IGCSE Computer Science Paper-1: Specimen Questions with Answers 93 - 94 of 164

Question number: 93

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What happens to a floppy disk when it is formatted?

Explanation

When a floppy disk is formatted all information from the disk gets erased. Apart from the information any malware or virus can also be deleted for once and all. Fresh data can be stored once again onto the floppy disk once it has been formatted. Generally the new floppy disks we purchase from the market are pre-formatted to prevent the storage area from getting affected due to any worms or viruses.

Question number: 94

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Which type of transmission is involved between a computer and a keyboard transmission?

Explanation

Image of The type of transmission

Image of the Type of Transmission

The Simplex Transmission Mode is used during the transmission between a computer and a keyboard.

i) The Simplex Transmission Mode is a one-way communication mode where one party is the transmitter and the other one is the receiver.

ii) For example in case of a radio where we can receive data from stations without transmitting data.

ii) As simplex transmission involves one way transmission so there are no traffic issues.

iii) In simplex transmission mode bidirectional communication is not possible at all and the communication is unidirectional only.

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