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40+ Operating systems written in C programming !! DDC-l DG/UXOpenVMS Ultrix HP-UX Enea OSE Google Chrome OS Android HP-UX 11i z/OS AIX (Advanced Interactive Exective) OpenSolaris OS/2 IBM Academic Operating System ICL VME (Virtual Machine Entertainment) MicroC/OS-III WindowsNT Windows CE Singularity Operating System RTXC Quadros OS-9 Solaris UNIX Minix BSD Unix Darwin Linux OpenIndiana ReactOS Inferno MorphOS EmuTOS iOS Maemo Windows Phone iPoadLinux Rockbox eCos ThreadX Unix AmigaOS Mint (Mint is now Tos)

Year Event 1957 Bell Labs found they needed an operating system for their computer center that at the time was running various batch jobs. The BESYS operating system was created at Bell Labs to deal with these needs. 1965 Bell Labs was adopting third generation computer equipment and decided to join forces with General Electric and MIT to create Multics (Multiplexed Information and Computing Service). 1969 By April 1969,  AT&T  made a decision to withdraw Multics and go with GECOS. When Multics was withdrawn Ken Thompson and Dennis Ritchie needed to rewrite an operating system in order to play space travel on another smaller machine (a DEC PDP-7 [Programmed Data Processor 4K memory for user programs). The result was a system that a punning colleague called UNICS (UNiplexed Information and Computing Service)--an 'emasculated Multics'. 1969 Summer 1969 Unix was developed. 1969 L...

1) What is a proxy? A proxy is an address of a proxy server (look @ kind of proxy's) that is placed between your computer and the internet : Normal : Computer --------> Internet With proxy : Computer ---------> Proxy server -----------> Internet The main advantage of the Proxy is that it will cover up your IP address (your identity on net) which may help you in opening the ban sites in your country. It was very much popular in days when Facebook was banned in Pakistan and user use Proxies to log into their accounts. 2) Kind of Proxies: You have 2 different proxy's (some more but these are for a normal internet users) : -1: Private proxies : They are only for you (it's the same like buy your own ip address ) and will cost 15-20$ -2: Public Proxies : They are for everyone but the problem is sometimes you can get fast proxy's and sometimes slow ones. If you have a good site/list with fast proxy's there as good as private proxy's. 3) Where ...