2008 O/L

	2008 O/L
	(i)	Write in one sentence, the difference between raw data and information.
		The basic  facts, figures or measurements are considered as raw data and a meaningful process on these items results information
	(ii)	Write two examples of digital devices.
		Calculator, digital camera, webcam
	(iii)	Write why there is no symbol on the space bar of a computer keyboard.
		Space has no symbol
	(iv)	Write two examples of guided data communication media
		Twisted Pair (UTP/ STP) , fiber Optic cable
	(v)	Why is a dot matrix printer not suitable to be used in an operation theatre?
		They make a lot of noise which is not suitable for an operation theatre
	(vi)	Why do you need more computer memory to store a video clip than an audio clip of the same duration?
		Video clips contain more information than audio clips. in general, video clips contain audio information in addition to imaging information.
	(vii)	Out of the two types of personal computer memories ROM and RAM, which memory is volatile?
		RAM
	(viii)	Draw the two symbols you get when you flip the letter F horizontally and vertically respectively using a graphics utility software.
	(ix)	Write two examples of full duplex communication.
		Telephone conversation(Mobile phone) video conferencing
	(x)	What are the values of 999 MOD 1000 and 1000 MOD 99 respectively?
		999 MOD 1000 = 999 and 1000 MOD 99 = 1