1647611
Description
Mind Map by rwc.carlton, updated more than 1 year ago
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Created by rwc.carlton
almost 10 years ago
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Operating Systems (OS)
- Defintion
- Collection of
programs that
control the system
hardware resources
- Acts as a common
programming layer
between hardware
and the user
- This extracts complexity of
hardware away from the user
- Perfroms all the technical complex
parts of running a computer
with you just doing a very
simplified version
- Perfroms all the technical complex
parts of running a computer
with you just doing a very
simplified version
- This extracts complexity of
hardware away from the user
- Controls communication to the peripherals devices
- Speakers
- Secondary Storages
- HDD
- SDD
- HDD
- Microphones
- Speakers
- Collection of
programs that
control the system
hardware resources
- Resource
Manager
- Manages and allocates
resources of the computer to
allow multitasking
- Tasks compete for
resources e.g. processor
time, memory – the OS
allocates resources to these
processes.
- Manages and allocates
resources of the computer to
allow multitasking
- Security Handling
- On multi-users system, it
allows users with correct
permissions to access
resources.
- Allows safe file
sharing as required
- Stops other users
reading your files
- On multi-users system, it
allows users with correct
permissions to access
resources.
- Client
- Allows user access to
word, excel
- Examples
- Windows OS
- Linux
- Mac OS
- Windows OS
- Allows user access to
word, excel
- Server
- Dedicated computer
for other computers
to access
- Can host
- Files
- Gaming
- Streaming movies, music etc.
- Files
- Windows server,
Mac server, Linux
(raspberry pie)
- Dedicated computer
for other computers
to access
- Features of a GUI
(Graphical User Interface)
- WIMP
- Windows
- Icons
- Menus
- Pointers
- Windows
- WIMP
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