ocr computing

  • Created by: kshaw420
  • Created on: 26-01-18 14:53
what 3 things must a computer system be able to do
input,process,outut
1 of 30
give 3 examples of an input device
keyboard,mouse,webcam
2 of 30
give an example of a processing divice
sound card, graphics card
3 of 30
give 3 examples of an output device
speaker,monitor,plotter
4 of 30
what are 3 points as to why computer systems are inportant in the modern world
communicate and work with people worldwide save lives(eg999systms)improve quality of life allow secure data access
5 of 30
in computing,what is meant by reliability
how dependable a computer system is to carry out a job you have entrusted it with
6 of 30
what is a general purpose computer system
a computer system that can load and operate wirh various app e,g a laptop/desktop
7 of 30
what is a dedicated computer system
specilly produced systems that have one purpose,e,g,ticket vending machine
8 of 30
what is a control computer system
computer systems that control machinery their output is read by another machine rather than a human
9 of 30
what is a embedded system
computer system that are part of a larger system
10 of 30
give 2 examples of an embedded computer system
digital watches,satnaves,cameras,mp3 players,traffic lights,and controllers of machinery
11 of 30
what is an expert computer
computer systems that are designe to behave like a human experts in a particaular field
12 of 30
what is a management system
a computer system that brings together infromation from diffrent part for a copany for human managers to make an informed decision
13 of 30
why must computer system by reliable
so it has the abilit to save lives it could be the diffrence between life and death.e.g ATC and medical situations
14 of 30
define data integrity
data being sccurate and consistant throughout it life and reflicting what i means in the real world
15 of 30
how can data intergity compromised
human error,viruses,bugs in code hardware malfunctions and natural disasters
16 of 30
give 2 resons why software often has errors after being released
software is complex testing is expensive,testing is time consuming
17 of 30
what are de faco standards
they ensure something are the same across computers systems so they can be used by everone e.g qwerty keyborads
18 of 30
what are de jure standards
standerds that mush be adhered to by law they are universally accepted e,gASCII and PDF
19 of 30
what are propietary standerds
they are decided by the comany and ensure all their produce work seamlessy together
20 of 30
what are industry standerds
standerds set by recognised non-commercal organisation e.g ANSI
21 of 30
what are open standards
non dominated by any one particular group and are produced collaboratively so they can be used across many apps and pieces of hardware
22 of 30
give 2 examples of open standards
HTML.HTTP,WAP,WQL
23 of 30
give 3 ways evergy can be saved in a computer system
automatic standby,solid state storage (dosent rotate),modern screens tat are more efficient
24 of 30
why can computers be bad for the environment
contain toxins (cadmium ect),need electricity to run which usually means fossil fuels have been burned
25 of 30
give 3 points of data protection act
not tranfer data outside the eu,aloww people to access data for no more then £10correct information when requested dequate protection must be in place
26 of 30
what is the ALU
arithmetic and logic unit of the CPU,it dose the mathematical aspects of the F-D-E cycle
27 of 30
which is the basic achitecture that all computer systems use
von nuemann
28 of 30
where are data and instructions stored and how
RAM,as binary numbers
29 of 30
what is the control unit
it uses electrical siqnals to control the flow data through the CPU
30 of 30

Other cards in this set

Card 2

Front

give 3 examples of an input device

Back

keyboard,mouse,webcam

Card 3

Front

give an example of a processing divice

Back

Preview of the front of card 3

Card 4

Front

give 3 examples of an output device

Back

Preview of the front of card 4

Card 5

Front

what are 3 points as to why computer systems are inportant in the modern world

Back

Preview of the front of card 5
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Nathan Combrinck

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lol

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