Study the following diagram and answer the questions that follow

Study the following diagram and answer the questions that follow

From the diagram:
(i) Name two devices that are used for long term storage 
(ii) Name three peripherals shown on the diagram that are used for input 
(iii) Name two other devices that a computer Aided Design (CAD) user might wish to add to the set- up above 
(b)A customer wishes to purchase a computer system. The customer can buy a word processor, spreadsheet, database and a drawing package separately or as an integrated package. State three advantages why many computer users prefer integrated packages to separate packages.
(c) (i) An anti- virus software  installed in a computer is loaded  into the main memory each time the computer is switched on
Explain three ways in which computer virus are spread from one computer to another 
(ii) Give two reasons why an anti virus package should be updated regularly

RESPONSES

(a) (i)ROM
Hard disk 2GB HDD
(ii)

•  Scanner
•  Mouse
•  Floppy drive
•  CD drive
•  Network
•  HDD drive

(iii)

•  Plotter
•  High resolution graphics adapter/S VGA/XVGA
•  Graphic tablet
•  Digitizer
•  Light pen
•  Touch screen

(b) 

•  one can switch between applications fast/easily
•  integrated use less storage space due to sharing of the some applications
•  they are cheaper
•  easier to install
•  easier to learn since they have related features/to use
•  maintenance is easier since only one vendor will be responsible in case of any problem
•  Ease of transfer of data from one application to the other.
•  using storage media from infected computer
•  internet use browsing
•  Downloading files
•  Through the network
•  Opening unsolicited /questionable mails
•  Playing fake games/using fake games
•  Use of pirated software
•  Freeware/shareware.

(ii)
 To enable remove upcoming viruses/new viruses
 For maintenance purposes (patches)
 To upgrade/replace outdated antiviruses.

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