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ICT > LO1 - LO3 Unit 2 > Flashcards

LO1 - LO3 Unit 2 Flashcards

(69 cards)

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1
Q

What is an input device?

A

An input device allows data, such as text, images, video or sound, to be entered into a computer system.

Examples include mouse, keyboard, scanner, and microphone.

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2
Q

List 5 common input devices.

A

Mouse
Keyboard
Scanner
Microphone
Webcam

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3
Q

What is an output device?

A

An output device creates outputs such as printed documents, on-screen data, and sound from a computer system.

Examples include monitors, printers, and speakers.

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4
Q

List 5 common output devices.

A

Monitor
Printer
Speakers
Projector
Plotter

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5
Q

What is a biometric device?

A

A biometric device uses a human characteristic as part of its security mechanism, such as a fingerprint, iris, face, or voice.

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6
Q

State 3 human features that may be recorded by a biometric device.

A
  • Fingerprint
  • Iris (eye)
  • Voice
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7
Q

How does a biometric device work?

A

It scans a human characteristic and compares it to stored data in a database to verify identity.

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8
Q

What is one advantage of using biometric devices?

A

Security is improved as biometrics can’t be shared like passwords can.

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9
Q

What is one disadvantage of using biometric devices?

A

They can be expensive to install and require initial setup time for users.

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10
Q

Fill in the blank: A _______ device uses a human characteristic for security.

A

biometric

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11
Q

True or False: Biometric scanners can be affected by environmental conditions.

A

True

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12
Q

What is a common issue faced by disabled users regarding biometric devices?

A

They might not be able to provide the biometric required.

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13
Q

Describe one privacy concern associated with biometric devices.

A

Users might not want their personal characteristics stored on a computer system.

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14
Q

List 3 advantages of using biometric devices.

A
  • Improved security
  • Quicker access than passwords
  • Verification of user identity
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15
Q

List 3 disadvantages of using biometric devices.

A
  • High installation costs
  • Initial setup requirement
  • Reliability issues in certain environments
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16
Q

What is a concept keyboard?

A

A concept keyboard is a type of input device with a flat surface and programmable keys.

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17
Q

What is the main role of a processor?

A

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

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18
Q

What is the primary processor of each computer system called?

A

Central Processing Unit (CPU).

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19
Q

What connects a processor to the motherboard?

A

CPU socket.

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20
Q

What is the function of a motherboard?

A

It is the main circuit board connecting components like the CPU and ROM.

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21
Q

What does a Power Supply Unit (PSU) do?

A

Converts AC (Alternating Current) to DC (Direct Current) for the computer system.

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22
Q

What type of storage is volatile?

A

RAM

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23
Q

What type of storage is non-volatile?

A

ROM

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24
Q

What does RAM stand for?

A

Random Access Memory.

