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
