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Solaris 11.2 was released by Oracle in beta form in 2014 to focus on cloud computing, and it operates as a cloud platform supporting virtualisation, application-driven software-defined networking (SDN) technology. It was renamed Oracle Solaris, and supports multiprocessing and multithreading operations. Solaris is a UNIX-based computer operating system developed by Sun Microsystems which was bought over by Oracle Corporation at the beginning of 2010. However, programs written for OS/2 will not run on Windows or machines running DOS. As would be expected from the developers (IBM and Microsoft) OS/2 is compatible with Microsoft Windows and most versions of DOS and can run all applications designed for these operating systems. Originally released at the end of 1987, the last version of OS/2 was released at the end of 2001.

The name OS/2 came from IBM’s Personal Computer system known as Personal System/2 – or PS/2. Once developed, however, it became purely the domain of IBM who marketed and managed it. OS/2 was originally developed by the old IBM/Microsoft collaboration.

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An interesting development when first released, Linux is now used widely by developers who, under the open-source system, can make changes to the software to meet their own needs.

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Linux Operating SystemĪs stated above, Linux was derived from UNIX – derived by Swede Linus Torvalds and released to the public in 1991 under the free and open-source software collaboration. One clone of UNIX is Linux which will be discussed next. It has been designed for multi-user operations (servers are a prime example) and has built-in TCP/IP (Transmission Control Protocol/Internet Protocol) – the fundamental communication protocol used on the internet. It is the most common server operating system on the internet.

#APPLE SERVER SYSTEM MAC OS X#

Whereas Mac OS X works on Apple Macs and Windows works on Windows PCs, UNIX will work on both, which is why its main usage is on servers. It is a multiuser and multitasking operating system that works independently of the hardware. It was later spelled as UNIX – a sexier spelling in the IT world! This was considered too complex an OS, and was developed into UNICS: Uniplexed Information and Computing System. The original was named MULTICS – Multiplexed Information and Computing System. UNIX is slightly different, and was originally developed by Ken Thompson, Dennis Ritchie and other developers in the Bell Labs research center. The above three computer operating systems are the major operating systems that have been used over the years for personal computers – PCs and laptops. This is just one example of how operating systems can develop and be hybridized with the acquisition of totally different operating systems! Mac OS X then became simply OS X which is now used to operate Apple Mac computers.

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OS X is not simply an update of Mac OS because it uses different architecture: it is a UNIX OS that came about after Apple purchased NeXT Computer that used its NeXTSTEP operating system. Mac OS X became public with Version 10 of Mac OS in 2001. The term ‘disk operating system’ applied to the disks that were essential for computers to run at that time – either hard disks or floppies, the latter used for business computing with Winchester drives in the early days, and floppies used to load software before PCs with lots of internal memory became commonplace. This was extended by Gates to MS-DOS to be used only by Microsoft. DOS: Disk Operating SystemĭOS was the computer operating system used in the early days of computing and was extended to PC-DOS by Bill Gates when Microsoft was asked by IBM to develop an operating system for the IBM personal computers. Here is some information about the most common OS families in use today. There are many computer operating systems, or OS families, available throughout the world. The various OS systems available are known as “OS Families”.Īll your software or apps run on top of the computer operating system – without an OS your computer would do nothing. Each of these devices needs an ‘Operating System’ or OS to run it and control its overall functioning.

You may have a computer, laptop or a mobile device such as a tablet or smartphone. Computer operating systems are essential for any computer to work.

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