Question 1
- (i) Define an operating system
- Starting from the Save As dialogue box, outline the steps involved in passwording a document in a word processing package.
(ii) State two functions of an operating system
(iii) List two differences between an operating system and application software
Observation
The expected answers were:
(a) (i) Operating system is a suite/set(collection) of programs/software that controls and coordinates/manages the hardware and software of a computer system.
OR
A set of programs that act as interface between the user and the computer (Hardware & Software)
OR
A set of programs that controls and manages computer resources/components and provides other useful services.
[Candidate’s response must include programs/software and any other keyword]
[1 mark]
(ii)
- File management
- Storage management
- Input-Output/peripheral management
- Serves as an interface between the user and the computer/Hardware & Software
- Protects the system from errors and failures
- Access control/Security
- Processor Management
- Booting/starting up the computer
- File Management
- Resource Management
- Task/Process Management
- Provides virtual machine
(iii) Differences between operating system and application software include:
S/N |
Operating system |
Application software |
1. |
Controls the functioning of the computer/management of computer resources/system software |
Performs specific task(s) |
2. |
It is independent of Application Software/Does not depend on the application software |
Depends on the operating system to operate |
3 |
Can boot the computer |
Cannot boot the computer/ |
4 |
Provides services to computer |
Provides services to the user |
(b)
- From the Save As dialog box, click on Tools
- Click on General/Security option
- Type in the password and click ok, Retype the password and click ok
OR
- Click on file, click on Info
- Click on Protect document, Encrypt with password
- Type in the password and click ok , Retype the password and click ok