Flashcards
study with doggies
Cards in this deck (19)
- 1What is an input device?Something that is needed to operate something. eg. scanner
- 2What is an output device?The result of an input device. eg. printer
- 3What is a storage device?Where storage, such as KB, MB and GB, are stored.
- 4What is the purpose of a power supply?To provide voltage to the computer, or motherboard.
- 5What is the purpose of a computer case?To protect the insides from falling out.
- 6What is the purpose of a motherboard?It includes the central processing unit (CPU), memory and connectors for input and output devices.
- 7What is the purpose of a processor?It is like the computers brain.
- 8What is the purpose of a RAM?It uses the processor to get information quickly.
- 9What is the purpose of a ROM?Stores a program used to boot up the computer. This is called the bootstrap loader.
- 10What is the purpose of a hard drive?It stores data.
- 11What is and/or causes RTI?It is damage to the wrist, and staring typing too long causes it.
- 12What is and/or causes back pains?It is when you put pressure on you back and when you sit in a chair for a long period.
- 13What is and/or what causes eye strain?It is damage to the eye, and staring at a screen too long causes it.
- 14By law, what do employers have to provide for their employees?They have to provide a regular eye test.
- 15What is the purpose of binary?It is text in the form of 1's and 0's.
- 16How many bits are in a binary number?8 bits. (1, 2, 4, 8, 16, 32, 64, 128, 256.)
- 17How do I convert binary to denary?By finding the parts of the 8 bit system to total the number. eg. 37 = 1 + 4 + 32 = 37
- 18How do I convert denary to binary?By adding parts of the 8 bit system to total the number. eg. 37 = 1 + 4 + 32
- 19What 4 devices are needed to use the internet?Copper, Green cabinets, Fibre Optic and ISP.
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- Flashcards on study with doggies, created by Hanif Heseltine on 13/12/2017.
- Created by
- Hanif Heseltine · Dec 2017
- Updated
- Jan 8, 2018
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