Flashcards
pc basics flashcards
Cards in this deck (17)
- 1what is an input device?an input device is any device that sends data to a computer, allowing you to control the computer. for example a keyboard.
- 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 is in the form of audio or video.
- 3what is a storage device?a storage device is a device that can store data for when you need it for example a memory card.
- 4what is the purpose of the power supply?a power supply is an component that supplies components in a computer with power
- 5what is the purpose of the computer case?the computer case is there to protect your computer and to keep all of the components of your computer together.
- 6what is the purpose of the motherboard?It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices.
- 7what is the purpose of the processor?the processor acts as the computer's brain, running programs and sending and receiving signals to attached devices to keep the computer running.
- 8what is the purpose of the RAM?RAM (random access memory) is where, application programs and data in current use are kept so they can be quickly reached by the device's processor.
- 9what is the purpose of ROM?Stores a program used to boot up the computer. This is called the bootstrap loader
- 10what is the purpose of the Hard Drive?the hard drive is where all of your documents,pictures,programs are stored on your computer
- 11what is repetitive strain injury and how is is caused?it is usually damage to the fingers and wrists caused by repeated movement over a long period of time
- 12what is the cause of back injuries when using a computer?it is caused by having poor posture an sitting in an awkward position.
- 13what is eye strain and what is the cause?where your eyes are damaged or hurt and is usually caused by staring at a screen for a long time especially in poor light, in glare or a flickering screen
- 14by law, what do employers have to provide for their employees? (in regards to working with computers)they have to provide anti-glare screen filters, adjustable chairs, foot supports, suitable lighting, workstations are not cramped and staff get to take frequent breaks when working on a computer
- 15what is the purpose of Binary?computers store , communicate and share data using 1's and 0's
- 16What 4 devices are needed to connect to the internet?telephone line
modem or router.
an Internet Service Provider
Web browser, - 17how many bits are in a binary number?8
Information
- Description
- for example input and output
- Created by
- Emily Whitley · Dec 2017
- Updated
- Jan 9, 2018
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