Sunday, 20 December 2015

Software

Software




What is a software:
Software is a set of instructions given to computers to perform a particular task.
It is also called program



Types of software:
There are 2 types of software:
o   System software
o   Application software



System software:
Systems software includes the programs that are dedicated to managing the computer itself, such as the operating system, file management utilities, and disk operating system (or DOS).If we think of the computer system as a layered model, the system software is the interface between the hardware and user applications.
Categories:
       Operating system
       Utility programs
       Device drivers


Application software:
Application software, or simply applications, are often called productivity programs or end-user programs because they enable the user to complete tasks such as creating documents, spreadsheets, databases, and publications, doing online research, sending email, designing graphics, running businesses, and even playing games!
Categories:
              Custom built
              General purpose


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