Karteikarten
Computer Hardware
Karten in diesem Stapel (20)
- 1What is a computer system?A computer system applies to any equipment which uses computer technology.
- 2What is hardware?Hardware is the physical parts of a computer system that you can touch
- 3What is software?Software is the programs and apps that run on computer systems and follow instructions to perform a task.
- 4What is a input device?Any device that allows you to input data into a computer system.
- 5what is a output device?A output device is a device used by a computer system to output information.
- 6What is the four box model?
- 7What are some examples of input and output devices?Input: Motion Sensor, Smoke Sensors, Camera and Volume dial.
Output: Light, Touch Screen and Speaker. - 8What is the five box model?
- 9What is an embedded system?Any device that includes a computer but it is not its self a general purpose computer, which includes hardware and soft ware and is expected to run without human intervention.
- 10What is reliability?Consistently good in quality of performance; able to be trusted.
- 11What is the acronym for the units of storage and what units of storage are they?Big- Bit
Naughty- Nibble
Boys- Byte
Kicked- Kilobyte
My- Megabyte
Granny- Gigabyte
Twice- Terabyte - 12What is virtual memory?Virtual memory is when a computer uses a section of the hard disk to supplement the main memory.
- 13What does RAM stand for?Random Access Memory
- 14What does ROM stand for?Read Only Memory
- 15What does BIOs stand for?Basic Input Output System
- 16What is cache memory?Cache is a type of RAM, it is the fastest type of RAM which allows quick access to data. Cache memory is volatile so when it shuts down the data is lost. Cache is also closer to the main memory so it is quicker to get it. Also if it has done it before it will do it quicker than if it has never seen it before. The memory is only temporarily stored in cache before its lost.
- 17What does CPU stand for?Central Processing Unit.
- 18What is the fetch execute cycle?1. The processor fetches an instruction from the memory
2. The instruction is decoded
3. The processor executes(runs) that instruction - 19What is clock speed?Clock speed is the rate which instructions are carried out. It is measured in Hz (the number of times the clock ticks per second) Every tick 1 instruction, so 1GHz means that a thousand million instructions are carried out per second.
- 20What is dual and quad core?Dual and Quad core is when the computer has 2 or 4 CPUs.