Advantages and disadvantages installing a new software product

Does a new software product always provide a fundamental improvement to the system where we install the new software product? What could some of the gains include?

Linux Features

Please help me find the answers for the problem below (at least 6-10 features and outline the main ideas of each features). Outline of the important features of Linux.

Linux, Novell, Mac, MS

§ Do you agree or disagree that the Linux-Novel partnership now presents a viable alternative to Microsoft® in the business world. Why or why not? § Linux is continuing to make inroads into the business world. Will this trend continue in the future? Why or why not? § Because there are alternatives between Microsoft, Linux and Macintosh®, what would make an individual choose one alternative over the other? P.S. The first question should be the relationship between Novell(Linux) and Microsoft.

Octal Value for UNIX file permissions

Can anyone explain to me how to convert a octal value for UNIX file permissions to a text value to display on screen. For example I need to write code in C++ that would take in octal value 100666 and display rw-rw-rw I have found this information but still can not figure out the conversion. Octal digit Text equivalent Binary value Meaning 0 --- 000 All types of access are denied 1 --x 001 Execute access is allowed only 2 -w- 010 Write access is allowed only 3 -wx 011 Write and execute access are allowed 4 r-- 100 Read access is allowed only 5 r-x 101 Read and execute access are allowed 6 rw- 110 Read and write access are allowed 7 rwx 111 Everything is allowed

Windows XP Maintenence

A hard drive must be maintained to be used most efficiently. This maintenance includes deleting old files, defragmenting a drive so that it does not waste space, as well as, from time to time, finding and attempting to correct disk failures. Using the Internet, and Windows XP Help and Support, research what maintenance should be performed on hard drives. Your response must include the type of maintenance, when it should be performed and the risks of not performing the maintenance.