Exam (elaborations)
iGCSE Computer Science 0478
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iGCSE Computer Science 0478 iGCSE Computer Science 0478 iGCSE Computer Science 0478
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iGCSE Computer Science 0478Character - ANS Text, numbers and symbols, for example each key on a keyboard.
Algorithm - ANS Step by step set of instructions.
Data - ANS numbers, symbols or alphanumeric characters in their raw format before processing
Analogue - ANS this is the smooth stream of data that our senses process on a daily basis, such as a
sound wave
Digital - ANS data represented in the values 1 and 0 that a computer can process
Denary - ANS a system of numbers with a base of 10. Each unit used increases by the power of 10
Binary - ANS a system of numbers with a base of 2. Each unit increases by the power of 12
Register - ANS small pieces of memory where values can be held
Hexadecimal - ANS a system of numbers with a base of 16. Each unit used increases by the power of 16
Debug - ANS finding and fixing problems and errors in a program
Character - ANS text, numbers and symbols, for example each key on a keyboard
Algorithm - ANS a step-by-step set of instructions
, Bit - ANS short for binary digit, it is the smallest unit of data in a computer
Bit rate - ANS the rate at which data is transferred
Serial transmission - ANS uses a single wire to transfer bits of data
Parallel transmission - ANS uses multiple wires to transfer bits of data
Interference - ANS disturbances that can occur in the signals when sending data that may corrupt it
Simplex transmission - ANS sending data in one direction only at a time
Duplex transmission - ANS sending data in both directions at the same time
Half- duplex transmission - ANS sending data in both directions but only one direction at a time
Hacker - ANS a person who tries to gain unauthorized access to a computer on network
Malware - ANS a software program that is designed to damage or disrupt a computer
Virus - ANS a software program that is designed to corrupt a computer and the files on it
Spyware - ANS a software program that collects users information through their Internet connection
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