Software Rachit

8/3/2019 Software Rachit

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Computer Software

Presented By :Abhishek GuptaRachit Kumar


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What is a Software

Some Definitions :

The computer Programs (sequences of instructions)that tell the computer what to do in response to a

command or event.The set of instructions that operatesvarious parts of

the hardware. Also termed as computer program

The Hardware needs Software to be useful; the Softwareneeds Hardware to be useful.

When the user needs something done by the computer,he/she gives instructions in the form of Software tocomputer Hardware.


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Computer Overview

DevelopmentTools

Special Applications

Hardware

OperatingSystemGraphics User Interface

Database Management

Software

Databases

Games


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A Basic Overview of Computer

Hardware

Operating System

Utility

LanguageTranslator

Device Driver

Scientific

Apps.

BusinessApps.

Productivity

Apps.

EntertainmentApps.

Systemsoftware

Application

software


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Software Classification


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Software : DetailedClassification

General-Purpose

Programs

FunctionOr

Application-Specific

Programs

SystemManagement

Programs

SystemDevelopment

Programs

ApplicationSoftware

ComputerSoftware

SystemSoftware


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SYSTEM

SOFTW

ARE


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System Software are programs that

Control the overall operation of the computerq OS

Interact directly with Hardwareq Device drivers

Perform system management & maintenance

q Utilities

Are used to develop or maintainother programsq Language translators


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System Software :Contd.

System Management Programs:

Programs that manage the hardware, software,network & data resources of computer systems

during the execution of various informationprocessing jobs of users, e.g. OS, Networkmanagement programs, DBMS, Applicationservers etc.

System Development Programs :Programs that help users develop information

system programs & procedures and prepare userprograms for computer processing, e.g.

Programming language translators, programming


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What is an OperatingSystem The most important program that runs on a computer.

An operating system, or OS, is a software program that

enables the computer hardware to communicate andoperate with the computer software. Without a computeroperating system, a computer would be useless.


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Functions of an Operating

System


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Functions of an OperatingSystem : Contd :


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Functions of an OperatingSystem : Contd :


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Trends in Computer Software

FirstGeneration

SecondGeneration

ThirdGeneration

FourthGeneration

FifthGeneration

User-WrittenProgramsMachine

Languages

PackagedProgramsSymbolic

Languages

OperatingSystemsHigh-Level

Languages

DBMSFourth-GenerationLanguages

MicrocomputerPackages

Natural &Object-Oriented

LanguagesMultipurpose

Graphic- InterfaceNetwork-EnabledExpert-Assisted

Packages

Trend

:TowardE

asy-to-U

se

Trend:T

ow


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Categories of ProgrammingLanguages

FirstGenerationLanguages orMachine

Languages:Use binarycodedinstructions

1001100111001101

Third GenerationLanguages orHigh LevelLanguages:

Use briefstatementsCompute X =

Y + Z

MarkupLanguages:Use embeddedcontrol codes

SecondGeneration

Languages orAssemblerLanguages:Use symbolic codedInstructions( mnemonics)

LODY

ADD

FourthGeneration

Languages:Use natural statements

Object-OrientedLanguages:Define objects thatcontain data and actions

Document.write

(HiThere

First heading

SUM THE FOLLOWINGNUMBERS


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Applica

tionSOFTW

ARE


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Application Software :Classification General Purpose Application Programs:

These are the programs that perform commoninformation processing jobs for end users. e.g.

word processing, spreadsheet, databasemanagement, graphics programs, web browsers& other groupware.

Function Specific Application Programs:

The packages available to support specificapplications of end users in business & other

fields.


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Task-Oriented Software

Productivity Software

Makes work fasterMakes our lives easier


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Word Processing

Uses Memos Reports Correspondence

Minutes of meetings Anything to be typed

Functions Create Edit

Format Store Print text and graphics


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Desktop Publishing

Uses

Newsletters Reports Brochures

Functions

Handles high-level publishing needs


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Electronic Spreadsheets

Uses Comparing mortgage interest rates Preparing budgets

Tracking weight loss

Functions Manipulates numbers in rows and columns Recalculates the results when a number is changed

What if?


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Electronic Spreadsheets


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Database Management

Uses Keep track of a large number of related facts Query the data for specific information

Retrieve information in a variety of ways Functions

Store data Update data Manipulate data

Retrieve data Print data in many forms Report on data in a variety of ways


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Graphics

Uses Maps Graphs

ChartsHelps to

Compare data Spot trends

Make decisionsVisual information is more compelling


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Presentation Graphics

Uses Sales tool Demonstrate a product

Show cost/benefit projections on charts Present audio/video testimonials from satisfiedcustomers

May contain Text

Graphics Audio Video


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Software for Workgroups

Groupware / collaborative software

Lets a group of people share information or track

information together Data being used is located in central database

Data can be accessed and updated by anyone in theproject group


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Software for Workgroups

Examples

Scheduling

Preparation of proposalsby several individuals


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Web Browsers

DiscussionGroups

Surf the Net LaunchInformation

Searches

E-MailMultimediaFile

Transfer

Typical uses of aWeb

Browser inInternet,

Intranet, andExtranetEnvironments


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Database Management Packages

DatabaseDevelopment

DatabaseMaintenance

DatabaseInterrogation

ApplicationDevelopment

Primary Tasks ofDatabase ManagementPackages


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Multimedia Technologies

Key

Technologiesof

Multimedia

Video CaptureCard AuthoringLanguage

Storyboard Compact Disk Interactive

Sound Board CompressedAudio

Digital Video

Interactive

MIDI Computer

Edit System

InteractiveVideo

Digital Audio


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Software as Service

Documents

Software Rachit