there are many operating systems are used around the world.there are mainly 10 os's.many service packs are creteated by using this operatingsystems.the service packs are developed by use of the company purpose.
Windows, Linux, Mac OSX are currently the three most popular computer operating systems. Other operating systems are Solaris, BeOS, Google Chromium os, and many more.
There are a few operating systems. Typical examples for home PCs include: Windows, in it's many versions. Mac OS (like OS X). There are many versions of Linux, like Debian, Red hat, and Slackware, Suse and FreeBSD Other operating systems exist for things like mainframes Unix (on which Linux is based) is one. Many other proprietary systems exist as well. A more in depth treatment can be found here:
Drivers are written for many operating systems.
There's no hard limit on the number of operating systems you can install. The limit will be dictated by the number of operating systems that support your hardware and the amount of space on your hard drive(s).
Microsoft sells many operating systems most have Windowsin their name somewhere.
Windows, Linux, Mac OSX are currently the three most popular computer operating systems. Other operating systems are Solaris, BeOS, Google Chromium os, and many more.
There are a few operating systems. Typical examples for home PCs include: Windows, in it's many versions. Mac OS (like OS X). There are many versions of Linux, like Debian, Red hat, and Slackware, Suse and FreeBSD Other operating systems exist for things like mainframes Unix (on which Linux is based) is one. Many other proprietary systems exist as well. A more in depth treatment can be found here:
Drivers are written for many operating systems.
Many operating systems are "old", and many are new. Without specific systems to compare, your question is unanswerable and meaningless.
There's no hard limit on the number of operating systems you can install. The limit will be dictated by the number of operating systems that support your hardware and the amount of space on your hard drive(s).
one
An embedded operating system is an operating system for embedded computer systems. These operating systems are designed to be compact, efficient, and reliable, forsaking many functions that non-embedded computer operating systems provide, and which may not be used by the specialized applications they run.
An operating system is just like any other piece of software: none is perfect. Because of this, many attempts are being made to create the "best" one available.
Currently, The Open Group owns the "Unix" trademark. No, Unix branded operating systems are proprietary and copyrighted. They are not free or open systems software. From its start until 1993, Unix distributions included all their source code. Programmers have made many free and open Unix-like operating systems, including Linux, NetBSD, FreeBSD, OpenBSD, Dragonfly BSD, Mach, OpenSolaris, etc.
No one knows how many aye-ayes currently exist, let alone how many used to exist.
How many skis are there in the world? .
Atleast over 200,000,000