Unit 1 LO2.4 Revision

Primary role of an operating system

• To provide internet connectivity.
• To run applications without any user input.

• To store data permanently.
• To act as an interface between the user and the computer​

Match the Operating System

• Real-time OS

• a task had to be shut down before another could run​

• Multi-user Multi-tasking

• More than one processor

• Single-user Multi-tasking

• Mainframes

• Multi-processor OS

• Mobile Phone

• Single-user Single Tasking

• Embedded Systems

WIMP is an example of __________ user interface

A _______ interface is text-based, but can interact directly with the system

Utility Software used to reduce file sizes for easy storage and transmission

• Defragmentation

• Compression

• Disk Clean-up

• Encryption

Match the Functions of the operating system

Groups:

(a) File Management

,

(b) Resource Management

,

(c) Memory Management

,

(d) Processor Scheduling

• Ensures memory protection

• Organizes files / folders

• Oversees all input and output operations

• Handles process prioritization
• Allocates CPU time to processes

• Maintains file permissions

Software that will help a developer locate and correct errors​

• Interpreter

• Translator

• Compiler

• Debugger

Business software that helps businesses manage data for decision-making

• MIS

• Project Management

• Collaboration

• Expert Systems