Operating Systems

Operating Systems

1. Mac OS X

   • OS X,originally Mac OS X, is a series of Unix-based graphical interface operating systems developed and marketed by Apple Inc. It is designed to run on Mac computers, having been pre-installed on all Macs since 2002. It was the successor to Mac OS 9, released in 1999, the final release of the "classic" Mac OS, which had been Apple's primary operating system since 1984. The first version released was Mac OS X Server 1.0 in 1999, and a desktop version, Mac OS X v10.0 "Cheetah" followed on March 24, 2001. Previous releases of OS X were named after big cats; for example, OS X v10.8 was referred to as "Mountain Lion". However, with the announcement of OS X Mavericks in June 2013, this was dropped in favor of Californian landmarks. Within the market of desktop, laptop and home computers, and by web usage, OS X is the second most widely used OS after Windows
     • Steve Jobs

2. Windows XP

   • Bill Gates
     • William Henry "Bill" Gates III (born October 28, 1955) is an American business magnate, philanthropist, investor, computer programmer, and inventor. Gates originally established his reputation as the co-founder of Microsoft, the world’s largest PC software company, with Paul Allen. During his career at Microsoft, Gates held the positions of chairman, CEO and chief software architect, and was also the largest individual shareholder up until May 2014. He has also authored and co-authored several books.

3. Windows 7

   • Bill Gates

4. Ubuntu (Linux-Based)

   • Development of Ubuntu is led by UK-based Canonical Ltd. , a company owned by South African entrepreneur Mark Shuttleworth. Canonical generates revenue through the sale of technical support and other services related to Ubuntu. The Ubuntu project is publicly committed to the principles of open source development; people are encouraged to use free software, study how it works, improve upon it, and distribute it

5. Unix-based OS (other than Linux OS's)

   • Unix (all-caps UNIX for the trademark) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

6. Linux OS

   • Linux was originally developed as a free operating system for Intel x86–based personal computers, but has since been ported to more computer hardware platforms than any other operating system.[citation needed] It is the leading operating system on servers and other big iron systems such as mainframe computers and supercomputers, but is used on only around 1% of desktop computers. Linux also runs on embedded systems, which are devices whose operating system is typically built into the firmware and is highly tailored to the system; this includes mobile phones,[18] tablet computers, network routers, facility automation controls, televisions and video game consoles. Android, the most widely used operating system for tablets and smartphones, is built on top of the Linux kernel

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