Computer Knowledge & Tips

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  Unsolved Programs 1) Write a program to calculate and display the value of the given expression: a 2 +b 2   / a-b , when a=20 , b=15. Sol:- public class u1 {     public static void main()     {         int a=20, b=15, s=0;         s=(a*a+b*b)/(a-b);         System.out.println("The Output of given expression is "+s);     } }          2) Write a program to calculate the gross salary of an employee when  Basic Salary = Rs. 8600 DA=20% of Basic Salary HRA= 10% of Basic Salary CTA= 12% of the Basic Salary Gross Salary= (Salary+DA+HRA+CTA) Display the gross salary. Sol:-  public class u2 {     public static void main()     {         int b=8600, gross,da,hra,cta;         da=8600*20/100;         hra=8600*10/100;         cta=8600*12/100;       ...

LAB ACTIVITY: ( PAGE NO- 168) 1. Write programs in C++ for the following: a) Find the sum of first 10 natural numbers. b) Find the greatest among the three numbers. c) Find if a given year is a leap year or not.

1) Father of Computer is Charles Babbage 2) Father of Internet is Vint Cref 3) In the development of Computer Von Neumen shared his experience. 4) World's First Electronic Computer 'ENIAC' 5) First computer developed in India is 'Siddharth' 6) World's first computerized Post Office is in Delhi 7) India's Sillicon Valley is in Banglore 8) Computer Language founded by Sun Microsystem is 'JAVA' 9) Computer language which accepts Hindi Command is 'Pradesh' 10) Nick Name of IBM is Blue Bird 11) FORTRAN is the first ever computer language which was developed for programming. 12) IBM 1401 was the computer in which first time Transistor was used in place of Vacuum Tube . 13) Digital Equipment Corporation(DEC) staretd to manufacture the Mini Computers . 14) Integrated Circuit (IC) was developed by J. S Kilbi 15) The ascending order of a data hierarchy is– bite, byte, record, field, file, database 16) The blinking symbol on t...

Mr. Shravan Kumar (IT Engineer) " Success is not final; failure is not fatal: It is the courage to continue that counts." It's pleasure to say that IT field is improving day by day and minute by minute. Today, Everything controlled and managed by computer. Businesses and companies use a computer to do marketing and business planning, they use a computer to record customer data, they use a computer to manage goods and services etc. Computer with an internet connection is really important for businesses and individuals. You can understand and analyze the importance of computer by seeing a revolution in offline and online business, online education, online business, online communication and internet banking. To store, access, manipulate, calculate, analyze data and information we use hardware devices and software application. Schools and colleges around the world are using computer and internet technologies to teach students digitally and creatively with...

CONTROL STATEMENT-    The Control Statements are used for controlling the Execution of the program. We use control statements by two way 1) Unconditionally & 2) Conditionally GOTO STATEMENT- Unconditionally, we use GOTO statement. The Goto Statement is used for transferring the control to the other location for example- if you wants to transfer the control to the other place of the program then we can use the goto statement. When we use goto Statement then we have to supply a name along with a Goto Statement on which Control is transferred. The Name is user choice and Name must be defined with the help of a Colon. When Compiler transfers the Control of program to the Goto statement then statements of Goto block will be Executed and The Name of Goto Statements block is also called as the Label Name. GOTO statement uses line number or label Here, We will understand by an example CLS 1 PRINT " MY NAME IS  AMIT " :GOTO ABC 2 PRINT " I LI...