UNIX is a multi-user operating system released in August 1969 by Bell Laboratories to support the development of softwares. Today, the UNIX name is used for operating systems that either originated from the UNIX system from AT & T or has implement of its concepts. Previously we discussed about UNIX Like Operating System, which is actually the Free Software alternative, namely Linux, developed and progressed as a Free Software movement by Richard Stallman. Apple’s OS X (10.7 upwards) is based upon the Mach kernel. Certain parts are from FreeBSD and NetBSD, so practically it is UNIX Operating Systen. The quality of security, some of the most used commands are exactly the same for both UNIX and UNIX Like Operating System.
Microsoft’s Windows Operating System, in strict sense can not be compared with UNIX and UNIX Like Operating Systems for various technical reasons and focused for single user, which was modified by practically unofficially porting OpenVMS…