Class-11 || Computer Science || Questions Answer Solutions!

1. Who is called father of computer? Answer: Charles Babbage is called father of computer. 2. Define Cache Memory? Answer: Cache Memory is built in Memory of computer whose  speed is faster than other memory. 3. Expand ASCII. Ans American Standard Code For Information Interchange. 4. Name any one Multi-User Operating System. Answer : Windows 7 , Windows 10, Linux, Mac Os, Unix, Ubuntu 5. What is syntax error? Answer: Syntax error is an error of programming language. 6. Define Keyword. Answer: Keyword is a reserved word understand by the compiler. 7. Write any one escape sequence used in C++. Answer: \n New line \t Tab \v vertical tab \a alert \’ single quotes \” double quotes 8. Name the operator used with cout in C++. Answer: The output operator (<<) used with cout in c++. It is also   called insertion operator or put to operator. 9. What is the use of <math.h>? Answer: The use of math.h header file to embed mathematical  related function in c++ program. 10. Define an array. Answer: An array is a collection of similar types of data elements.