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GCSE ICT > Input and Output Devices > Flashcards

Input and Output Devices Flashcards

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1
Q

What layout does a standard keyboard use?

A

QWERTY

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2
Q

What does EPOS stand for?

A

Electronic Point Of Sales

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3
Q

What does ATM stand for?

A

Automatic Teller Machine

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4
Q

Give an example of a keyboard that is designed for a specific application.

A

ATM

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5
Q

What is a concept keyboard?

A

A keyboard that has keys with pictures or words which are programmed to carry out specific instructions.

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6
Q

Give advantages of a keyboard.

A

Need little training, a skilled typist can enter data very quickly and often computers come with a keyboard supplied

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7
Q

Give disadvantages of a keyboard

A

It is prone to human error since all data has to be keyed in, if you cannot touch type it can be time consuming to enter data and excessive use can lead to RSI.

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8
Q

What does RSI stand for?

A

Repetitive Strain Injury

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9
Q

What can a mouse be described as?

A

A ‘pointing device’

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10
Q

Name 3 types of mouse

A

Infrared, mouse ball and wireless

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11
Q

Give advantages of a mouse.

A

Easy to use, inexpensive and designed to fit under the human hand.

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12
Q

State one disadvantage of a mouse.

A

Experienced users may find using a mouse slow, compared to using hot keys such as Crtl + P to print

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13
Q

Give a use for a joystick

A

Playing flight simulators

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14
Q

What does a joystick do as you manoeuvre it?

A

It senses movements and converts them into coordinates.

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15
Q

Apart from the lever, describe the other functionality that a joystick has.

A

It has a range of buttons that can carry out specific, pre-programmed actions

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16
Q

Give one advantage of a joystick

A

Provides a better experience when playing a flight simulator

17
Q

Give one disadvantage of a joystick

A

Can break easily, if too much force is used to manoeuvre it

18
Q

How does a tracker pad work?

A

It senses touch from a finger (it is touch sensitive)

19
Q

What is a tracker pad an alternative to?

A

A mouse for a laptop

20
Q

Give one advantage of a tracker pad

A

Useful for laptops when using a mouse is not practical

21
Q

Give two disadvantages of a tracker pad

A

Cannot be used while wearing gloves, for example in a sterilised environment, and it may not always accurately interpret a user’s movement.

22
Q

What type of screen is a touch screen more expensive than?

A

An LCD screen

23
Q

State one use of a touch screen.

A

In a fast food restaurant for inputting a customer’s order

24
Q

What is the main advantage of using a touch screen?

A

No additional hardware such as a keyboard or mouse is required

25
Q

Give an advantage of a microphone

A

Voice recognition is useful to users with limited mobility, who can use their voice instead of a keyboard.

26
Q

Give two disadvantages of a microphone

A

Background noise can interfere with spoken words, making it harder to use voice recognition applications. Software can also interpret spoken words incorrectly.

27
Q

What does OCR stand for?

A

Optical Character Recognition

28
Q

What input device uses OCR?

A

Scanner

29
Q

What does OCR do?

A

It converts written words on paper into text that can be edited on a word processor.

30
Q

Name the type of scanner commonly used in schools

A

Flatbed scanner

31
Q

Give two advantages of a flatbed scanner

A

Very accurate and can produce high quality images, and once digitised, images can be enhanced with a graphics application

32
Q

Give two disadvantages of a flatbed scanner

A

Images lose some quality during the scanning and digitising process, and images can take up a lot of memory space.

33
Q

Name two components of a digital camera

A

A memory card and LCD screen

34
Q

What is a megapixel?

A

One million pixels

35
Q

Give two advantages of a digital camera.

A

Images taken can be viewed on the LCD immediately, and images can be edited and enlarged

36
Q

Give two disadvantages of a digital camera.

A

They are generally more expensive than cameras which use film, and images often have to be compressed to avoid using too much memory.

GCSE ICT (27 decks)

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