Computer Systems

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What is a computer system?
It is a combination of components to process and store data. It comprises at least one input device, a processing unit, an output device, and may contain a communication
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What is a computer system capable of?
Data input, Data processing, Data output , storage and transmission
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What is computer hardware?
The physical parts that can be touched and seen
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What is computer software?
Programs made up of sequences of instructions that tell the hardware what to do.
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What are storage, processing and communications Device?
storage device includes a RAM which is for short term memory and ROM for long term memory.Processing devices refers to the CPU which carries out program instructions. Communication device deals with transfer of data with routers, modems, WIFI cards
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what is Peripheral Devices?
These are hardware devices which fit into any one device categorie but are external to the main body of the computer. They are typically connected by cables or wireless, examples are mice, keyboards ans printers
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What are the ethical issues of using computers?
Employment- computer systems often either replace jobs directly or lead to improvements which lead to job losses
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What are the environmental issues?
use of resource - the making of a PC requires 10 times it weight in chemicals and fossils. Health risks- discarded computer equipment is either dumped in landfill sites or recycled in poorly managed facilities in developing countries
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What are the legal issues?
The data protection act, The computer misuse act and the copyright, designs and patents act
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Other cards in this set

Card 2

Front

Data input, Data processing, Data output , storage and transmission

Back

What is a computer system capable of?

Card 3

Front

The physical parts that can be touched and seen

Back

Preview of the back of card 3

Card 4

Front

Programs made up of sequences of instructions that tell the hardware what to do.

Back

Preview of the back of card 4

Card 5

Front

storage device includes a RAM which is for short term memory and ROM for long term memory.Processing devices refers to the CPU which carries out program instructions. Communication device deals with transfer of data with routers, modems, WIFI cards

Back

Preview of the back of card 5
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