StudentShare solutions
Triangle menu

Operating system as a heart of the computer - Essay Example

Not dowloaded yet

Extract of sample
Operating system as a heart of the computer

Operating systems are what most people use to interact with computers today. Desktop and laptop computers come with pre-loaded operating systems, and it is through these that the users interact with the software and applications. The operating system also takes care of all the processes so the user doesn't have to be a computer expert to use his machine. Operating systems are all about making computers available to the average person, with little technical knowledge required.
Just as there are many types of computers, there are different types of operating systems. Most people know about single-user, multi-tasking operating systems, such as like Windows and Mac OS, which are on desktop and laptop personal computers. These systems are designed for one person to use to run many applications at once. (Coustan and Franklin)
It is not just personal computers that have operating systems, however. Operating systems that have virtually no user interface capability and are running machines that are imbedded in various objects, like computers in cars, are known as real-time operating systems. Cell phones and personal digital assistants (PDA) use single-user, single task operating systems, as the equipment is designed to perform only one task at a time. There are also multi-user operating systems that allow many users to use the machine at the same time. A mainframe computer system is an example of this. (Coustan and Franklin)
A single-user, multi-tasking o...
(Coustan and Franklin)
In managing the processor, the operating system has to make sure that the processor's power is being allocated around in the most efficient way possible. The operating system gives priority to background processes that need to run, such as virus checking and memory management. Applications are the programs with which the user is directly working, such as an internet browser, word processing program, or a video game. By managing the processor, the operating system will not allow the applications to take processor power away from the processes that need to run for the system to function properly. (Coustan and Franklin)
Memory management goes hand in hand with processor management, as the operating system needs to allocate memory for the processes and applications to run efficiently. The operating system and drivers for hardware take up memory, and the operating system must allocate the remaining memory needed for applications. There are four different types of memory that all must be managed:
Disk storage - The operating system allocates data to available spots on the hard disk, a practice known as virtual memory management
High-speed cache - The operating system predicts which pieces of data the computer will need to access and stores them in this fast, temporary cache for quicker performance.
Main memory - This is the RAM that specifies how much memory your machine has when you buy a new computer.
Secondary memory - This is the memory that keeps the data from active applications available. (Coustan and Franklin)
In device management, the operating system also talks to the hardware in the computer by way of programs called drivers. Drivers are used so that the operating system doesn't have to keep track of hundreds of ...Show more

Summary

When John W. Mauchly first wrote about "pocket computers" in a 1962 New York Times article, few paid attention or took it seriously. The concept of a computer being in every home and users utilizing their features daily was not one many people gave much thought…
Author : beaulah74
Operating system as a heart of the computer essay example
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Operating system as a heart of the computer"
with a personal 20% discount.
Grab the best paper

Related Essays

Multics Operating system
The birth of operating systems extensively improved the process of communication, calculation, file storing, etc. Thus, this treatise shall contain an overview and discussion pertaining to the introduction of one of the most reliable and sophisticated operating systems ever developed: Multics.
7 pages (1750 words) Essay
Operating system
In this regard the computer needs an operation system to achieve the following; Human interface The computer has to have a way of presenting this data to the human level in a language and a format which is understandable. The way the processor operates on data is not the way the human would be able to read or use the data.
4 pages (1000 words) Essay
Operating System Essay
"An operating system (commonly abbreviated OS and O/S) is the software component of a computer system that is responsible for the management and coordination of activities and the sharing of the resources of the computer." ( Wikipedia, 10 September 2008).
3 pages (750 words) Essay
Operating System
This allows it to become a host which manages the other software running in the machine. With this position, the OS makes functioning of computers more efficiently by relieving application programs from managing these tedious tasks. The importance of the operating system to any computing device can never be overstated.
4 pages (1000 words) Essay
Operating System
Knowledge base search is one of the best support options available on Microsoft’s website. It is a database full of technical articles
1 pages (250 words) Essay
Comparison of Operating System Kernels
Each of these components facilitates the core unit to operate and provide us with what we see outside. Kernel is one of the important parts of the operating system and it can be termed as the core unit and heart of operating system. It provides
11 pages (2750 words) Essay
Comparison of Operating System Kernels
Each of these components facilitates the core unit to operate and provide us with what we see outside. Kernel is one of the important parts of the operating system and it can be termed as the core unit and heart of operating system. It provides
11 pages (2750 words) Essay
Operating system
e user and the computer, because the user does not know the computer language of ones and zeros, and the operating system takes the responsibility of taking user’s commands and passing it on to the related software and hardware. The user uses the GUI of the OS to give commands
1 pages (250 words) Essay
Operating system
For example, we see the mouse pointer on the screen, and we move it hither and thither according to our requirements, to open folders and to browse the web. For a layman, it is
2 pages (500 words) Essay
Operating System
When an interrupt is generated, OS saves the current execution state by means of context switch. After saving the execution state, the OS executes the interrupt handler at the interrupt vector. Kind of interrupt that is generated by
7 pages (1750 words) Essay
Get a custom paper written
by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
Apply my DISCOUNT
Comments (0)
Rate this paper:
Thank you! Your comment has been sent and will be posted after moderation