Wednesday, October 21, 2009

2.3.1.1 State the various types of OS used on different platforms.

The examples of OS used on PC platforms or IBM compatible computers are (1) Disk Operating System (DOS) & (2) Microsoft Windows XP.
DOS used a command line interface when Microsoft first developed it. Microsoft Windows XP’s operating environment is a Graphical User Interface (GUI). Both are closed source software.
The OS used on Apple platforms are Mac OS & Mac OS X. It is a closed source software & are targeted for use with home desktops and workstations.
Mac OS X is a multitasking OS & targeted for use with home desktops, workstations & servers. It has better security protection compared to Mac OS, for example the integrated firewall utility.
Cross-platforms OS are (1) UNIX & (2) LINUX. UNIX is a multitasking OS. Some versions of UNIX have a command line interface but most versions of UNIX offer a graphical user interface.
Linux is a popular, free, UNIX-like graphical user interface OS. It is an open source software. Linux provides a great deal of liberty to those that interact with Linux technology. Although Linux runs on many kinds of equipment, it is best known for its support of IBM-Intel PC-based hardware.

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