Operating System and Application Software

What is the Computer Operating System?

Operating system (OS) is the control language used to run computers. Examples of Operating Systems: Windows 98, Windows XP, DOS It's the first software we see when we turn on the computer, and the last software we see when the computer is turned off. OS can issue commands to computer parts (hardware) and send instructions to perform tasks. In other words OS can talk to hardware devices in your computer. Also it translate messages issued from your hardware to English or any other languages used by human.  For an example lets say you want to save a document. So you press save button. Operating system take your command and send instruction to the processor to save your file. Processor co-ordinate with your hard disk to save your file in the hard disk. In a nutshell OS controls the entire operation in your computer from the start of your PC to shutdown.

Suggestions for Choosing an Operating System

Consider Its Use

Consider what operating system will be used for. If the OS is for a business, an operating system that can handle important business data should be selected. If the OS is for a college student, one might consider an OS that is optimal for gaming, yet still has a nice word processor. Finally, if the operating system were for a new computer user, then a user-friendly, simple OS would be best. Knowing this, one must also consider what software is available for the operating system. Some software is only available on certain computers. This often leaves Macintosh OS X, Linux, and Unix in the dark because most of the computer market runs on Microsoft operating systems. Most computers come standard with a certain operating system (Apple computers have Mac OS X and most PCs have Windows XP). Therefore, it is sometimes important to consider the OS even when selecting a computer.

Security

Security is the biggest priority for many computer users, especially businesses. Some OS have stronger security than others. Macintosh has been called “the iron man of operating systems” because of its ability to keep hackers out, while Windows has been criticized for being easy to hack. Do not let security completely deter you, however. Most operating systems can be “hardened” and with constant security updates, made safer from hackers.

Pros and Cons of The Big Four

Every operating system has its positive and negative elements. There is no perfect operating system. Keeping this in mind, consider the most common operating systems (Mac OS X, Windows, Linux, and Unix). Mac OS X is great for keeping out hackers and for graphic design. However some problems are the fact that certain software is not available for Macs. If the OS is for a college student who would rather play Half-Life 2 than study, then Mac OS X is not the best choice. Windows is very good for compatibility, since most consumers use Windows. Windows also comes with applications like Microsoft Word, PowerPoint, Excel, and Internet Explorer. Unfortunately, Windows is weak against viruses and can get bogged down easily. Unix is good for networks, especially if for businesses. Unix has also been around for almost 30 years, so it is quite dependable. One drawback of Unix is the cost, which can sometimes be a bit expensive. Unix is also complicated, which can confuse beginners. The final OS, Linux, is free and completely customizable. However, one major drawback is the extreme scarcity of applications for Linux. Microsoft and other software developers are often very reluctant to release their products for Linux.

Conclusion

Whatever operating system one chooses, it needs to be the system that will best fit the needs of the consumer. All operating systems have good and bad elements. Understanding how each system works, and the system’s pros and cons is a must for anyone deciding on a computer and OS. An OS selection based on research and understanding will certainly yield the highest satisfaction.

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