Computing - Term 1 Cycle Test Flashcards

1
Q

What is an imput device?

A

A device that is used to give information to a device.

A hardware that sends data into a computer that sends data to the computer system from the outside world.

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2
Q

What is an output device?

A

A hardware that receives data from the computer system to the real world, representing it in some form for the user.

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3
Q

What is a storage device?

A

A hardware that save data so that it can be recalled and used again.

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3
Q

What are some examples of a output device?

A

Speaker
Monitor
Printer
Headphones
GPS devices
Projectors

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4
Q

What are some examples of a imput device?

A

Keyboard
Mouse
Controller
Microphone
Touch screen
Scanner
Joystick

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4
Q

What are some examples of a storage device?

A

SIM card
USB
SSD
Hard Drive
RAM
ROM
Pen drive
Magnetic Disk
Floppy disk

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5
Q

What is a motherboard?

A

Connects all the parts of the components.

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6
Q

What is a CPU?

A

Central Processing Unit

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7
Q

What is a RAM?

A

Store currently running instructions + Applications.

Short Term Memory

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8
Q

What is a Hard Disk Drive

A

Stores everything that has been saved to the storage for the long term storage.

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9
Q

What is BIOS?

A

Basic Imput Output System

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10
Q

What is an ALU?

A

Arithmetic Logic Unit.

It performs arithmetic calculation and makes logical decisions.

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11
Q

What is a CU?

A

Control Unit.

Sends signals to control how data moves around the CPU.

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12
Q

What is a Cache?

A

It provides fast access to frequently used instructions and data.

Personal storage for the CPU.

Temporary storage.

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13
Q

What is a register?

A

A type of computer memory used to quickly accept, store and transfer data and instructions that the CPU needs immediately.

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14
Q

What factors affect the CPU performance?

A

Clock speed

Cache size

Number of cores

15
Q

How does the clock speed affect the CPU performance?

A

The faster the clock speed, the faster the computer is able to run fetch-decode-execute cycles.

16
Q

How does the number of cores affect the CPU performance?

A

CPUs with multiple cores have more power to run multiple programs at the same time.

17
Q

How does the cache size affect the CPU performance?

A

The larger the cache size, the less time a processor has to wait for instructions to be fetched.

18
Q

What are the disadvantages of more cores?

A

Doubling the number of cores won’t double processing speed.

Cores need to communicate with each other, which takes this.

19
Q

What is ROM stand for?

A

Random Access Memory

20
Q

What is ROM stand for?

A

Read Only Memory

21
Q

What is is the does ROM have that RAM doesn’t have?

A

Read only memory

Non-volatile

Permeant data

Boot strap loader (BIOS)

Part of the operating system

22
Q

What is is the does ROM have that RAM doesn’t have?

A

Random access memory

Volatile

Temporary memory

Currently used applications

Data + Instructions

23
Q

What does the computer systems diagram look like?

A

Communication

Imput———->Processing, Primary Storage ———-> Output

                Secondary Storge