Computer Science 0.0 / 5 ? ComputingComputer systemsGCSEOCR Created by: zaziCreated on: 03-02-19 18:41 What is virtual memory? Virtual memory is space on the hard disk that is used as RAM when Ram runs out 1 of 15 What is the disadvantage of using virtual memory? Virtual memory is much slower than RAM so slows performance of computer down 2 of 15 What is ROM? ROM is read only memory and stores the instruction used by the computerto start up and to load the operating system 3 of 15 Give examples of scondary storage Magnetic storage, Otical storage and Solid state/flash 4 of 15 What are the 3 parts of computational thinking? Decomposition, abstraction and algorithms 5 of 15 What is an algorithm? An algorithm is a simple set of instructions used to carry out a task 6 of 15 What is a linear search? It is when items are examined in order from the start of the list until the item is found 7 of 15 What is a binary search? Binary search is a type where the list is repeadtedly split making searching easier 8 of 15 What is bubble sort? Bubble sort compares pairs of items until they are in the correct order 9 of 15 What is merge sort? Merge sort splits the list into smaller lists and merges pairs of sub lists together 10 of 15 What is insertion sort? Insertion sort takes each item in turn and places it in the correct place starting with the first item in the list 11 of 15 What is WAN? WAN is wide area network in which computers are geographically far away 12 of 15 What is LAN? LAN is local area network in which computers are geographically close together 13 of 15 Give advantages of a network A network allows communication between worker and allows data to be shared 14 of 15 What is an embedded system? An embedded system is one which has a processor biult into another device 15 of 15
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