GCSE COMPUTER SCIENCE OCR EXAMS SCRIPT QUESTIONS
AND ANSWERS SURE A+
✔✔Anti-malware Software - ✔✔designed to find and stop malware from damaging a
network
✔✔Encryption - ✔✔data is translated into code which only someone with the correct key
can access
✔✔Data Protection Act - ✔✔your data should be protected and kept safe from hackers
✔✔Freedom of Information Act - ✔✔allows members of the public to access information
held by a public organisation
✔✔Computer Misuse Act - ✔✔stop hacking and cyber crime - stop unauthorized access
to private network
✔✔Copyright Act - ✔✔protect intellectual property - anything someone has created
✔✔alphanumeric - ✔✔collective name for letters, digits, symbols
✔✔analogue signal - ✔✔a continuous signal which can't be processed by a computer
✔✔argument - ✔✔a value that a parameter of a subprogram actually takes
✔✔ALU - ✔✔part of CPU that carries out arithmetic and Boolean operations
✔✔array - ✔✔data structure where all data is stored and defined under one variable
name
✔✔ASCII - ✔✔A 7-bit character set consisting of 128 characters
✔✔assembler - ✔✔a program that turns assembly language into machine code
✔✔assembly language - ✔✔low-level langauge
✔✔authentication - ✔✔a process for checking user identity
✔✔binary - ✔✔a counting system using base-2 consisting of 0s and 1s
✔✔binary shift - ✔✔moving the bits in a binary number left or right and filling gaps with
0s
✔✔BIOS - ✔✔Basic Input Output System
, ✔✔bitmap image - ✔✔a graphic made up of pixels
✔✔bit - ✔✔a binary digit either 0 or 1
✔✔bit rate - ✔✔number of bits used per second of sampled audio
✔✔breakpoint - ✔✔a programming tool used to halt a program at a specific place
✔✔byte - ✔✔8 bits
✔✔casting - ✔✔a way of changing from one data type to another
✔✔character - ✔✔a single alphanumeric symbol
✔✔code editor - ✔✔part of an IDE where you write and edit your source code
✔✔colour depth - ✔✔the number of bits used for each pixel in an image file
✔✔comment - ✔✔a note added to source code to say what part of a program does
✔✔comparison operator - ✔✔compares two values and outputs either true or false
✔✔compiled code - ✔✔an executable file created by a compiler
✔✔compiler - ✔✔a programming tool to translate source code into machine code
✔✔compression - ✔✔process of making the size of a file smaller
✔✔computational thinking - ✔✔tackling a problem through decompostion, abstraction
and algorithmic thinking
✔✔concatenation - ✔✔joining strings together
✔✔constant - ✔✔named value which cannot be altered as program is running
✔✔debugging - ✔✔identifying and fixing errors in a program
✔✔dedicated system - ✔✔a computer system designed to carry out a specific task
✔✔denary - ✔✔system using base-10
✔✔digital signal - ✔✔the representation of an analogue signal using binary data
AND ANSWERS SURE A+
✔✔Anti-malware Software - ✔✔designed to find and stop malware from damaging a
network
✔✔Encryption - ✔✔data is translated into code which only someone with the correct key
can access
✔✔Data Protection Act - ✔✔your data should be protected and kept safe from hackers
✔✔Freedom of Information Act - ✔✔allows members of the public to access information
held by a public organisation
✔✔Computer Misuse Act - ✔✔stop hacking and cyber crime - stop unauthorized access
to private network
✔✔Copyright Act - ✔✔protect intellectual property - anything someone has created
✔✔alphanumeric - ✔✔collective name for letters, digits, symbols
✔✔analogue signal - ✔✔a continuous signal which can't be processed by a computer
✔✔argument - ✔✔a value that a parameter of a subprogram actually takes
✔✔ALU - ✔✔part of CPU that carries out arithmetic and Boolean operations
✔✔array - ✔✔data structure where all data is stored and defined under one variable
name
✔✔ASCII - ✔✔A 7-bit character set consisting of 128 characters
✔✔assembler - ✔✔a program that turns assembly language into machine code
✔✔assembly language - ✔✔low-level langauge
✔✔authentication - ✔✔a process for checking user identity
✔✔binary - ✔✔a counting system using base-2 consisting of 0s and 1s
✔✔binary shift - ✔✔moving the bits in a binary number left or right and filling gaps with
0s
✔✔BIOS - ✔✔Basic Input Output System
, ✔✔bitmap image - ✔✔a graphic made up of pixels
✔✔bit - ✔✔a binary digit either 0 or 1
✔✔bit rate - ✔✔number of bits used per second of sampled audio
✔✔breakpoint - ✔✔a programming tool used to halt a program at a specific place
✔✔byte - ✔✔8 bits
✔✔casting - ✔✔a way of changing from one data type to another
✔✔character - ✔✔a single alphanumeric symbol
✔✔code editor - ✔✔part of an IDE where you write and edit your source code
✔✔colour depth - ✔✔the number of bits used for each pixel in an image file
✔✔comment - ✔✔a note added to source code to say what part of a program does
✔✔comparison operator - ✔✔compares two values and outputs either true or false
✔✔compiled code - ✔✔an executable file created by a compiler
✔✔compiler - ✔✔a programming tool to translate source code into machine code
✔✔compression - ✔✔process of making the size of a file smaller
✔✔computational thinking - ✔✔tackling a problem through decompostion, abstraction
and algorithmic thinking
✔✔concatenation - ✔✔joining strings together
✔✔constant - ✔✔named value which cannot be altered as program is running
✔✔debugging - ✔✔identifying and fixing errors in a program
✔✔dedicated system - ✔✔a computer system designed to carry out a specific task
✔✔denary - ✔✔system using base-10
✔✔digital signal - ✔✔the representation of an analogue signal using binary data
