Flashcards
revision 1
Flashcards do conjunto (17)
- 1What is an input device?An input device sends input to the computer.
- 2What is an output device?an output device shows the viewer what they want to see.
- 3What is a storage device?a storage device stores information, music, presentations, pictures, etc.
- 4Give an example of input, process and output.input=mouse
output=computer
storage=USB stick - 5What is the purpose of a power supply?the power supply sends electricity around the computer for it to work.
- 6What is the purpose of the computer case?The case of the computer holds everything together.
- 7What is the purpose of the motherboard?It sends messages to all of the components inside the computer.
- 8What is the purpose of the Processor?It carries all of the processes out.
- 9What is the purpose of the RAM?Is where the computer stores the current task that is being carried out.
- 10What is the purpose of ROM?Stores a program used to boot up the computer.
- 11What is the purpose of the Hard Drive?The hard drive is where all of your documents, pictures, programmes etc. are stored on the computer.
- 12What is a repetitive strain injury (RSI) and what causes them?damage to the fingers and wrists caused by repeated movements over a long period of time.
- 13What is the cause of back injuries when using a computer?Usually due to poor posture or sitting in an awkward position when using a computer.
- 14What is eye strain and what is the cause?Usually caused by staring at a computer screen for a long time. Particularly in poor light, in glare or with a flickering screen.
- 15By law, what do employers have to provide for their employees? (in regards to working with computers)tiltable screens, anti-glare screen filters,
appropriate eye and eyesight tests by an optician, adjustable chairs, foot supports, suitable lighting, workstations are not cramped and when working on a computer staff take frequent breaks. - 16What is the purpose of Binary?the purpose of binary is to convert numbers and letters into a coded form.
- 17How many bits are in a Binary number?
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- FlashCards sobre revision 1, criado por Isabel Tullett em 18-10-2018.
- Criado por
- Isabel Tullett
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