C1 Flashcards

1
Q

What is an input device?

A

A device that allows data to be entered into a computer system
EG: mouse

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2
Q

What is an output device?

A

A device that allows data to be transferred into a physical readable form
EG: speaker

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3
Q

What is a biometric device?

A

A device that uses human characteristics as a security mechanism
EG: fingerprint

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4
Q

What is a processors function?

A

To manage the function of a computer system by processing data and instructions

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5
Q

What is a motherbord?

A

The main circuitboard
CPU, ROM found there

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6
Q

What is the function of a power supplier unit?

A

To convert electricity to direct current so the computer can use it

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7
Q

What 2 types is memory split into?
And what do they mean?

A

Volatile and non volatile
Volatile: storage is temporary
Non volatile: storage saves (long term) even when off

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8
Q

What is random access memory (RAM) ?

A

It is a volatile storage that stores all programs that are currently running. Also stores part of the os so it can be accessed by the cpu

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9
Q

What is read only memory (ROM) ?

A

A non volatile storage that cannot be changed. It stores the boot program for the computer when it is turnt on.

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10
Q

What is cache memory?

A

A volatile storage that stores data that is frequently accessed.
EG: if you use youtube regularly this will be stored so you can easily access it on your computer

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11
Q

What is optical storage?

A

A form of secondary storage that uses a laser to project beams of light onto a disk, allowing to read data from a CD, DVD, etc

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12
Q

What is cloud storage?

A

A form of secondary storage where data is stored on large servers owned by hosting companies like google. They are responsible for keeping this data.

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13
Q

What is a solid state storage?

A

A form of secondary storage that replaces hard disk drives. EG: USB

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