Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CIE iGCSE ICT > Unit 2 Input Devices > Flashcards

Unit 2 Input Devices Flashcards

1
Q

What is the definition of an input device?

A

Hardware that allows data to be entered into a computer.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How many types of input devices are there?

A

2 - manual input devices and direct input devices.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the definition of a manual input device?

A

A device that allows data to be entered into a computer by hand.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Give 5 examples of manual input devices.

A

keyboard, numeric keyboard, pointing devices, remote control, joystick, touch screen, scanner, graphics tablet, light pen, microphone, digital camera, web camera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are keyboards used for?

A

To enter data into applications e.g. word processing applications such as Word.
To use enter commands e.g. keyboard short cuts such as CTRL + P to print.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the advantages of using a keyboard?

A

Enables fast entry of text into documents.
Very easy to use (you just press the keys)
Information instantly appears on the screen so you can check quickly that what you entered is correct.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the disadvantages of using a keyboard?

A

People with wrist or hand problems can find a keyboard painful to use.
Keyboards are quite large and can take up a lot of desk space.
Entering data is slow compared with other methods.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are numeric keypads used for?

A

Entering numbers into a computer system.
Some numeric keypads allow you to enter simple text and symbols.
Uses of numeric keypads include: ATM machines, telephones, chip and pin devices.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the advantages of using a numeric keypad?

A

Faster than using a QWERTY keyboard.

They are small so they can fit easily on smaller devices e.g. a phone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the disadvantages of using a numeric keypad?

A

People with large hands can find them hard to use.

Difficult to enter text information.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are pointing devices?

A

Pieces of hardware that are used to control a pointer or curser on a screen.
Frequently used with GUI
Used to input commands by selecting icons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 3 main types of pointing devices?

A

Mouse
Touchpad
Trackerball

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How many types of mice are there?

A

2
ball mouse - uses a ball under the mouse to detect movement
optical mouse - uses reflected light to detect movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the uses of a mouse?

A
  1. opening, closing, maximising and minimising programmes and files
  2. Moving, grouping and deleting files
  3. Selecting icons and moving them around the page
  4. Editing images
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the advantages of using a mouse?

A

Faster to select icons
Very easy to move pointer
Small and don’t take up much space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the disadvantages of using a mouse?

A

People with wrist problems may find them painful to use
Dirt can affect accuracy
Need a flat surface to work on

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are touchpads used for?

A

Replacement for a mouse - especially in laptops

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the advantages of using a touchpad?

A

easier than using a keyboard
built into laptops
can be used even when there is no flat surface
don’t get clogged with dirt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the disadvantages of using a touchpad?

A

more difficult to control than a mouse
can be painful to use for people with wrist problems
drop and drag can be more difficult to perform

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are trackerballs?

A

similar to mice but the ball is on the top of the device rather than the bottom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the uses of trackerballs?

A

Used as an alternative to a mouse

Used in arcade gaming machines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are the advantages of trackerballs?

A

People with wrist problems can still use them
More accurate than touchpads
Can be used when no flat surface is available
No limit on ball travel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What are the disadvantages of trackerballs?

A

More expensive than mice

More difficult to learn how to use than a mouse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What are remote controls used for?

A

Controlling other devices using infra-red signals e.g.

  • changing the tv channel
  • increasing/decreasing volume on a music player
  • selecting a different chapter on a dvd player
  • operating cranes with heavy
  • activating explosives in demolition
  • operating robot arms in hazardous chemical plants
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What are the advantages of using remote controls?

A

Devices can be operated without having to go up to them - helpful for people with disabilities
Can operate devices in unsafe environments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What are the disadvantages of using remote controls?

A

People with limited hand movement can find them difficult to use
The infra red signal between remote and device can become blocked

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the function of a joystick?

A

To control a pointer on a screen (similar to a mouse)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What are the uses of a joystick?

A

To control a pointer on a screen -
the handle moves the pointer
the buttons allow us to select or ‘click stuff’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What are joysticks used for?

A

video games
industrial machinery
simulators

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What are the advantages of joysticks?

A

easier to control
simple to use and get used to
disabled people might be able to use them more easily

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What are the disadvantages to joysticks?

A

Not as accurate as a mouse
Can be painful for people with wrist/hand issues
Difficult to enter text

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What is the function of a touch screen?

A

Input commands into a computer by touching or pressing buttons/icons on the screen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What are the uses of a touch screen?

A 
Mobile/smart phones
PDAs
Public information systems
Interactive whiteboards
Multiple choice tests
34
Q

What are the advantages of using a touch screen?

A

fast and easy to use

no training needed to use them

35
Q

What are the disadvantages of using a touch screen?

A

Limited number of options available on the screen
Expensive
Screens can become very dirty

36
Q

What are the functions of scanners?

A

To enter information from a hard copy (piece of paper) into a computer

37
Q

What are the uses of a scanner?

A

scans hard copies e.g. documents, photographs, certificates etc. into the computer

38
Q

What are the advantages of scanners?

A

Very fast to enter hard copies
Very easy to scan and store
Easy to back up and duplicate
Damaged photos can then be repaired using graphic editing software

39
Q

What are the disadvantages of a scanner?

A

Images are of lesser quality

Scanned images take up a lot of memory space

40
Q

What are the functions of graphic tablets?

A

Allows designers to produce digital images much more accurately
Feels like drawing with a pen (the stylus)

41
Q

What are the advantages of using a graphics tablet?

A

Much easier to draw images than with a mouse
Very accurate drawings can be produced
Fine detail can be added (unlike using a mouse)
Can be used where symbols are used instead of text

42
Q

What are the disadvantages of using a graphics tablet?

