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OPERATING SYSTEM (Manage programs (allows user to
run multiple programs…
OPERATING SYSTEM
Manage programs
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The active program will be displayed on the
desktop, while other programs are at the
background.
OS allows user to easily switch between the
programs by clicking at the program button at
the taskbar.
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Coordinate tasks
A task, or job, is an operation that the
processor manages.
Tasks include receiving data from input device,
processing instructions, sending information
to output device and transfer to storage or memory
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Manage memory
OS allocates data & instructions to memory
while being processed,
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Control a network
to share a printer, Internet access, files, and
programs.
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Provide user interface
User interface is the part of OS that controls
how users enter data and instructions and
how information is displayed on the screen.
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Command-line interface
user types commands on the keyboard to give
instructions.
– Disadvantage: Difficult to use since user have to
exact spelling
Administer security
-OS provides setting to create user account and
and establish permissions to resources.
• These permissions define who can access
certain resources and when they can access
those resources.
Monitor performance
A performance monitor is a program that
assesses and reports information about
various computer resources and devices such
as processor, disk, memory and network
usage.
Manages the computer hardware, and all the
other programs in a computer.
• Performs various functions or basic tasks
