Flashcards

COMPUTIONG

vrish v English 6 cards

Cards in this deck (6)

1an output deviceAn output device is a piece of computer hardware used display or output data which has been processed or stored in a computer.
Printer, Speaker.
2an input deviceAn input device is anything can be used to enter data into a computer.
Keyboard,
3a Storage deviceA storage device is used to permanently record or store data.
CD, Hard Drive.
4Fetch – Decode – Execute CycleComputer has a list of instructions in memory to carry out.
CPU Fetches top instruction from the list
Instructions is passed to Decoder to interpret
Decoder passes on the instruction
Instruction is Executed or carried out
CPU Fetches top instruction from the list…
5Processor SpeedOne cycle per second = 1 Hertz (Hz) = 1 instruction carried out each second
1 Kilohertz (KHz) = 1024 cycles per second
1 Megahertz (MHz) = 1,048,576 cycles per second
1 Gigahertz (GHz) = 1,073,741,824 cycles per second (Approximately 1 Billion!)
6ROM AND RAMRAM stands for Random Access Memory
ROM stands for Read Only Memory