Flashcards
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Flashcards do conjunto (18)
- 1What is an input device?An input device is something that can insert data.
- 2What is an output device?An output device is something that gives data.
- 3What is a storage device?A storage device is something that stores data.
- 4Give an example of an input, process and output.Input: Keyboard
Output: CD
Process: - 5What is the purpose of a power supply?The power supply gives your device electricity so that the device can function.
- 6What is the purpose of a case?The case holds everything together.
- 7What is the purpose of a motherboard?The motherboard send messages to all of the components inside the computer.
- 8What is the purpose of a processor?Its were all the processes are carried out.
- 9What is the purpose of RAM?Stores a program used to boot up the computer. This is called the bootstrap loader
- 10What is the purpose of the hard drive?The hard drive is where all of your documents, pictures, programs etc. are stored in the computer.
- 11What is a repetitive strain injury and what causes them?Damage to fingers usually caused and repeated from typing too much.
- 12What is the cause of back problems when using a computer?Due to poor posture or sitting in awkward positions when using a computer.
- 13What is eye strain and what is the cause?Caused by staring at a computer screen for a long period of time, particularly in poor light.
- 14By law, what do employers have to provide for their employees? (in regards to working with computers)Tillable screens, anti-glare screen filters, adjustable chairs, foot supports, suitable lighting, work stations are not cramped.
- 15What is the purpose of Binary?Computers communicate, store and share data using 1`s and 0`s
- 16How many bits are in a Binary number?8
- 17How to convert binary to denary?If your number is 10101001 you will have to do an 8 numbered grid (1 2 4 8 16 32 64 128) and then place your binary number under the normal numbers. When you have that add all the numbers above one.
- 18How to covert denary to binary?Its like converting binary to denary but opposite.
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- FlashCards sobre Sem título, criado por Tahreem Javed em 19-12-2017.
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- Tahreem Javed
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