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Which are the various available versions of UNIX?
According to their website, there are exactly 30 versions in existence.http://www.unix.com/unix-dummies-questions-answers/28637-versions-unix.htmlThere are many different versions of UNIX. Until a few years ago, there were two main versions: the line of UNIX releases that started at AT&T (the latest is System V Release 4), and another line from the University of California at Berkeley (the latest version is BSD 4.4). Some other major commercial versions include SunOS, Solaris, SCO UNIX, AIX, HP/UX, and ULTRIX. The freely available versions include Linux and FreeBSD.Many versions of UNIX, including System V Release 4, merge earlier AT&T releases with BSD features. The recent POSIX standard for UNIX-like operating systems defines a single interface to UNIX. Advanced features differ among systems.Most versions of UNIX can also work with window systems, which allow each user to have more than one "terminal" on a single display.
What are system calls in Unix?
System calls provides interface use of services available in the operating system.
What are some of the options available in UNIX command PS?
The 'ps' command may differ slightly in different versions of unix operating systems. It is usually better to use the 'man ps' command or the 'info ps' command to see the options that are available for your distribution.
When was UNIX System Services created?
In 1984, another factor brought added attention to UNIX system
UNIX initially did not include a graphical interface?
Very true - the X-windows graphical interface was not available in Unix systems for a long time after Unix was available.
Did UNIX initially include a graphical interface?
Very true - the X-windows graphical interface was not available in Unix systems for a long time after Unix was available.
Versions of UNIX that come from Bell Labs are known as?
System V
What are a few of the companies that provide Unix server solutions?
Unix Servers are presently declining. Size Thirteen Companies provide Unix security and reliability for high visibility online. SpexHost provides virtually any service relating to Unix.
Is UNIX used primarily with mainframes as a network operating system?
No. Licensed Unix implementations are a proprietary flexible general purpose operating system originally marketed for minicomputers and mid-range computers to support multiple users and tasks. When Personal Computers became available, versions of Unix were created for them. Unix was also implemented for the IBM mainframe. This is not the same as Linux which is an open source free system with many of the same capabilities and look & feel of unix but without the licensing requirement of unix.
What is the significance of Windows 7 and Unix services?
tHE QUESTION WAS WHAT IS THE DIFFERENCE BETEEN unix and windows 7, but i did not get the appropriate answer.
I am currently using windows XP2. For practice purpose i want to use UNIX shell scripting. Without installing UNIX OS how can i use the UNIX shell scripting?
You should be able to download the Unix Services for Windows, version 3.5, from Microsoft (free). There are other shell emulators that are available for Windows, which would allow you to use Unix type shell scripting without installing any additional OS. Your question about "virtual UNIX" is unclear ..
Why can't Unix be run on microcomputers?
Many versions of Unix can be run on microcomputers. Xenix, Solaris, Mac OS X, and IRIX all run on microcomputers.
