3503874
Description
Mind Map by Chantello Jagmoc, updated more than 1 year ago
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Created by Chantello Jagmoc
over 9 years ago
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Chantello's
Components of an
Operating System
- Memory Management
- Keeps track of which
parts of memory are
currently being used
and by who
- distribute and
return memory
space as needed
- Decide which processes
to load when memory
space becomes available
- Keeps track of which
parts of memory are
currently being used
and by who
- Process Management
- A process is when
a program is being
executed.
- CPU time, memory, files, and
I/O devices are resources
that a process needs to finish
its task
- The operating system is
responsible for the
following activities in
connection with the process
mangement
- A process is when
a program is being
executed.
- File Management
- File
creation and
deletion
- Directory
creation and
deletion
- Support of
primitives for
manipulating files
and directories
- Mapping files
onto secondary
storage
- File backup on
stable storage
media
- File
creation and
deletion
- I/O System Management
- A buffer-caching
system
- A general
device-driver interface
- Drivers for specific
hardware devices
- A buffer-caching
system
- Protection System
- Distinguish between authorized
and unauthorized usage
- Lets you know if you are
downloading/opening an
potential treat to your computer
- Protects your computer from viruses, trojans, etc
- Distinguish between authorized
and unauthorized usage
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