PERIPHERAL, A piece of hardware that connects to a computer, e.g. mouse, keyboard...etc., DRIVERS, Programs which manage the connections with peripherals., PROTOCOL, A set of rules for how messages are turned into data packets and sent across networks., CORRUPT, A computer file that is damaged., UTILITIES, Applications which allow the user to manage the computer., BACKUP, Allows the user to restore the system to a previous state., DEFRAGMENTATION, Rearranging the information on a disk so that files appear in a continuous sequence of clusters., FIREWALL, Used to filter data from trusted and untrusted networks., ENCRYPTION, Software which uses a secret code to make them unreadable to unauthorised users., VIRUSES, Computer code designed to damage a computer system., WINDOWS, Popular operating system made by Microsoft, ANDROID, Operating system usually found in mobile phones, INTERFACE, The way in which a user interacts with the computer, GUI, Graphical User Interface, CLI, Command line interface, RAM, Volatile memory that is constantly being written to and read from, CPU, Sometimes referred to as the brains of the computer, MULTITASKING, The ability for a computer to run two programs at the same time, SCHEDULING, The job of the CPU working out when to swap processes, BUFFERING, A temporary area of the computer memory used to store data for running processes

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