A

Very expensive

Not able to enter data into a computer this way

43
Q

What are the functions of light pens?

A

Quite old technology used instead of mice, touch screen or graphics tablets
Used for drawing directly onto a CRT screen (cathode ray tube)

44
Q

What are the advantages of light pens?

A

More accurate than touch screens

Very small

45
Q

What are the disadvantages of light pens?

A

Not as accurate as a graphics tablet
Can only be used with CRT screens
Can be uncomfortable to use

46
Q

What are the functions of microphones?

A

Used to input analogue sound into a digital computer

47
Q

What are the uses of a microphone?

A 
Narration
Voice over
Speaking over the internet using VoIP e.g. Skype
video conferencing
Converting speech to text
Hands free mobile phones
48
Q

What are the advantages of using microphones?

A

Faster to input words than typing using a keyboard
Able to be used by disabled people who cannot use their hands
Makes driving safer
Very cheap to buy

49
Q

What are the disadvantages of microphones?

A

Sound files take up a lot of storage space
Not as accurate as typing
Background noise can interfere

50
Q

What are the functions of digital cameras?

A

Take photographs and digitally store them on a memory card
Preview photos and discard unwanted ones
Capture sound as well as picture

51
Q

What are the uses of digital cameras?

A

Save special moments
Gather images for use in presentations
Transfer images to a computer for editing
Print images easily

52
Q

What are the advantages of digital cameras?

A 
No film to develop
Unwanted images can easily be deleted
Easy to make copies of images
No need to print
Can store thousands of pictures
Can be easily transferred
Can be easily edited
53
Q

What are the disadvantages of digital cameras?

A

\need to have computer skills to use

Artistry can be lost - camera automtically corrects to what it thinks you want

54
Q

What are the functions of web cameras?

A

Very similar to digital cameras but are directly connected to a computer and do not have memory storage
Used in face to face conferences such as Skype

55
Q

What are the advantages of web cameras?

A

Allow long distance face to face conversations
Allow cheaper interviews and business meetings to take place
Can allow parents to keep an eye on their children from a different location
Can be used as as security device as can be left running constantly

56
Q

What are the disadvantages of web cameras?

A

Image quality can be poor
Permanently fixed to computing device
Usually fixed so can’t move around

57
Q

What is the definition of a direct input device?

A

Device with little or no human input needed.

58
Q

Give 3 examples of a direct input device?

A 
magnetic stripe reader
chip and pin reader
barcode reader
optical marker reader (OMR)
optical character reader (OCR)
Magnetic Ink Character Recognition (MIRC)
59
Q

What are the uses of a magnetic stripe reader?

A

ATM reader of bank cards
EFTPOS for transferring customer money
Hotel room keys

60
Q

What are the advantages of using a magnetic stripe reader?

A

Very fast
No typing involved - therefore no errors
Not affected by water and are robust
Cannot be read by the eye so details on card are safe

61
Q

What are the disadvantages of magnetic stripe readers

A

Can only hold a small amount of data
Need to have contact between the reader and card to work - cannot be used over the internet
If damaged all data is lost
Can be easily duplicated - cloning

62
Q

What are the uses of a chip and pin reader

A

To make secure payments

63
Q

What are the advantages of a chip and pin reader

A

More secure than magnetic stripe readers
Information is harder t clone
Can hold more data than magnetic stripe
Readers are portable

64
Q

What are the disadvantages of a chip and pin reader

A

Might forget the PIN

People can look over shoulder and copy PIN if card was stolen

65
Q

What are the uses of a barcode scanner?

A

Read information stored on a products bar code e.g. product Id number, manufacturer, country of origin

66
Q

What are the advantages of a barcode scanner?

A

Quick and easy to change product prices
Quick and easy to get info onto a system
Very accurate
Automatic stock control

67
Q

What are the disadvantages of a barcode scanner?

A

Expensive way to gather info
Bar codes can be swapped
Damaged bar codes can’t be read

68
Q

What are the uses of an Optical Mark Reader (ORM)?

A

Reads marks made with a pencil, e.g. lottery ticket, multiple choice exams

69
Q

What are the advantages of an ORM?

A

Quick
Accurate
Can save money

70
Q

What are the disadvantages of an ORM?

A

Cannot be read if filled in incorrectly
Can only read shaded areas
Forms can jam

71
Q

What are the uses of an Optical Character Reader? (OCR)

A

Can scan text on a paper into a computer. Converts scanned text to a digital format.
e.g. processing passports

72
Q

What are the advantages of OCRs?

A

Very fast
Cheaper
Avoids typing errors

73
Q

What are the disadvantages of OCRs?

A

Can find handwriting difficult to read
Not 100% accurate
Need to check errors manually

74
Q

What are the uses of Magnetic Ink Character Recognition? (MICR)

A

MIRC can read special ink e.g. customer cheques

75
Q

What are the advantages of MIRC?

A

Process cheques quickly
Greater security
Less errors as not manual input
Info can still be read even if someone writes over it

76
Q

What are the disadvantages of MIRC?

A

Only a limited number of characters can be read

More expensive than other methods

77
Q

What is a sensor?

A

A device that automatically inputs data into a computer system, where the data is constantly changing and can be measured.

78
Q

What are sensors used for?

A 
Measuring:
Temperature
Pressure
Light
Sound
Humidity/moisture
pH
79
Q

What are the advantages of sensors?

A

Readings taken are more accurate
Sensors monitor constantly
Sensors respond to information immediately (burglar alarms)
No need of humans to operate sensor

80
Q

What are the disadvantages of sensors?

A

Faulty sensors can give incorrect results e.g. reverse parking sensors

CIE iGCSE ICT (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions