1.2.1

Question 1

Operating System

Answer 1

• Refers to a collection of programs that provides an interface between the user and computer
• Allows user to comunicate with the computer

Question 2

Paging

Answer 2

• Memory is split into equal-sized sections known as pages.
• These can be swapped between main memory and the hard disk as needed

Question 3

Segmentation

Answer 3

• Splitting up of memory into logically sized divisions known as segments
• These can vary in size
• These represent the structure and logical flow of the program

Question 4

Virtual Memory

Answer 4

• Section of the hard drive to act as RAM when main memory is full
• Stores sections of programs not currently being used are temporarily stored through paging

Question 5

Disk Thrashing

Answer 5

• This is where the computer freezes due to pages being swapped too frequently between the hard disk and main memory
• This becomes progressively as the virual memory is filled up

Question 6

The Kernel

Answer 6

• The core of the operating system
• Helps manage system recources
• Lies below user interface
• Applications running use the kernel to send and receive data to and from devices

Question 7

Utilities

Answer 7

• A small program that has one purpose, usually with maintenance of the system