Using the computer

Question 1

What does the operating system do?

Answer 1

Set of programmes that control the running of the computer

Question 2

An operating system…

Answer 2

• Loads and runs programmes
• Makes the best used of RAM
• Handels Inputs and Outputs
• Manages the security of the system

Question 3

What are the types if operating systems?

Answer 3

• Single Program
• Batch Processing
• Multi-Programming
• Multi-Access
• Distributed System
• Process Control System
• Parallel Processing

Question 4

What does HCI stand for?

Answer 4

Human Computer Interface

Question 5

What does a Command Line Interface do?

Answer 5

The user types in a command at a prompt character

Question 6

What are the advantages of Command Line Interface?

Answer 6

• The instructions are executed quickly

- They use less memory than other operating systems

Question 7

What are the disadvantages of Command Line Interface?

Answer 7

• You need to learn the special instructions used

- Some commands and their options are very complex

Question 8

What does a Graphical User Interface do?

Answer 8

Used WIMP (Windows, Icons, Menus, Pointers)

Question 9

What are the advantages of Graphical User Interface?

Answer 9

• Low-Level ICT skills are needed

- Desktops can be customised

Question 10

What is Speech Interface?

Answer 10

Spoken Commands using a Microphone

Question 11

What are the advantages of Speech Interface?

Answer 11

• Useful if the user is unable to use their hands

- A user can issue commands while their hands are busy, such as pilot

Question 12

What are the disadvantages of Speech Interface?

Answer 12

• People speak using different tones

- People speak different languages

Question 13

What are the advantages of Menus?

Answer 13

• Easy to Navigate

- Nothing to learn because all options are displayed

Question 14

What are the disadvantages of Menus?

Answer 14

• Some options may not mean anything to the user

- Sometimes difficult to find options as there are so many

Question 15

What is Touch-Sensitive Device?

Answer 15

The position where the device is touches is sensed and used as input data

Question 16

What are the advantages of Touch-Sensitive Device?

Answer 16

• Low-level ICT skills are needed

- No moving parts, so little possibility of damage

Question 17

What are the disadvantages of Touch-Sensitive Device?

Answer 17

• May become dirty and difficult to read

- May be difficult to read

Question 18

What are biometric?

Answer 18

Use Physical Characteristics to Identify User

Question 19

What are the inputs for Biometrics?

Answer 19

• Fingerprint
• Retina Scan
• The Voice
• Facial Features

Question 20

What are the advantages of Biometrics?

Answer 20

• No key needed

- No password to forget

Question 21

What are the disadvantages of Biometrics?

Answer 21

• Some people may possess the physical characteristics being measure

Question 22

What are the disadvantages of Graphical User Interface?

Answer 22

• It many run slowly

- It can use up a lot of computers resources