Why a Command Interpreter mostly separates from the Kernel and what are its uses? Can anyone brief a method to develop a new Command Interpreter using the System-Call interface feature in Operating system?

Please detail me with the difference between guests and host operating system in a VMware system and factors that need to be considered in choosing them.

How can i purchase the Android 2.1 OS

Any help is highly appreciated

I would like to know the benefits of using Virtual Machine Architecture in Operating System designing. Also, what are the advantages of Remote Desktop Machine architecture, Remote Host Control Machine Architecture and Web Server Architecture?

How can one obtain the statistical data of the time spent by a program in executing its code? Is it an important factor to be considered during programming? Please suggest.

I would like to know the advantages and disadvantages of Windows Operating System design, Kernel System design and Micro Kernel approach over system design. Earlier design is deeply appreciated.

How can we layer the system components of an operating system that are closely dependent on one another? If anybody has come across the similar scenario, please help.

Can you make time-locked key codes in a PC or in a Point-of-Sale terminal to sell to clients who use them on the computers in our Internet Café?

Need suggestions to develop a secure operating system for computers that do not provide the Privileged Mode to access the hardware directly?

What are the features that the Operating System of a Hand-held computer and Time-sharing system should have among the following: Batch programming, Virtual Memory and Time Sharing?