Role of the operating system

What is an operating System

• A piece of hardware
• A set of programs to create documents
• A set of programs that manages the operations of the computer for the user
• The boot up program

An operating system is required because....

• it boots up the computer
• it acts as a bridge between the user and the computer's hardware
• it is the hard drive

The operating system is held.....

• in permanent storage and loaded into RAM when the computer is booted up
• in the loader program
• in the boot up program

Processor scheduling is one of the functions managed by the OS.  Which one is a scheduling method used by the scheduler

• Round To It
• Round Table
• Round Robin

What is meant by multi-tasking?

• The computer executes more than one instruction at a time
• The processor carries out small parts of multiple larger tasks in turn, very quickly
• Doing more than one job at the same time

If there is not enough RAM.  Virtual memory is created by the Operating System.  Virtual memory is

• memory that is not real
• part of the hard drive allocated as RAM
• a type of sheep
• a type of goat

Which of these is not a function of an OS:

• Provide a user interface

• Communicate with hardware

• Allow the computer to multi-task

• Improves CPU performance

What does GUI stand for?

• Genuine Umpire Impressions

• Graphical User Interface

• Graphic Up Industry

What is defragmentation?

• Rearranging files to occupy contiguous space.
• Speeding up processing.
• Rearranging the RAM.
• Rearranging processes queued for processing.

The ability of the processor to stop what is currently doing and instead service a request from hardware or software is known as

• hardware handling

• buffer handling

• interrupt handling

• error handling