Class Four Computer Science Question | Class 4 Questions

Class 4 Computer Science Questions

Class Four Computer Science

1. Answer the following questions: 1×12=12

• a) Write any three features of computer
• b) Who invested adding machine?
• c) What is data?
• d) What is a cursor?
• e) What is mainframe computer?
• f) What are internal commands?
• g) What is constant?
• h) What is a file?
• i) What does scrollbar do?
• j) What is Windows notepad?
• k) How do play sound?
• l) Where does you can see date and time?

2. State True or false. 10×0.5=5

• a) Computer is a very intelligent.
• b) National Computer Centre was established in 1932 in Kathmandu.
• c) Input doesn’t refers to putting the raw data.
• d) F1,F2,F3 ………….. are called functions key.
• e) Mini computer is faster than microcomputer.
• f) Divide the decimal integer by 2 and encircle the remainder.
• g) REM is used to clear the screen.
• h) Microsoft Windows is developed by Microsoft Corporation.
• i) The Menu is not located just below the title bar.
• j) CE button clears the current calculation.

3. Fill in the blanks: 0.5×10=5

• a) There is a lack of ………. among people.
• b) ……….. invented first mechanical calculator.
• c) Do not touch any …….. part of floppy disk.
• d) ………. and ………… are other features of Microcomputer.
• e) ……… deletes a file.
• f) ………. is used to end the program.
• g) A ……….. is an organized collection of related information.
• h) The ………… contains the lines of different ………… for drawings.

4. Write down short notes on the following: 12

• a) Desktop
• b) Command
• c) Hybrid Computer
• d) Bit

Solves the following problems: 2.5×2=5

a) 1 1 1 1 1

24 23 22 21 20

b) 1 0 1 1 1

24 23 22 21 20