Flashcards
flash cards
Cards in this deck (22)
- 1components of a computermother board c.p.u hard drive power supply ram
- 2function of a ramUsed to store program instruction and data that are currently being used by the processor it is called the main memory
- 3function of the mother boardIs a circuit board that connects the CPU to the memory and all the other hardware.
holds processor and ram - 4function of cpuThe key purpose of a processor is to process data by executing instructions also it coordinates other parts of a computer
- 5function of hard disksIs non-volatile meaning all data and files stored on it are not lots when the power is turned off also provides secondary storage
- 6function of a BIOSis the program a personal computer's microprocessor uses to get the computer system started after you turn it on. It also manages data flow between the computer's operating system and attached devices
- 7purpose of cacheit is to store program instructions that are frequently re-referenced by software during operation
- 8purpose of romIs non-volatile memory that retains data even when the power is switched off.
- 9purpose of a ramstores programs that are already on
- 10differences between RAM and ROMROM can hold data without power and RAM cannot. Essentially, ROM is meant for permanent storage, and RAM is for temporary storage
- 11what is clock speedspeed at which a processor operates and is measured in hertz
- 12what would increasing clock speed do to your computerit will make your computer faster
- 13the steps in fetch execute cycleexecute fetch decode
- 14what is an example of an input device and what do they doinput data e.g. keyboard
- 15what is an example of an output device and what do they dooutput data e.g. speakers
- 16what is secondary storage All examplesan extra space for storage
magnetic
optical
solid state - 17examples of magnetic,solid state and optical secondary storagemagnetic = hard disk
optical = dvds/cds
solid state = memory cards and usb - 18why do we need secondary storageso you have more amount of data to store
- 19what factors might you consider when buying secondary storagestorage space
cost
portability
speed
reliability - 20what does quad core and dual core mean4 core processors
2 core processors - 21what does more then one core doyou can execute more then one instruction in the same time
- 22—
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- Flashcards on flash cards, created by Tohib Hussain on 19/09/2018.
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- Tohib Hussain
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