SCL Question 3 : Operating System and File Management

This task is completed by :

1. NURUL ASYIKIN BINTI ZURAIMI
2. NASUHA BINTI ABU BAKAR

1. List down all the operating system used in a desktop/laptop today and find good descriptions of how operating systems work? Hence, state their advantages and

disadvantages.

The operating system used today:

 Microsoft Windows

 Mac OS

 Linux

How operating systems work?

An operating system (OS) is a collection of software that manages computer hardwareresources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function.

An operating system helps the computer do a lot of amazing things, and, broadly speaking, it works in two basic ways:

·         First, the computer's operating system coordinates the demands that the computer's software makes on its hardware, especially the central processing unit. Each piece of software running on the computer ideally would like to have the undivided attention of its hardware. It's the operating system's job to make sure that each application gets its fair share of the computer's finite resources in the most efficient way possible.

·         Second, the operating system provides a consistent set of rules for applications to use in order to be able to interface with the computer's hardware. The system's application program interface lets developers create software that will run on computers of the same type even if the hardware is different or open to change.

Advantages and Disadvantages of Operating Systems

	Advantages	Disadvantages
Microsoft Windows	wide spread	not strong enough for high security
	not very expensive (only for home users on mature products), but more expensive than Linux.	buggy
	supported by most popular softwares
	Big in size
	Source codes are closed
Mac OS	not easily affected by the virus.	could not be assembled on its own
	High Performance.	the software is incomplete and does not match play games
	User-friendly	Expensive
		Only useful for graphic designers
		can not be used at the same time
Linux	Do not need to pay for a copy	Many Windows programs will not run in Linux
	Easy to install	Smaller selection of peripheral hardware drivers
	Very stable	Learning curve for new people to Linux
	Less vulnerable to computer malware
	Does not slow down over time
	Can breathe new life into old computer