CBSE Class 7 Computer Science Worksheet Set F

Read and download free pdf of CBSE Class 7 Computer Science Worksheet Set F. Students and teachers of Class 7 Computer Science can get free printable Worksheets for Class 7 Computer Science in PDF format prepared as per the latest syllabus and examination pattern in your schools. Standard 7 students should practice questions and answers given here for Computer Science in Grade 7 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 7 Computer Science Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems provided here with solutions on daily basis to get more score in school exams and tests

A.) Answer the following :-
 
1.) What is a number system? Name the different types of number system used.
Ans:- The number system is a set of values used to represent different quantities.
The different types of number system are :-
 
(1) Decimal number system
(2) Binary number system
(3) Octal number system
(4) Hexadecimal number system.
 
2.) What are the rules to convert a decimal number into binary number?
 
Ans:- Rules to convert decimal number into binary number are:-
 
Step 1:- Divide the given decimal number with the base 2
Step 2:- Write down the remainder & divide the quotient again by 2.
Step 3 :- Repeat the step 2 till the quotient is zero.
 
3.) Write the rules to multiply two Binary numbers.
Ans :- The rules for performing multiplication using binary number is same as that of the decimal numbers. It can be illustrated by the following table.
C-7_Computer_(Chapter-1)
 
4.) Briefly explain the octal number system
Ans :- The concept of octal numbers system came from the Native American. The octal number system consists of 8 digits i.e., 0 to 7 with base 8.
 
5.) What do you understand by Hexadecimal number system?
Ans :- The Hexadecimal number system is also known as Hex, consists of 16 digits. i.e. 0 to 9 and the letters A to F represents digits 10 to 15 with the base 16.

1. Explain the following command along with syntax:

(a) CHKDSK (b) MKDIR

(c) CHDIR (d) RMDIR

2. Write about MS-Word? Write its five features.

3. How will you add clip art in MS-WORD?

4. What do you know about MS-Access?

5. What are the "rules" of BASIC programming?

6. What is HTML? What are the advantages of HTML?

7. Define: "Internal and External commands"

8. Draw the structure of a Disk which shows Tracks and Sectors?

 

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