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25
What is the role of RAM in a computer?
Stores all currently running programs and parts of the operating system.
26
What is Read-Only Memory (ROM)?
Non-volatile storage that cannot be changed.
27
What does ROM store?
The boot program
28
What is cache memory?
Volatile storage that stores frequently accessed data.
29
How does cache memory compare to RAM?
It is faster than RAM because it is stored on the processor itself.
30
What is the function of a magnetic hard disk drive (HDD)?
A common form of secondary storage in desktop computers.
31
What is an obsolete type of magnetic storage?
Floppy disk.
32
What is magnetic tape primarily used for?
Backing up or archiving large amounts of data.
33
List two characteristics of magnetic storage.
* Large capacity * Cheaper per gigabyte than solid state
34
What is optical storage used for?
Reading data from CDs, DVDs, or Blu-Ray using a laser.
35
What is a key characteristic of optical storage?
It has the slowest access speed among storage types.
36
What are Solid State Drives (SSDs)?
Storage devices with no moving parts that are replacing HDDs.
37
What is a USB flash drive?
A type of solid state storage used for transporting files.
38
What is a characteristic of solid state storage?
* Fastest access speed * Usually durable
39
What is cloud storage?
Storing data on large servers owned by hosting companies.
40
What is a benefit of cloud storage?
Allows access from different locations Can access after natural disasters
41
What is the purpose of expansion cards?
circuit boards attached to the motherboard for specific functions.
42
What does a graphics card do?
Increases the performance of your computer with better imagine quality giving it a higher refresh rate.
43
What does a sound card do?
Converts analogue sound waves into digital data
44
What is a storage controller card?
Required for managing and using attached storage devices.
45
What is a port in computer systems?
The interface between external devices and the computer.
46
What does a USB port connect?
Storage devices such as USB sticks or external hard drives.
47
What does an Ethernet port allow?
Connects computers to network devices for internet access.
48
What is a desktop computer?
A computer suitable for use at an ordinary desk, bulky, and not easy to move. ## Footnote Desktops allow for individual component upgrades and are versatile for various activities.
49
What are the advantages of a desktop computer?
Versatile, allows upgrades, suitable for multiple activities including document creation and gaming. ## Footnote Desktops are particularly useful for personal or business purposes.
50
What are the drawbacks of a desktop computer?
Bulky, not portable, can be restrictive in screen size for multiple documents. ## Footnote Limited mobility increases the risk of theft or loss.
51
What defines a tablet or laptop?
A small and portable type of computer that can fold back into a tablet form with a screen-based virtual keyboard. ## Footnote Many modern laptops also perform many functions of a traditional PC.
52
What are the advantages of a tablet or laptop?
Portable, versatile, can perform traditional PC functions. ## Footnote Useful for on-the-go activities.
53
What are the drawbacks of a tablet or laptop?
Screen size can be restrictive for multitasking, more susceptible to loss or theft, relies on battery power ## Footnote Security software may not be as effective compared to other systems.
54
What is a smartphone?
A device that can run multiple applications with many functions ## Footnote Smartphones can negatively affect social interaction and spatial awareness.
55
What are the advantages of a smartphone?
Portable, multifunctional, allows access to a wide range of applications. ## Footnote Can be used for communication and entertainment.
56
What are the drawbacks of a smartphone?
affect social interactions, reduce spatial awareness, relies on battery power, can be lost damaged or stolen. ## Footnote Sensitive data should not be stored on smartphones due to security vulnerabilities.
57
What is an embedded system?
A smaller computer system installed within a larger device with a dedicated purpose, often running in real-time. ## Footnote Examples include washing machines and traffic lights.
58
What are the advantages of embedded systems?
Dedicated purpose, often reliable and efficient for specific tasks. ## Footnote Used in many everyday devices.
59
What is a mainframe computer?
A huge and powerful computer used to process large amounts of data. ## Footnote Mainframes are reliable, secure, and used for complex calculations.
60
What are the advantages of mainframe computers?
Very powerful, reliable, capable of processing large datasets quickly. ## Footnote Used by organizations needing to handle vast amounts of data.
61
What are the drawbacks of mainframe computers?
Very expensive, require teams of experts to manage. ## Footnote Typically used only by large organizations like banks and airlines.
62
What is a quantum computer?
An experimental computer that works with quantum bits ## Footnote Qubits represent atomic particles and offer potential for faster data processing.
63
What are the advantages of quantum computers?
Potential to process data millions of times faster than current computers. ## Footnote Still in development and experimental stages.
64
Fill in the blank: A computer suitable for use at an ordinary desk is called a _______.
desktop
65
Fill in the blank: A small and portable type of computer that can fold back into tablet form is called a _______.
tablet/laptop
66
Fill in the blank: A device that can run applications including email and social media is called a _______.
smartphone
67
Fill in the blank: A smaller computer system installed within a larger device is known as an _______.
embedded system
68
Fill in the blank: A huge and powerful computer used to process large amounts of data is a _______.
mainframe
69
Fill in the blank: An experimental computer that works with quantum bits is called a _______.
quantum computer

ICT (3 decks)

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