AQA GCSE ICT 0.0 / 5 ? ICTALL TOPICSGCSEAQA Created by: Mena SalahCreated on: 13-05-16 11:48 Hardware physical components 1 of 28 Software set of instructions 2 of 28 PC +very powerful -not portable 3 of 28 Laptop +portable +battery -expensive 4 of 28 Netbook +smaller -less power & storage 5 of 28 PDA +handheld -least powerful -replaced by smartphones 6 of 28 Processor brain processes raw data to info 7 of 28 Motherbord central circuit board all hardware connected 8 of 28 Sound card outputs sound from speaker 9 of 28 Graphics card processes image> output monitor 10 of 28 Optical drive CD/DVD 11 of 28 Hard drive backing storage device>save programs/docs 12 of 28 Remove software uninstall 13 of 28 Shut down o close all software o shut down o wait 14 of 28 Fix a software freeze o restart o task manager>restart software> ctrl+alt+del 15 of 28 Fix a storage full message o delete unneeded files>externally back up 16 of 28 Fix paper jam o power down o remove paper o reconnect 17 of 28 Simple input devices o tracker ball o magnetic ***** 18 of 28 Specialist input devices- function/PA/ +/- o OCR o OMR o Barcode reader o voice recognition o Biometrics 19 of 28 Output devices: printers > +/- o inkjet +cheap -ink expensive -slower +better quality -Ink smudges +quite o Laser +faster -expensive +ink lasts longer -lower quality +reliable 20 of 28 Monitors CTR: +large screen -lots of space LCD: +high definition +little space 21 of 28 Primary storage memory> store data needed to run 22 of 28 RAM( Random access memory) x volatile x temporary> programs/data stored before going to processor 23 of 28 ROM (read only memory) x non volatile x permenant fast memory 24 of 28 Printer buffer memory hold queue 25 of 28 secondary/backing storage *stores programs/docs *non-volatile 26 of 28 transfer rate speed data can be read off storage device 27 of 28 magnetic hard disk drive internal/external +high transfer rate +high storage -break easily 28 of 28
Comments
No comments have yet been made