BAHRIA MODEL SCHOOL & COLLEGEKARIM NCRE LYARIClass: IX (KB)Total Marks: 40Subject: Computer ScienceTime Allowed: 1 hourSECTION A (Multiple Choice Questions) (10)Q1.Choose the correct answer for each from given options.1.Computer is an . Device.a) Electrical b) Electronics c) Hardware 2. is known as the father of computinga) William ougthred b) Blaise Pascalc) Charles Babbage3.Physical components of computers are called..a) Softwareb) Hardwarec) Firmware4.. port is reliable.a) Serialb) Parallel c) Both of them5.There are basically types of registersa) Fourteen b) Eightc) Sixty five 6.Bus is set of that is used for communicationa) Processors b) Wiresc) Registers 7.Screen output is known as .a) Livewareb) Softcopyc) Software 8.Printers resolution is measured in.a) Data per Inchb) Dots per Inchc) Character per Inch

9.. Is low level languagea) Englishb) Machinec) Binary 10.Pascaline was introduced in ..a) 1964b) 1764c) 1642 SECTION B SHORT-ANSWER QUESTIONS (18 Marks)Q 2: Attempt any SIX Questions from this section(i) What is input device? List the name of any five input devices.(ii) Define the term computer.(iii) Differentiate between RAM and ROM.(iv) Define hardware and software with examples.(v) Differentiate between internal and external memory.(vi) Why we need to translate source code to machine code?(vii) What is language translator? Why do we use it?(viii) What is port? List the name of ports.(ix) Differentiate between Impact and Non Impact printers.SECTION C DETAILED-ANSWER QUESTIONS (12 MARKS)Note: Attempt any one Question from this sectionQ 3. a)Draw a labeled diagram of CPU and explain in detail b)What is printer? Describe printers types in detail Q 4.a)What are the classifications of computer according to capacity? b)What is scanner? Describe scanners types in detail. Q 5.a)What is bus? Describe its various types in detail. b)Write a note on screen navigation and curser movement keys.

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