YEAR 1 CO1 WEEK 25 TYPES OF OS

Question 1

Describe the MutiTasking OS.

Answer 1

Allows more than one program to run at the same time (appear to).
Arranges for every process to have some CPU time, switching between processes.

Question 2

Describe the MultiUser OS.

Answer 2

Allows multiple users, on different workstations, to access a single powerful computer via a network.
Handles the needs of users by dividing up CPU time and assigning blocks to each user in time.

Question 3

Describe what happens in turn for a multiuser OS.

Answer 3

Each user logs onto system + presented with their workspace.
Allocates resources for jobs they want to run.
Keeps log of how much processing time and resources they use.
Works out most efficient use of computer processing cycles.
Maintains security + privacy between the different users.

Question 4

Describe the Distributed OS.

Answer 4

Controls a number of computers at the same time to undertake a single computer intensive task.
Each computer contains part of the overall OS.

Question 5

Describe the Real Time OS.

Answer 5

Designed to handle input data within a guaranteed response time (latency).
Specifically designed to be extremely reliable and to have precise and consistent timings.

Question 6

Describe the Embedded OS.

Answer 6

Computer hardware designed to handle a specific task on a specific system hardware.
Hardware resources usually limited due to size of object or functions it is required to perform.

Question 7

Describe the Batch OS.

Answer 7

Common on a mainframe computer specifically with massive repetitive data processing in mind.
Requires seperate programs for input, process and output.