Which component forms part of the CPU?

$($a$)$ hard disk

$($b$)$ control unit

$($c$)$ motherboard

$($d$)$ CD$-$ROM

$7.$ The huge set of millions of hyperlinked web pages worldwide is

collectively known as the:

$($a$)$ matrix.

$($b$)$ Internet.

$($c$)$ WWW$.$

$($d$)$ Intranet.

$8.$ Which one of the following is not one of the basic types of data that

can be entered into a spreadsheet?

$($a$)$ text

$($b$)$ graphics

$($c$)$ numbers

$($d$)$ formulae

$9.$ Which computer is used by commercial organisations to process

large volumes of data?

$($a$)$ macrocomputer

$($b$)$ mainframe

$($c$)$ supercomputer

$($d$)$ minicomputer

$10.$ Which one of the following has a refresh rate measured in Hz$?$

$($a$)$ monitor

$($b$)$ mouse

$($c$)$ scanner

$($d$)$ keyboard

$11.$ What is the generic name for programs developed to improve the

functionality of the operating system?

$($a$)$ system software

$($b$)$ application software

$($c$)$ utility software

$($d$)$ compiler software

$12.$ In database terminology, what does data redundancy mean?

$($a$)$ duplicated data

$($b$)$ out of date data

$($c$)$ missing data

$($d$)$ inaccurate data