Class 9 Computer Chapter 2 Question Answer

Important MCQs and short questions notes of Class 9 Computer Chapter 2 Question Answer Chapter 2 Binary System in 9th Class Computer Science English Medium written by Sir Saud Khan. These computerized notes are very helpful in the preparation of Binary System class 9 for students of the Class 9 Computer Chapter 2 Question Answer these are according to the paper patterns of all Punjab boards.

• Binary System Multiple Choice Questions ( MCQs ) with correct Answers
• Note: You have four choices for each objective type question as A, B, C and (D) The choice which you think is correct; fill that circle in front of that question number. Use marker or pen to fill the circle. Cutting or filling two or more circle will result in zero mark in that question.
• Terminal consist of:  (A) Keyboard, Mouse and Printer  (B) Keyboard and Monitor  (C) Mouse and Monitor  (D) System unit and input / Output devices
• Which of the following is not a high Level Language:  (A) Fortron  (B) Basic  (C) C++ and C  (D) Assembly Language
• The CPU is a set of electronic circuitry:  (A) Simple  (B)  Moderate   (C) Complex  (D) Cheaper
• The number of buttons in joystick is:  (A) One  (B) Two  (C) Three  (D) Four
• The diameter of compact disk is:  (A) 5 Inch  (B) 4 Inch  (C) 3.5 Inch  (D) 8 Inch
• Who develop ASCII coding scheme:  (A) IBM  (B) Intel  (C) ISO  (D) OSI
• The De-Morgan’s Law states that:  (A) (a)(b+c)=(a)b+(a)c  (B) a+(b+c)=(a+b)+c  (C) a+b = (a)b  (D) (a)b = (b)a
• DATE is command:  (A) Internal  (B) External  (C) A and B  (D) None
• Which is extension of MS World files?  (A) .htm  (B) .xls  (C) .jpeg  (D) .doc
• A small graphic image used to represent command or file is called?  (A) Menu  (B) GUI  (C) Icon  (D) Color 

• Note: Section–I is compulsory. Answer any THREE (3) questions from Section–II and Answer any TWO (2) questions from Section–III. (SECTION–I)
• 2. Answer briefly and Four parts from the followings:
• (i) What is Micro Computer?
• (ii) What is Assembly language?
• (iii) What is the use of Computer in Business?
• (iv) COBOL and BASIC stands for.
• (v) What is output devise?
• (vi) What are Motherboard?
• 3. Answer briefly and Four parts from the followings:
• (i) State the use of microphone.
• (ii) What is meant by secondary memory?
• (iii) What is meant by random access memory? 
• (iv) What is the difference between bit and byte?
• (v) Subtract 10111101(2) - 01011101(2)
• (vi) What is binary number system?
• 4. Answer briefly and Four parts from the followings:
• (i) What are Boolean Variables?
• (ii) What is command Line interface?
• (iii) Define Compiler.
• (iv) What is computer Virus?
• (v) Define Desk top.
• (vi) What is the use of control panel in Windows?
•  (SECTION–II), Note: Attempt any Two questions.
• 5. Write a note on CPU and its parts.
• 6. What is Plotter? Explain Drum and Flatbed Plotter.
• 7. Simplify the Boolean function using K-map f(x,y) = x.y + x.y

• 2. Answer briefly and Four parts from the followings:
• (i) What is universal production code?
• (ii) Write down the drawbacks of vacuum tubes.
• (iii) Define Hybrid computer.
• (iv) Define the difference engine.
• (v) What is application software?
• (vi) Define system unit?
• 3. Answer briefly and Four parts from the followings:
• (i) What is the use of Joystick?
• (ii) What is SRAM?
• (iii) What is date Rate of Hard disk?
• (iv) Write any two difference between primary & secondary Memory.
• (v) Define Alphanumeric date.
• (vi) What is Hexadecimal Number System?
• 4. Answer briefly and Four parts from the followings:
• (i) What is Midterms?
• (ii) Define application Software.
• (iii) What is complier?
• (iv) What is Windows Desktop?
• (v) Write the Name of any two features of Windows.
• (vi) Define File Extensions.