Flashcards
pc basics
Flashcards do conjunto (15)
- 1what is an input device?A device that is used to send dater to a computer.
- 2What is an output device?A device that is used to send dater from a computer.
- 3What is a storage device?A piece of equipment on which information is stored on
- 4Give an example of input, process and outputinput device is a mouse and a output is a monitor. process device is a motherboard.
- 5What is the purpose of a power supply?The power from a wall outlet is high-voltage AC. The type of power computers need is low-voltage DC. All computer parts (the electronic chips on the motherboard)
- 6What is the purpose of the computer case?The primary function of the computer system unit is to hold all the other components together and protect the sensitive electronic parts from the outside elements.
- 7What is the purpose of the 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
- 8What is the purpose of the Processor?The most important component of a computer is the central processing unit, or CPU, also called the processor.
- 9What is the purpose of the RAM?RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device's processor.
- 10What is the purpose of ROM?ROM stands for read-only memory. It's used to store the start-up instructions for a computer, also known as the firmware. Most modern computers use flash-based ROM.
- 11What is the purpose of the Hard Drive?The most important characteristic of a hard drive is how much data the hard drive can store, referred to as the storage capacity. A typical internal hard drive for a new desktop computer or laptop has a storage capacity of several hundred gigabytes (GB) up to one terabyte (TB).
- 12What is a repetitive strain injury (RSI) and what causes them?Repetitive strain injury (RSI) is a general term used to describe the pain felt in muscles, nerves and tendons caused by repetitive movement and overuse. It's also known as work-related upper limb disorder, or non-specific upper limb pain.
- 13What is the cause of back injuries when using a computer?Posture-related injuries from computer use. Back and neck pain, headaches, and shoulder and arm pain are common computer-related injuries. Such muscle and joint problems can be caused or made worse by poor workstation (desk) design, bad posture and sitting for long periods of time.
- 14What is eye strain and what is the cause?In some cases, an underlying eye problem, such as eye muscle imbalance or uncorrected vision, can cause or worsen computer eyestrain. Some other factors that can make the condition worse include: Glare on your screen. Poor posture.
- 15By law, what do employers have to provide for their employees?
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- FlashCards sobre pc basics, criado por Daniya Ahmed em 04-10-2018.
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- Daniya Ahmed
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