Perfect Computer Notes

Q1. Define software. Explain different types of software. Software is a set of instructions that tell a computer what to do. Examples of software are: MS Word, MS EXCEL, MS POWER POINT, WinZip, Norton Anti Virus, MSN Messenger, MS Windows, DOS, Unix Q2. Explain different types of software. The main types of software are system software and application software. 1 . System Software System software is a set of programs to implement certain functions in a computer system. It controls the operations and components of a computer system. Examples of system software are as follows: •   Operating Systems: Operating system is a software to control overall operations and components of a computer system. e.g., Windows, Unix, Linux and Dos etc. •   Utility Programs: Utility program is used to solve a particular problem of software or hardware, for example, Antivirus program, disk scanner and File Viewer etc. •   Device Drivers: device drier is a software that permits a co

Software Software is a set of instructions that tell a computer what to do. Software is the set of instructions given to computer to perform a task or to control operations of computer. Software cannot be touched. There are two main types of software - Application software and System software . The hardware cannot perform any task without software. Software is installed on hard disk . When we use any software it is loaded into RAM from hard disk. What is Software? Examples of software are: MS Word MS EXCEL MS POWER POINT,  WinZip Norton Anti Virus MSN Messenger  and MS Windows etc.             Microsoft WORD: MS Word This software is used to prepare letters, applications, office documents and all types of documents and books etc. Microsoft Excel: MS Excel It is used calculations and preparing electronic worksheets for example creating Employees Pay Sheet or Students Result Sheet.           MS POWER POINT: It is used to prepare