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Time-sharing is designed so that rapid switching between tasks allows the users to believe they have sole use of a scarce resource (CPU). If there is only 1 CPU present then only 1 task can run at a time.
With rapid switching it occurs so quickly that it appears as though multiple jobs (tasks) are being serviced.
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What is the use of execute command in unix?
There is no traditional 'execute' command in Unix.
Is it possible to use BSD software on Unix systems?
It is possible to use BSD software on Unix systems. It is possible but many do not and they use other softwares on Unix systems beside the BSD software.
Where you can use Unix?
Unix can be used on a large number of mainframes, servers, and workstations. If you would like to use a certified UNIX system on commodity hardware, Solaris 10 can be downloaded free of charge for non-commercial use.
Are there still people using unix?
Yes, quite a bit of companies and users use unix.
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 ..
Can you use a DOS formatted floppy in UNIX?
Yes you can. Unix understands both FAT32 and NTFS file systems.
Which is the most commonly used command for referencing detailed information about a particular command in UNIX?
In Unix, use the 'man' command.
How do you create a user in Unix?
Use useradd command
What command do you use to change your password on a Unix system?
Use the command 'passwd'
Does Linux use the kernel of Unix?
No, it is unix-based but Linux is a kernel not an operating system.Ubuntu,Linux Mint,Debian,and puppy Linux,ect. are OS's that use the Linux kernel.
What are the drawbacks of timesharing system?
Time is consuming,cpu switches are rapidly.
What is the difficulty in using UNIX?
The usual difficulty that people report concerning UNIX is the use of the command line. The command line has a lot of power and the commands may seem somewhat arcane at times. Like anything else, you have to study what the commands do and how to use them to harness the power of UNIX, but once you do that it isn't that difficult to use.
