pointer or arrow on the monitor will make corresponding movements. By clicking, holding and dragging with the mouse various things can be done on the monitor. The hard disk is a fixed device for parmanent storage, which stays within the computer. A hard disk is capable of holding tremendous amounts of information, yet it is only a few inches in width and length. A computer also has a floppy disk srive. It is a slot for the insertion of portable disks also known as floppy disks.
|i. last||ii. hides||iii. ancient|
|iv. taken||v. temporary||vi. disable|
|vii. fixing||viii. hides||ix. same|
|i. next||ii. displays||iii. modern|
|iv. given||v. permanent||vi. able|
|vii. portable||viii. displays||ix. different|
Answer the following questions:
|(a) CPU is a hand-held pointing device.|
|(b) Information is displayed on the monitor.|
|(c) 'Hard Disk' is contained in a keyboard.|
|(d) The mouse is moved around on a flat surface.|
|(e) A monitor is like the screen of a TV.|
|(f) A keyboard is a part of typewriter.|
|(g) A floppy disk can't be carried because it is a fixed device.|
|(h) A hard disk is in CPU.|
|(i) The CPU looks like a screen.|
|(j) Forty years ago school children used large computers.|
|(k) The hardware is the physical property of computer.|
|(l) The CPU can't be said the brain of computer.|
|(m) The mouse doesn't have any work to do on screen.|
|(n) The screen of the computer is also known as VDU.|
|i. principal||ii. particular jobs or works||iii. occupied|
|iv. information presented in a systematic way||v. instrument||vi. diverse|
|vii. equivalent||viii. operate||ix. indicates|
|x. real||xi. nevertheless|
|i. main||ii. task||iii. filled|
|iv.data||v. device||vi. various|
|vii. corresponding||viii. perform||ix. points|
|x. true||xi. yet|
Find the words, from the above passage, which are closest to the following definitions: