OCR GCSE Computer Science Keywords Set 2

Memory retains its data when power off

• Non-volatile
• Volatile
• Flash memory
• BIOS

Essential software that links the hardware and other software together and generally manages the computer system

• Operating System
• Defragmentation software
• Utility software
• Malware

Amount of data that can be transferred over a network in a given time

• Bandwidth
• Cache
• Clock speed
• Bit rate

Data is translated into code which only someone with the correct key can access

• Encryption
• Alphanumeric
• Argument
• Array

Data structure where all data is stored and defined under one variable name

• Array
• Integer
• String
• Boolean

Tackling a problem through decomposition, abstraction, pattern recognition and algorithmic thinking

• Computational thinking
• Debugging
• Compression
• Iterative testing

A character set that uses between 8 and 32 bits per character, so it can represent characters from languages from all around the world

• Unicode
• Hexadecimal
• ASCII
• Binary

A programming language like C++ or Java

• High-level language
• Machine code
• Assembly language
• Syntax

4 bits

• Nibble
• Kilobyte
• Byte
• Megabyte

Repeating steps or instructions over and over again, using loops

• Iteration
• Selection
• Sequence
• Abstraction