Flashcards
pc basics
Flashcards do conjunto (15)
- 1What is the purpose of the RAM?Random Access Memory (RAM) is where the computer stores the current task that is being carried out. This is like your short term memory when you are thinking about what you are about to say of have just eaten.
- 2What is the purpose of the Processor?The processor is like your brain, it’s where all the processes are carried out like thoughts in your head.
- 3What is the purpose of a power supply?The type of power computers need is low-voltage DC. All computer parts (the electronic chips on the motherboard and adaptors, the electronics on the drives, and the motors in the hard drive and optical drive) need DC power to operate.
- 4What is the purpose of the computer case?It contains the main components of a computer.
- 5What 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, including the central processing unit (CPU), memory and connectors for input and output devices.
- 6what is he purpose of ROM ?Stores a program used to boot up the computer.This is called a bootstrap loader
- 7What 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)
- 8what is the 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.
- 9what 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.
- 10what is eye strain and what is the cause?Eye strain is a symptom, not an eye disease. Eye strain occurs when your eyes get tired from intense use, such as driving a car for extended periods, reading, or working at the computer. If you have any eye discomfort caused by looking at something for a long time, you can call it eye strain.
- 11By law what do employers have to provide for their employees?It is an employer's duty to protect the health, safety and welfare of their employees and other people who might be affected by their business. Employers must do whatever is reasonably practicable to achieve this. ... Employers have duties under health and safety law to assess risks in the workplace.
- 12what is the purpose of binary?A binary code represents text, computer processor instructions, or any other data using a two-symbol system. The two-symbol system used is often the binary number system's 0 and 1. The binary code assigns a pattern of binary digits, also known as bits, to each character, instruction, etc.
- 13how many bits are in a binary code?Binary-coded decimal, or BCD, is a binary encoded representation of integer values that uses a 4-bit nibble to encode decimal digits. Four binary bits can encode up to 16 distinct values; but, in BCD-encoded numbers, only the first ten values in each nibble are legal, and encode the decimal digits zero, through nine.
- 14What devices do you need to connect to the internet?a computer.
telephone line (cable being the exception)
modem and/or router.
an ISP (Internet Service Provider)
Web browser, eg Internet Explorer, Firefox, Chrome, Safari, Opera etc. - 15—
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- FlashCards sobre pc basics, criado por Subkhan Ditta em 28-09-2018.
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- Subkhan Ditta
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