PC Basics Revision

Pregunta	Respuesta
How can you stop Repetitive Strain Injury's?	You can get wrist rests, have the correct posture and have a 5 minute break every hour.
How can you prevent Back Problems?	You would need fully adjustable chairs, footrests and screens that can be tilted.
How can you prevent eye problems when using a computer?	You would need screen filters, screens that don't flicker, you would have to take regular breaks and you would need suitable lighting and blinds fitted on windows.
Name some input devices.	A keyboard, a webcam, a microphone and a mouse.
Name some output devices.	A monitor, a speaker, a printer and a projector.
Name some storage devices.	A USB stick, a CD and an SD card.
What is needed to set up wireless internet at home?	You would need an ISP (Internet Service Provider), a modem, a wireless router and a computer.
How many bits are there in a binary number?	The answer is 8.
What is the purpose of a hard drive?	The hard drive is a component that stores data.
What is the purpose of a motherboard?	A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer.
What is the purpose of the computer case?	A case protects the motherboard from too much dust, from getting bumped and from getting things spilled on it. It also protects it from overheating with its inbuilt fan.
What is an input device?	An input device is any hardware device that sends data to a computer, allowing you to interact with and control it.
What is an output device?	An output device is any device used to send data from a computer to another device or user.
What is a storage device?	A storage device is a piece of computer equipment on which information can be stored.
What is the purpose of the power supply?	A power supply is a hardware component that supplies power to an electrical device.
What is the purpose of the processor?	A processor is a small chip that resides in computers and other electronic devices. Its basic job is to receive input and provide the appropriate output.
What is the purpose of the RAM?	The RAM is where the computer stores the current task that is being carried out.
What is the purpose of ROM?	ROM is memory containing hardwired instructions that the computer uses when it boots up, before the system software loads.
By law, what do employers have to provide for their employees?	They have to provide them with tiltable screens, anti glare screen filters, foot supports and adjustable chairs.

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