4. An operating system
(OS) is a collection of
software that manages
resources and provides
common services for
computer programs. The
operating system is a
vital component of the
system software in a
usually require an
operating system to
5. Providing a user interface
Support for built in utility
Control to the computer
6. Process Management
7. Single user, Single
Single user, Multi-
Multi user, Multi-
11. Single user multi-tasking os allows user to perform one or
more than one task at same time
Commonly os are
Single User Multi-tasking
12. Microsoft Windows:
Windows is a series of operating systems
developed by Microsoft. Each version of Windows
includes a graphical user interface, with a desktop
that allows users to view files and folders in
windows. For the past two decades, Windows has
been the most widely used operating system for
personal computers PCs.
13. MacOS X:
OS X is version 10 of the Apple Macintosh
operating system. OS X was described by
Apple as its first “complete revision” of the
OS since the previous version is OS 9, with a
focus on modularity so that future changes
would be easier to incorporate.
Written in c++ .c .objective -c
16. This type of operating system only has to
deal with one person at a time, running one
user application at a time.
An example of a this kind of operating
system would be found on a mobile phone.
There can only be one user using the mobile
and that person is only using one of its
applications at a time.
Operational at all times.
Should coordinate and have good control of
input and output operations and the devices
on which they are performed.