virtual memory - area of hard disc to store memory as if it was ram, RAM - random access memory, ROM - read only memory, flash memory - storing data electronically (memory cards), cache memory - small memory in the cpu, solid state drive - stores data in electronic circuits , magnetic storage - storage that uses the surface to store data, internal storage - storage built into the computer (on motherboard), boot program - program used to start the computer  (automatically loaded), clock speed - speed processor carries out instructions, ascii - 7bit character code, unicode - 16bit character code, malware - any program designed to be harmful , firewall - monitors traffic between computer and internet and only allows authorised, hub - channels load of input signals into one output line, NIC - network interface card/controller , topology - layout of the network, peer to peer - all thing are equal , client to server - server computer provide services for client workstations, router - connects all networks , domain name - name assigned to resource on internet , protocol  - rules/standards for a device to communicate, internet - international network of networks, data protection act - 1998, computer misuse act - 1990, freedom of information act - 2000, copyrights designs and patents act - 1988,

ocr gcse computer science

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