Topic

Topic

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  Topic Computer Software Submitted by: Hassanraza Shahroz Ashraf Khalil Nisar Miqdad Zumar
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  Software: A set ofinstructions given to the computer to solve a problem is called Software.” “Software is a single/collection of programs that performs a particular task Software is a set of instructions data or program used to operate computer and execute specific task Custom software Custom software (also known as tailor made software's)is software that is specially developed for some specific organization or other use Packaged Software Packaged Software is a Software that is ready-made and available for sale, lease , or license to the general public. Free ware: Free ware is the software that is freely available to public but author has a copyright, means that you can only use it ,not sell it Software Concept A computer consistof two parts Hardware& Software. Without softwareour computer behaves like a car without petrol.
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  A software isset of programs, which are the set of instructions. These instructions are written in a special computer language that computer can understand. These languages are known as Programming Languages. A computer can neither think nor make any decision its own. Also it is impossible for any computer to independently analyze a given data and follow its own method of solution. It need a program to tell it what to do with data. Types Of Software  System Software  Application Software System Software System Software is a software design to provide a platform to other software examples include operation system like. Microsoft window industrial automation It enables application programs to execute properly It consists of the basic operations as follows: ▫ Saving data on disk ▫ Making computer to work for us ▫ Printing a document etc. WHAT IS BOOTING Booting means to load and initialize the operating system on a computer machine. When start a computer, it loads the operating system into the computer's memory. This process is called booting It can happen in two ways which is warm boot or cold boot Language translator
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  A program thatconvert programming source code to machine readable codes are known as language translator. Types: There are three types of language translator  Interpreter  Compiler  Assembler Interpreter This is a program that convert high level language to machine level language i.e. Machine level language. The basic property of Interpreter is that it first scan one line of a program or source code, if this is error free then it executes either it will stop the execution. So a interpreter will check a program line by line and execute it, if it is error free. This process takes more time in execution of any program. Compiler A compiler is a program used to covert high-level language into machine level. The basic property of compiler is that it first scan all file at a time and check for any error, if no error found then change the program to machine level either show all the errors present in the program. So it takes very less time for execution Assembler An assembler is a program written to convert assembly level language to machine level language Operating system An operating system is the system software which is used to operate the computer.
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  An operating systemmanages a computer resources very efficiently, takes care of scheduling of multiple jobs for execution An operating system are classified in different categories with there performance Single user operating system: A single user operating system give the permission to run or execute one application or program at a time. That is one user can work at a time. e.g.- MS- DOS Multi-user Operating system A multi-user operating system give the permission to many users work at same time. A transaction process system such as railway reservation system need of hundred of terminals under a single program is example of multi-user operating system The Graphical User Interface (GUI) operating system A GUI uses graphical components like small images, pictures to represent a program, so that instead of typing it we just select it using pointing devices like Mouse etc. Ex. Windows 3.1, Windows-95/98/2000/ME/XP, Linux etc Utilities Utilities software is system software which is manufactured to help to analyze, configure, optimize or to maintain a computer .It also helps in maintenance and problem solving of a computer. Common types of utility program Hardware utilities Virus-detection and recovery utilities File-compression utilities Spam and pop-up blocker utilities Backup
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  Uninstall Application Software Application softwareis a set of one or more programs designed to solve a specific problem, or do a specific task Application software is used to perform various applications on the computer Actually the application software consists of programs that are designed to make users more comfortable or productive to assist personal tasks The application software is present on computer hard disk Application software can also be stored on CDs, DVDs, and flash or keychain storage devices Some commonly known application software are . Word-processing software:- It make use of a computer for creating, editing, viewing, formatting, storing, retrieving, and printing documents. Spreadsheet software:- Spreadsheet software is a numericdata-analysis tool that allows us to create a kind of computerized ledger. (Contd..) . Database software:- A database is a collection of related data stored and treated as a unit for information retrieval purposes. . Graphics software:- It enables us to a computer system for creating, editing, drawings, pictures, graphs, etc. . Education software:- Education software allows a computer to be used as a teaching and learning tool. Entertainment software:- It allows a computer to be used as an entertainment tool. Type Of Application Software  Proprietary A Proprietary software is a licensed software under exclusive legal right of owner.
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   In-house In-house softwarewe develop application with the help of company resources  Off-the-shelf An existing software program that can be used without any changes expected.  Contract The software which is developed for a specific company for their requirement. Open-Source Software . Open-source software: software freely available to anyone in a form that can be easily modified • Some widely used open-source software packages: Linux OS, Free BSD, Apache ,Sendmail , Perl Open-source software is often more reliable and secure than commercial software Open-source systems can contain hidden costs, particularly for user support or solving problems with the software Personal Information Manager Software  A personalinformation manager (PIM) is application software that includes an appointment calendar, address book, notepad, and other features to help users organize personal information.  Mobile devices such as smart phones and PDAs include, among many other features, PIM functionality.
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  Document Management Software Documentmanagement software provides a means for sharing, distributing, and searching through documents by converting them into a format that can be viewed by any user. A popular file format that document management software uses to save converted documents is PDF (Portable DocumentFormat), developed by AdobeSystems Free ware  Free ware is the software that is freely available to public but author has a copyright, means that you can only use it ,not sell it Examples Antivirues