2.4 Operating Systems

Question 1

What are the characteristics of a single user operating system?

Answer 1

Easier to maintain and debug Supports one user at a time Tasks take longer to complete Idle time is higher

Question 2

What are the characteristics of a multiuser?

Answer 2

each user can access the same document or different documents on their particular PC at the same time. Complex to set up If one computer attached to the network is a attacked by a virus, it can spread to the other computers on the same network.

Question 3

What are the characteristics of a single processor?

Answer 3

Time-slices are short and give the user the impression that their programs are running continuously. Slower processing time than a multiprocessor operating system. Costs more because each processor requires separate resources

Question 4

What are the characteristics of a multiprocessor?

Answer 4

More work can be done in less time Failure of one of the processors will not affect the overall functionality of the system More expensive Complex operating system required Large main memory required Feed can be affected if one processor fails

Question 5

What are the characteristics of off the shelf?

Answer 5

Available immediately Upgrades available Compatible with hardware already acquired May require an annual fee May have a lot of features not required

Question 6

What are the characteristics of open source?

Answer 6

Usually free Continually being improved No hidden costs More difficult to find application packages to suit individual needs

Question 7

What are the characteristics of bespoke?

Answer 7

Will be updated based on the budget and requirements of the business Although up front costs are expensive, there are no licensing costs More expensive to build Continually dependent on the developer