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software
Friday 31 May 2013 | 09:10 | 0 comments
what is software?
- System software controls
and maintains the operations of the computer and its devices.
-Application software makes
users more productive and assists them with their tasks.
-Programming Language enables
people (called programmers) to communicate instructions to a
computer.
Software layer 
1.Uppermost
software layer
2.Designed
to be powerful but easy to use
1.Higher levels are protected from any
issues
-Multiple
users
-Multiple
requests for the same resource
-Access
control
1.Device drivers are very low level instructions to a device (e.g.,the printer, or the hard drive) 1.To supports common activities that high level applications need to do, e.g., printing |
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