Software

Question 1

Functions of operating system

Answer 1

• input and output control
• error handling
• providing a user interface

Question 2

Describe CLI

Answer 2

Command line interface - can access everything on the computer system

Question 3

Pros of CLI

Answer 3

• Low resolution,cheap monitors can be used
• Uses much less memory(RAM) than any other interface type
• Knowing the correct commands, this can be much faster

Question 4

Cons of CLI

Answer 4

• Can be confusing
• Commands have to be typed precisely
• Large number of commands need to be learned

Question 5

Describe GUI

Answer 5

Graphical user interface - use graphics to stand for the complicated actions - use a mouse to select the icons

Question 6

Advantages of GUI

Answer 6

• easy to use
• do not have to learn complicated commands
• exchange data between different software

Question 7

Disadvantages of GUI

Answer 7

• larger amount of hard disk space than other interfaces
• use more processing power
• slow for experience programmers to use

Question 8

Describe the protection form software piracy?

Answer 8

• Serial number
• ## Encryption, coded software