2.4 operating systems Flashcards
characteristics of a single user?
Easier to maintain and debug
Supports one user at a time
Tasks take longer to complete
Idle time is higher
what are the characteristics of multiuser?
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.
what are the characteristics of single processor?
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
what are the characteristics of multiprocessor?
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
what are the characteristics of off-the-shelf?
Available immediately
Upgrades available
Compatible with hardware already acquired
May require an annual fee
May have a lot of features not required
what are the characteristics of open source?
Usually free
Continually being improved
No hidden costs
More difficult to find application packages to suit individual needs
what are the characteristics of bespoke?
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
