My Prentation topics is:

Computer Software and Hardware&

if . . . Then . . . else

Content Definition of Software & Hardware. Why Learn About Software? Types of Software. Difference of Software & Hardware. if . . . Then. . . else statement. if . . . Then. . . else flowchart. if . . . Then. . . else example. Conclusion

Definition of Software & HardwareSoftware: Software refers to collection of programs .Software package: It’s programs that slove a specific problem.Hardware: The physical devices that a computermade of are refered to as hardware.

Why Learn About Software? Software is indispensable for any computer system. Systems software needed for input, calculations, and output Personal tasks using software

InIcome tax preparation Keeping a budget Internet research Games

Types of Software:Three types of software are:

System Software Application Software Open source Software

System Software:System Software includes the Operating System and all the utilities that enable the computer to function.

System Software: System software is the programs that control and manage the basic operations of a computer.Example: Operating Systems, Compiler, Loader, Linker, Interpreter.

Operating System:Operating System is a software, which makes a computer to actually work. It is the software the enables all the programs was use. The OS organizes and controls the hardware. OS acts as an interface between the application programs and the machine hardware.

Examples: Windows, Linux, Unix and Mac OS, etc.

Application Software:Application Software: Application software slove a specific problem or to do a specific task.Example:

Payroll systems, Manage student database, Word Processor, Spreadsheet and Database Management System etc.

Word Processors: Word processing is a tool that helps user in

creating, editing, and printing documents.   Spell checking Standard layouts for normal documents Have some characters appear in bold

print, italics, or underlined Save the document so it can be used

again print the document.

Examples: WordPerfect and Microsoft Word

Open Source Software:Open Source Software: Open source software is computer software whose source code is available under a license that permits users to use, change, and improve the software, and to redistribute it in modified or unmodified form.Example:

Linux, Netscape, Apache, etc.

Difference of Software & Hardware

Software HardwareSoftware refers to collection of programs .

Hardware is physical part computer that cause processing of data.

Software cannot be executed without hardware.

Hardware cannot be perform any task without software.

Software cannot be touched. Hardware can be seen and touched.

Software is reinstalled if the problem is not sloved.

Hardware is replaced if the problem is not sloved.

if . . . Then. . . else statement:An if statement can be followed by an optional else statement, which executes when the boolean expression is false.

Syntax: The syntax of an if...else statement in C programming language is:

if(boolean_expression){ /* statement(s) will execute if the boolean expression is true */}else{ /* statement(s) will execute if the boolean expression is false */}

if . . . Then. . . else flowchart:

Yes No

Then else

Start

If(condition)

Process 2Process 1

End

if . . . Then. . . else example: Write a C program to check a number using if . . . else entered by user is even or odd ?

#include<stdio.h>int main(){ int number; printf("Enter a number: "); scanf("%d",&number); if(number%2==0) printf(“\n%d Is Even\n”,number); elses printf(“\n%d Is Odd\n”,number);}

Output result is:

ConclusionAs Both software & hardware Complementary to each other .By the installation of software in computer hardware the user can access the computer components and can do the desired job.An if statement can be followed by an optional else statement, which executes when the boolean expression is false.