GCSE Computer Science (OCR) QUESTIONS AND ANSWERS
Algorithm - (answer)A sequence of steps to be performed to solve a problem
Computer Program - (answer)An implementation of an algorithm
Data Structure - (answer)Specialized format for storing and organizing data
Procedure - (answer)A names section of code which performs a task and does not return a value
Function - (answer)A named section of code which performs a task and returns a value
Parameter - (answer)A special type of variable which can be passed through sub-routines
Scope - (answer)The reach of a variable/data structure
Computer System - (answer)A combination of software and hardware
Character - (answer)Single Value "a" or "9"
Integer - (answer)Whole Number
Boolean - (answer)True or False Value
ASCII - (answer)Character Set: Limited to 7 bits, only applicable in Latin based languages
Real - (answer)Integer or
Decimal Number
,GCSE Computer Science (OCR) QUESTIONS AND ANSWERS
Binary - (answer)Composed of 1's and 0's
Hexadecimal - (answer)Composed of Integers 0-9 and Strings A-F
Denary - (answer)Composed of Digits 0-9
Run-Time Error - (answer)Error that occurs while the program is running
Unicode - (answer)Alternative character set
Iteration - (answer)The process of repeating steps
Selection - (answer)A question is asked and from the response several paths can be taken
Sequence - (answer)The order in which instructions are performed
Logic Error - (answer)An error in the logic of the code which causes it to run incorrectly but not crash
Syntax Error - (answer)An error in the syntax of the code
Will cause the program to crash
Sample Rate - (answer)The frequency at which samples are taken
Requirements - (answer)When the team decides what the software needs to do, To think about what
the user will want the program to do
Design - (answer)Working out the smaller details of the program by breaking it down into smaller
chunks
, GCSE Computer Science (OCR) QUESTIONS AND ANSWERS
Implementation - (answer)The program code is written
Testing - (answer)Testing the program under various conditions to make sure it is going to work
Evolution - (answer)Maintaining and updating the program
Lossy Compression - (answer)Removes some of the file's original data to reduce file size
Resolution - (answer)How tightly packed the pixels are
Bit Map Image - (answer)Images composed of lots of pixels
Vector Image - (answer)Image created in graphics packages and consist of shapes called objects
Lossless Compression - (answer)Various algorithms are used to find parts in the data that are repeated
Ring Topology - (answer)Fast data transfer but if one machine fails the whole network will fail.
Bus Topology - (answer)Easy and cheap to install but if the main cable fails the whole network will crash
Star Topology - (answer)Reliable and high-performing but expensive to install and if a hub/switch fails
the devices will not have network connection
CPU - (answer)Brains of the computer. Mainly processes and uses data to perform taks
GPU - (answer)A chip/processor designed to boost the performance of games and graphics
Algorithm - (answer)A sequence of steps to be performed to solve a problem
Computer Program - (answer)An implementation of an algorithm
Data Structure - (answer)Specialized format for storing and organizing data
Procedure - (answer)A names section of code which performs a task and does not return a value
Function - (answer)A named section of code which performs a task and returns a value
Parameter - (answer)A special type of variable which can be passed through sub-routines
Scope - (answer)The reach of a variable/data structure
Computer System - (answer)A combination of software and hardware
Character - (answer)Single Value "a" or "9"
Integer - (answer)Whole Number
Boolean - (answer)True or False Value
ASCII - (answer)Character Set: Limited to 7 bits, only applicable in Latin based languages
Real - (answer)Integer or
Decimal Number
,GCSE Computer Science (OCR) QUESTIONS AND ANSWERS
Binary - (answer)Composed of 1's and 0's
Hexadecimal - (answer)Composed of Integers 0-9 and Strings A-F
Denary - (answer)Composed of Digits 0-9
Run-Time Error - (answer)Error that occurs while the program is running
Unicode - (answer)Alternative character set
Iteration - (answer)The process of repeating steps
Selection - (answer)A question is asked and from the response several paths can be taken
Sequence - (answer)The order in which instructions are performed
Logic Error - (answer)An error in the logic of the code which causes it to run incorrectly but not crash
Syntax Error - (answer)An error in the syntax of the code
Will cause the program to crash
Sample Rate - (answer)The frequency at which samples are taken
Requirements - (answer)When the team decides what the software needs to do, To think about what
the user will want the program to do
Design - (answer)Working out the smaller details of the program by breaking it down into smaller
chunks
, GCSE Computer Science (OCR) QUESTIONS AND ANSWERS
Implementation - (answer)The program code is written
Testing - (answer)Testing the program under various conditions to make sure it is going to work
Evolution - (answer)Maintaining and updating the program
Lossy Compression - (answer)Removes some of the file's original data to reduce file size
Resolution - (answer)How tightly packed the pixels are
Bit Map Image - (answer)Images composed of lots of pixels
Vector Image - (answer)Image created in graphics packages and consist of shapes called objects
Lossless Compression - (answer)Various algorithms are used to find parts in the data that are repeated
Ring Topology - (answer)Fast data transfer but if one machine fails the whole network will fail.
Bus Topology - (answer)Easy and cheap to install but if the main cable fails the whole network will crash
Star Topology - (answer)Reliable and high-performing but expensive to install and if a hub/switch fails
the devices will not have network connection
CPU - (answer)Brains of the computer. Mainly processes and uses data to perform taks
GPU - (answer)A chip/processor designed to boost the performance of games and graphics
