·
DOS (disk operating
system)
·
Windows
Ø Windows
2003
Ø Windows
3.X
Ø Windows
8
Ø Windows
7
Ø Windows
95
Ø Windows
98
Ø Windows
CE
Ø Windows
ME
Ø Windows
NT
Ø Windows
Vista
Ø Windows
XP
·
Xenix
·
Vector Linux
·
UnixWare
·
Unix
·
Unisys
·
Ultrix
·
Turbolinux
·
Tru64 Unix
·
SuSE Linux
·
Sun Solaris
·
Slackware Linux
·
SCO
·
Red Hat Linux
·
NEXTSTEP
·
MINIX
·
MAC OS 8
·
LINUX
·
Kondara Linux
·
IRIX
·
DUnix
·
DYNIX/ptx
·
Corel Linux
·
BSD
·
Android
·
AIX and AIXL
How
operating system work?
For
a computer to be able to
operate a computer programme (sometimes
known as application or software), the machine
must be able to perform a certain number of preparatory operations to ensure
exchange between the processor,
the memory and
the physical resources (peripherals).
The operating system (sometimes
referred to by its abbreviation OS), is responsible for creating
the link between the material resources, the user and the applications (word
processor, video game, etc.). When a programme wants to access a material
resource, it does not need to send specific information to the peripheral
device but it simply sends the information to the operating system, which
conveys it to the relevant peripheral via its driver. If there are no drivers,
each programme has to recognise and take into account the communication with
each type of peripheral!
The
operating system thus allows the "dissociation" of programmes and
hardware, mainly to simplify resource management and offer the user a
simplified Man-machine interface (MMI) to overcome the complexity of the actual
machine.
Advantages
of operating system
i.
provides detailed
information about the operating system running on a device
ii.
allow using computer
without any knowledge of coding.
iii.
enable businesses to move
with agility and speed
iv.
provides a broad and
highly stable database and middleware foundation for efficiently deploying
business processing applications
WINDOWS:
advantages:
-Lots of software and games are developed for
windows.
-Windows is also somewhat user friendly.
Disadvantages:
-Very bloated with many features most people don't
use, thus slowing down the computer and takes excessive hard drive space.
However this shouldn't be much of a problem with newer computers.
-There are many viruses programmed for windows.
-Can get a little pricey.
MAC OS X\
Advantages:
-Very user friendly with nice graphics
-very few or no viruses are programmed for OS X
-Some selection of software and games.
Disadvantages:
-Also bloated
-The computers are Overpriced; also can get pricey
for software
LINUX:
Advantages:
-FREE!
-Has many distributions (or versions) that are
designed to do specific tasks
-Programmer friendly
-There are many versions that have what you need and
will not slow down your computer (especially if you have an older one)
-Few viruses
-Advanced users can COMPLETELY customize the system.
Disadvantages
- Not very user friendly (with exception of Ubuntu
distribution)
- few software selections
DOS
Advantages:
1. will run on a much smaller system.
2. give more "direct" control of the processes.
3. smaller size will "boot" much faster than ANY windows version.
4. Is easier to write,
Disadvantages:
1. Very few "new" programs available, therefore you need to be able to write programs in many cases.
2. Not nearly as fancy in the graphics department.
3. Not compatible with current "browsers" and most internet.
1. will run on a much smaller system.
2. give more "direct" control of the processes.
3. smaller size will "boot" much faster than ANY windows version.
4. Is easier to write,
Disadvantages:
1. Very few "new" programs available, therefore you need to be able to write programs in many cases.
2. Not nearly as fancy in the graphics department.
3. Not compatible with current "browsers" and most internet.
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