Flashcards
CP basics
Cards in this deck (19)
- 1What is an input device?An input device is a device which sends input onto a computer which could be files or it could navigate a computer like a mouse.
- 2What is an output deviceAn output device is a device that displays or inserts digital graphics such as a monitor.
- 3What is a storage device?A storage device is a device that allows you to store data and then retrieve that data later.
- 4What is the purpose of a power supply?The purpose of a power supply is to power the whole computer to keep it running.
- 5What is the purpose of the computer case?The purpose of the computer case is to Hold all the parts of a computer together so it is easier to put together and tidies it up plus it is safer to have it encased.
- 6What is the purpose of the motherboard?The motherboard sends messages to all of the components in a computer telling them what to do.
- 7What is the purpose of the Processor?The purpose of a processor is were all the processes are carried out.
- 8What is the purpose of the RAM?The purpose of the RAM is to store what the computer is currently running. It is volatile.
- 9What is the purpose of ROM?The purpose of ROM is to store the programme that boots up the computer. This is called the bootstrap loader.
- 10What is the purpose of the Hard Drive?The purpose of a Hard Drive is to store all your files such as documents, photos, programmes etc. it is non-volatile.
- 11What is a repetitive strain injury (RSI) and what causes them?Repetitive strain injury is when people have their hands and fingers in awkward positions or use them for long periods of time. It is a pain usually in the wrists and fingers.
- 12What is the cause of back injuries when using a computer?Back injuries are caused when on a computer because when the back is hunched to see the screen or over the keyboard it causes the back to hurt.
- 13What is eye strain and what is the cause?Eye strain is caused by staring at a screen for too long usually in low light, flickering screens or in glare
- 14By law, what do employers have to provide for their employees? (in regards to working with computers)Employees have to be provided with tiltable screens, anti-glare screen filters, adjustable chairs, foot supports, suitable lighting, workstations are not cramped, when working on a computer staff take frequent breaks, appropriate eye and eyesight tests by an optician
- 15What is the purpose of Binary?Binary is how a computer stores data
- 16How many bits are in a Binary number?there are 8 bits in a binary number
- 17How do you convert from Binary to Denary?To convert binary to Denary you need to have the
128, 64, 32, 16, 8, 4, 2, 1
in line with the binary number and if the number is 1 (true) then add it to all the other 1s and if it is 0 (false) don't add it. - 18How do you convert from Denary to Binary?To convert Denary to Binary you need to work out which of the
128, 64, 32, 16, 8, 4, 2, 1
would add together to equal that number then each of them numbers would be 1 and all the rest would be 0. - 19What devices do you need to connect to the internet?The four devices needed to connect to the internet are a PC/computer, a network interface card, a router and a modem.
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- Flashcards on CP basics, created by Ben Worsley on 26/09/2018.
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- Ben Worsley
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