ICT Theory Keywords 0.0 / 5 ? ICTKeywordsGCSEEdexcel Created by: padge_21Created on: 05-05-18 11:12 Peripheral External device of a computer 1 of 23 Examples of Peripherals Keyboard, mouse, monitor, printer, scanner, headphones 2 of 23 Output device Presents data from a computer to a user 3 of 23 Examples of output devices Printer, screen, headphones, speakers 4 of 23 Input device Sends data to the computer 5 of 23 Examples of input devices Mouse, keyboard, touchscreen, microphone, scanner, game controller 6 of 23 1 gigabyte is equal to how many megabytes? 1000 7 of 23 1 gigahetz us equal to how many megahertz? 1000 8 of 23 CPU Processor Computer calculations (GHz) higher processor means faster but more power 9 of 23 Memory RAM Temporary, runs open programmes on a computer. More RAM means more open programs and a faster response 10 of 23 Hard Drive Primary storage, (Gbytes) burger hard drive, more data can be stored 11 of 23 USB connection Most common method of connecting peripheral devices to a computer 12 of 23 Sound card/Graphic card Allows computers to play and record sound and display graphics (videos, music and games) 13 of 23 Optical drive Read data encoded on CDs and DvDs (install software, watch movies, listen music, burn CDs) 14 of 23 Primary Storage Data stored on computers hard 15 of 23 Secondary storage Data stored on a secondary device such as a USB stick 16 of 23 Latency The time in milliseconds between a bit leaving one device and arriving at Another. LOW LATENCY IS GOOD 17 of 23 Bandwidth A measurement of the number of bits can go through connection in one second. HIGH BANDWIDTH IS GOOD 18 of 23 Email Protocol Methods to access email 19 of 23 IMAP Email Protocol Better option, can check emails from multiple devices 20 of 23 POP3 Email Protocol Downloads email from server to a SINGLE computer and will not appear on different devices 21 of 23 Open source software Free publicly accessible software that someone can modify and share 22 of 23 Proprietary Software (Closed-source software) Software that leggally remains the property of the organisation, group or individula who created it 23 of 23
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