what is Software?


what is Software?
Computer needs instruction to tell it what to do, how to do and when to do. Thus the electronic instruction well defined and well organized, that people write to tell the Hardware what to do to get desired results are called programs. Software   refers to a set of programs that makes the hardware perform a particular set of tasks in a particular order. Software can be classified mainly in two categories as follows.

1.      System Software
a.      Operating system
b.      Utilities


2.      Application Software
a.      General Purpose
b.      Compliers for high level Languages


1.      System software is responsible for the running of the computer and management of computer resources. Operating System (OS) falls under this category.

An operating system is system software that provides an interface for a user to communicate with the computer, manages hardware devices (disk drives, a keyboard. A monitor, and so on), manages and maintains disk file systems, and supports application programs. Some of the popular operating systems are, DOS, UNIX, UNIXWARE, WINDOWS,OS/2 WARP, WINDOWS NT, WINDOWS 2000, WINDOWS XP AND LINUX etc.

Although OS developers try to provide all the features users need to use and maintain their systems, inevitably, they do not meet everyone’s expectation. This has led to another type of system software called utilities. These are programs that bridge the gap between the functionality of an Os and the needs of users. Utility programs are a broad category of software. They range from programs that can organize or compress the files on a disk to programs that provide a menu interface to a command-line OS.

 
For example,
Norton Utilities, Antivirus software, Network resources management etc.

2.      Application Software
There are two types of application software:
a.      General purpose software:- for creation of files of various types.
b.      Computer language:- for designing customized applications.


a.      General purpose Application Software
These are user- friendly software to help the user write letters, analyze numbers, sort files, draw pictures and even lay games. It is a group of programs that provide general purpose tools to solve specific problems. Some of the application software are listed below:

Word processing software like:
Word Star
Word Perfect
MS-Word
Data analysis (Spreadsheets):
Lotus 1-2-3
SCO Professional
MS-Excel
Data Management:
Dbase IV
Fox plus
FoxPro
Ms-Access
Lotus Approach
Oracle
DB2
SQL Server

Desk Top publishing:
Ventura
Page maker
CorelDraw
Press Works etc.
Graphics Tools:
                                      Adobe Photoshop
                                       Paint Shop Pro
Presentations:
Microsoft PowerPoint
Presentation Graphics
Internal Browsers:
Microsoft Internal Explorer
Netscape Navigator   

Comments

Post a Comment

please do not enter any spam link in the comment box

Popular posts from this blog

Glaucoma/eye pressure/treatment/surgery/symptoms/causes/tests/sign

Image
            GLAUCOMA Glaucoma overview: glaucoma history what is glaucoma? symptoms and sign glaucoma causes risk factors Screening glaucoma treatment glaucoma tests 1. Glaucoma History:           Glaucoma was first observes by Richard Bannister in 1622. He saw that the eye be grown more tight,strong and concrete. But in 1851 sir Herman Helmholtz  classify or describes the pathological hallmark of glaucoma the optical nerve head due to retinal ganglion cell loss. After some time later research find out  that insufficient blood supply low or irregular blood pressure to the retina and optical nerve head. 2. what is Glaucoma: Glaucoma is a troop of eye infection which event in harm to the optical nerve and outcome vision loss. The biggest common type is open angle glaucoma, in which the sewerage angle for fluid with in the eye remains open but with low common types as well as closed angle glaucoma and normal-tension glaucoma.             Open angle glaucoma
Read more

Foot in human body

Image
                FOOT FOOT • SOLE OF THE FOOT • THICK AND HAIRLESS. • IT IS FIRMLY BOUND DOWN TO THE UNDERLYING DEEP FASCIA BY NUMEROUS FIBROUS BANDS. • THE SKIN SHOWS A FEW FLEXURE CREASES AT THE SITES OF SKIN MOVEMENT. • SWEAT GLANDS ARE PRESENT IN LARGE NUMBERS. FOOT • SENSORY NERVE SUPPLY: • MEDIAL CALCANEAL BRANCH OF THE TIBIAL NERVE - WHICH INNERVATES THE MEDIAL SIDE OF THE HEEL; • BRANCHES FROM THE MEDIAL PLANTAR NERVE- WHICH INNERVATE THE MEDIAL TWO THIRDS OF THE SOLE • BRANCHES FROM THE LATERAL PLANTAR NERVE - INNERVATE THE LATERAL THIRD OF THE SOLE FOOT • DEEP FASCIA • THE PLANTAR APONEUROSIS IS A TRIANGULAR THICKENING OF THE DEEP FASCIA THAT PROTECTS THE UNDERLYING NERVES, BLOOD VESSELS, AND MUSCLES. • ITS APEX IS ATTACHED TO THE MEDIAL AND LATERAL TUBERCLES OF THE CALCANEUM. • THE BASE OF THE APONEUROSIS DIVIDES INTO FIVE SLIPS THAT PASS INTO THE TOES. MUSCLESOF THE FOOT • CHIEFLY CONCERNED WITH SUPPORTING T
Read more

Tattoo effects

Image
Harmful effects of Tattoo 1.       Hepatitis: It is major health risk that you may be subjecting yourself to by getting a tattoo is Hepatitis. Hepatitis is caused by sharing needles that are not sterilized properly after being used on someone else. 2.       Skin Cancer: Tattoo   can also cause skin cancer if they affect your skin and body in extreme ways. A notable number of cases have come up where tattoos have led to melanoma or cancer in the skin cells. 3.       Infections: The tattoo needles harbor more germs than you can imagine. According to a study by the   Tulane University school of Medicine, 3% of all tattoo get infected and people may experience persistent itching or irritation on their tattoos. 4.       Complications in medical procedures: During medical procedures, metal-based tattoo inks may interfere with result of an MRI-Scan or an X-ray and similar tests. It may also lead to swollen skin where the tattoo is or even serious burns.
Read more