Paper 1 Mock 0.0 / 5 ? ComputingPaper 1A2/A-levelOCR Created by: priceo10Created on: 19-03-18 20:14 Graphics Processing Unit rendering images, run modelling calculations 1 of 17 Libraries saves time/money, pre tested, draws on knowledge of other programmers 2 of 17 Firewalls (Function) Monitors/filters/blocks traffic packets through a network 3 of 17 Firewalls (Advantages) Prevents unauthorised access to some sites 4 of 17 Hash A result generated by applying an algorithm to a value 5 of 17 Hash (Passwords) Password can't be reversed if someone accesses the database 6 of 17 Segmentation Memory divided logically, according to its contents 7 of 17 Paging Memory divided into fixed sized pages 8 of 17 RAM Volatile, Holds the data in use 9 of 17 LAN - Advantages Centrally administered to one location, one location of backup 10 of 17 LAN - Disadvantages Expensive to install, central point of failure 11 of 17 Encryption - Protect Film Send out key on release date 12 of 17 Multi Tasking Users can run more than one program at a time 13 of 17 Bit Shift Shift right two places 14 of 17 Rapid Application Development Prototype is created, feedback is given and applied to next stage, process is repeated until final product is created 15 of 17 Compression makes File smaller, easier/quicker/cheaper to download, saves on data usage 16 of 17 Lossless No data is lost, can be recreated 17 of 17
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