Aqa As Computer Science - Paper 2 Exam Questions (107 Terms) With Verified Definitions Updated 2024

Random Access Memory (RAM) {Ans: Used to store short term information - e.g. when browsing the internet, web pages might be downloaded and stored in here. It's name is derived from the fact that random storage locations can all be accessed quickly. It is volatile memory, so it can only be used for short term storage.}Byte {Ans: A group of bits (usually 8) treated as one unit.}Solid State Drive (SSD) {Ans: A replacement for hard drives. A smaller and faster hard drive which normally costs more. Typically, the operating system is stored on this, while large files such as photos, music, and videos, are stored on a "traditional" spinning hard disk.}Data bus {Ans: Transfers data between the processor and the memory.}Client-server system {Ans: A system in which some computers (the clients), request services provided by other computers, the servers.}Communication Protocol {Ans: A set of agreed signals, codes and rules to be used for data and information exchange between computers.}Decryption {Ans: Using an algorithm and a key to convert encrypted message data into its plain text equivalent.}WiFi {Ans: Trademarked IEEE 802.11 technologies that support wireless networking of home and business networks.}Read Only Memory