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IT > Hardware > Flashcards

Hardware Flashcards

1
Q

What is input?

A

Computer receives instructions - what to do + what data to work on

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2
Q

What gives the computer input?

A

User

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3
Q

How does the user give the computer input?

A

Keyboard and mouse

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4
Q

What is processing?

A

Works on data - part of computer does all processing is the CPU

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5
Q

What is storage?

A

Permanent record of our work

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6
Q

What does storage receive?

A

Output and provide input for computer

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7
Q

How is storage made?

A

Internal or portable

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8
Q

How can computers communicate?

A

They are linked to each other

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9
Q

How can computers communicate?

A

They are linked to each other

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10
Q

What can communication provide for?

A

input and output

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11
Q

What is output?

A

Computer gives feedback on the results of its processing

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12
Q

Give examples of computer output

A

Pictures, text on screen, sound, printing on paper

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13
Q

What can instructions be?

A

Program, command, user responses

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14
Q

What are programs?

A

Set of instructions loaded into memory when you run the program

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15
Q

What are commands?

A

Given by user

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16
Q

What is user responses?

A

To a question ‘asked’ by a program

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17
Q

What is a keyboard?

A

Keyboard is the most commonly used input device.

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18
Q

F1

A

Help

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19
Q

Esc

A

Cancel choices

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20
Q

Windows key (),<E> File Explorer</E>

A

File explorer

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21
Q

<><D></D>

A

Desktop

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22
Q

What is the print screen?

A

‘Screen capture’ is copied as an image to the clipboard

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23
Q

What is a clipboard?

A

an area in memory where text and other objects that have been copied are temporarily stored

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24
Q

Mouse click

A

Select an option or an object.

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25
Q

Mouse double-click

A

Start a program or open a file or folder.

26
Q

Mouse right-click

A

Open a pop-up menu that gives you options or actions.

27
Q

Mouse drag

A

Select and drag an object.

28
Q

Mouse scroll

A

Use the mouse wheel to scroll in lists, long documents or web pages.

29
Q

Keyboard and mouse combinations

A

Pressing and holding Shift, Alt and Ctrl can change the meaning of a mouse click.

30
Q

What are connection devices?

A

Ports and plug and play

31
Q

What are ports?

A

Sockets used to connect peripherals to the computer

32
Q

What is plug and play?

A

Operating system automatically detects and configures a device plugged into the computer, so the device can be used almost immediately.

33
Q

What is a wireless keyboard and mouse?

A

Use short range radio waves (usually Bluetooth) to communicate with the computer.

34
Q

What are advantages of wireless devices?

A

Less clutter (as no cables)
Wider range of movement

35
Q

What are disadvantages of wireless devices?

A

Require batteries (to send wireless signal)
Slightly more expensive than wired devices
Can easily be removed, so easily stolen
Can sometimes be interference with the wireless signal

36
Q

What is a wireless adapter needed for?

A

A wireless adapter has to be attached to the computer to receive signals from the device. All wireless devices need power in order to transmit a signal and so they have to contain some form of battery.

37
Q

How is a monitor measured?

A

Measured diagonally in inches

38
Q

What is resolution?

A

Number of pixels (small dots) used to form the screen image

39
Q

What is a graphics card?

A

Image is generated by specialised circuitry

40
Q

What is a separate, high end graphic card used for?

A

Graphics intensive tasks such as video editing and games.

41
Q

What is a response time?

A

The time it takes to change a pixel from one colour to another

42
Q

What is response time measured in?

A

Measured in milliseconds.

43
Q

What are the connecting monitors?

A

VGA (old standard)
HDMI
DisplayPort
Thunderbolt
USB (for specialised monitor)

44
Q

What are inkjet printers?

A

spray microscopic dots of ink onto
the paper

45
Q

What are laser printers?

A

Work like a photo-copier

46
Q

Which printer is more expensive to buy?

A

Laser printer

47
Q

Which printer is more expensive to run?

A

Inkjet - laser cheaper for large volumes

48
Q

Which printer has good quality prints?

A

Inkjet

49
Q

Which printer is faster?

A

Laser

50
Q

Does memory or storage have a larger capacity?

A

Storage has a much larger capacity than memory - keep all your data and programs

51
Q

How many bytes is one kilobyte?

A

1024 byte

52
Q

How many bytes is one megabyte?

A

1024kb

53
Q

How many bytes is one gigabyte?

A

1024 mb

54
Q

How many bytes is one terabyte?

A

1024 gb

55
Q

What are the two types of hard drives?

A

In case and external/portable

56
Q

What is a hard drive in case?

A

Stores all programs and data
GB or TB

57
Q

What is an external hard drive?

A

USB connected
Gets power from PC

58
Q

What are flash drives?

A

Use electronic memory to store data
powered via USB port

59
Q

How do you plug in a flash drive?

A

Into USB port - Removable Disk

60
Q

What is a health concern?

A

RSI: Repetitive Strain Injury

61
Q

What can help prevent RSI?

A

Using ergonomically designed keyboards

62
Q

What is Ergonomics?

A

Study and design of the workplace and the equipment used in the workplace for the comfort and safety of people in their work environments.

IT (11 decks)

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