11753359
Description
Flashcards by Hanif Heseltine, updated more than 1 year ago
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Created by Hanif Heseltine
over 6 years ago
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| Question | Answer |
| What is an input device? | Something that is needed to operate something. eg. scanner |
| What is an output device? | The result of an input device. eg. printer |
| What is a storage device? | Where storage, such as KB, MB and GB, are stored. |
| What is the purpose of a power supply? | To provide voltage to the computer, or motherboard. |
| What is the purpose of a computer case? | To protect the insides from falling out. |
| What is the purpose of a motherboard? | It includes the central processing unit (CPU), memory and connectors for input and output devices. |
| What is the purpose of a processor? | It is like the computers brain. |
| What is the purpose of a RAM? | It uses the processor to get information quickly. |
| What is the purpose of a ROM? | Stores a program used to boot up the computer. This is called the bootstrap loader. |
| What is the purpose of a hard drive? | It stores data. |
| What is and/or causes RTI? | It is damage to the wrist, and staring typing too long causes it. |
| What 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. |
| What is and/or what causes eye strain? | It is damage to the eye, and staring at a screen too long causes it. |
| By law, what do employers have to provide for their employees? | They have to provide a regular eye test. |
| What is the purpose of binary? | It is text in the form of 1's and 0's. |
| How many bits are in a binary number? | 8 bits. (1, 2, 4, 8, 16, 32, 64, 128, 256.) |
| How 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 |
| How do I convert denary to binary? | By adding parts of the 8 bit system to total the number. eg. 37 = 1 + 4 + 32 |
| What 4 devices are needed to use the internet? | Copper, Green cabinets, Fibre Optic and ISP. |
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