Flashcards
FLASHCARDS 2
Flashcards do conjunto (18)
- 1What is an input device?An input device is any hardware device that sends data to a computer, allowing you to interact with and control the computer.
- 2What is an output device?An output device is any device used to send data from a computer to another device or user. Most computer data output that is meant for humans is in the form of audio or video. Thus, most output devices used by humans are in these categories. Examples include monitors, projectors, speakers, headphones and printers.
- 3What is a storage device?a piece of computer equipment on which information can be stored.
- 4What is an example of a storage, input and output device?Input: Mouse
Output: Monitor
Storage: USB - 5What is the purpose of a power supply?Flows electricity around the computer, like a heart flow blood around our bodies.
- 6What is the purpose of the computer case?Holds everything together like a skeleton keeps your body/ body parts together.
- 7What is the purpose of the motherboard?Sends messages to all of the components inside the computer like nerves send signal to different parts of our human bodies.
- 8What is the purpose of the Processor?This is where all processes are carried out, like our brains carry out our thoughts.
- 9What is the purpose of the RAM?This is where the computer stores the current task. It is like a short-term memory e.g when you are thinking about what you are about to say or what you have just eaten.
- 10What is the purpose of ROM?Stores a program used to boot up the computer. This is called the bootstrap loader.
- 11What is the purpose of the Hard Drive?Where all your documents, pictures programs etc, are stored on your computer, like the long term memories in the human brain.
- 12What is a repetitive strain injury (RTI) and what causes them?Damaging wrists and fingers and you can help it by using wrist rests, by sitting in the correct posture and by taking a 5 minute break every hour.
- 13What is the cause of back injuries when using a computer?Awkward/ wrong position or posture and you can help it by sitting on a fully adjustable chair, footrests and tilting the screen.
- 14What is eye strain and what is the cause?Flickering screens, glaring at unsafe screens and you can help it by using screen filters, no flickering screens, regular break and suitable lighting.
- 15By law, what do employers have to provide for their employees? (in regards to working with computers)Tiltable Screens,
Anti-glare Screen Filters,
Adjustable Chairs,
Foot Supports,
Suitable Lighting and
Uncrowded Workstations - 16What is the purpose of Binary?Computers communicate, store and share data using 1's and 0's.
- 17How many bits are in a Binary number?8 Bits.
- 18What 4 devices are needed to connect to the internet?Computer,
Telephone,
Internet Service Provider,
Modem or Router
Informações
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- FlashCards sobre FLASHCARDS 2, criado por Uma Uddin em 19-12-2017.
- Criado por
- Uma Uddin
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