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Description
Flashcards by Archie Jeanes, updated more than 1 year ago
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Created by Archie Jeanes
about 6 years ago
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| Question | Answer |
| What is an input device? | An input device is a piece of computer hardware used for control. |
| What is an output device? | An output device is a something that might may be printed for real-life purpose. |
| What is the purpose of a power supply? | Provides power towards the computer |
| What is the purpose of the computer case? | It holds everything in the computer together. |
| What is the purpose of the motherboard? | It sends messages to all of the components inside the computer. |
| What is the purpose of the Processor? | Its where all the processes are carried out. |
| What is the purpose of the Processor? | It contains the current task being carried out. |
| What is the purpose of the Hard Drive? | The hard drive is where the data is stored. Where you store images or documents and also to retrieve digital information using more than 2 discs |
| What is a repetitive strain injury (RSI) and what causes them? | Usually damage to the fingers and wrists caused by repeated movements over a long period of time. |
| What 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. |
| What 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. |
| By law, what do employers have to provide for their employees? (in regards to working with computers) | It is now the law that any business makes sure the following are in place for it’s employees: 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 Task |
| What is the purpose of Binary? | The purpose of it is for the computer to store data. |
| How many bits are in a Binary number | It has 8 bits |
| Know how to convert from Binary to Denary | A set number and then add numbers up to create that particular number so the opposite of that for denary |
| What devices do you need to connect to the internet? | You need a PC, Network interface cards, modem and router. |
| What is the purpose of ROM? | Stores a program used to boot up the computer. This is called the bootstrap loader |
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