Home work list for chapter 1 (XI)

 Chapter: Computer System (Practice Questionnaire)

Multiple Choice Questions

1.     1. Analog Computer works on the supply of:
a.       Physical strength
b.       Discrete Signals
c.       Magnetic Strength
d.      Continuous electric pulses
 
2.       Three main components of computer are:
a.       CPU, Memory, tape
b.       I/O, Printer, Mouse
c.       Tape, I/O, floppy disk
d.      CPU,1/0, memory
 
3.       Which parts of the computer were used for calculating and comparing?
a.       ALU
b.       MODEM
c.       Control Unit      
d.       Memory Unit
 
4.       The term GIGO is related to which characteristics of computers?
a.       Speed  
b.       Automatic
c.       Accuracy             
d.       Reliability
 
5.       Computer is free from tiresome and boardroom. We call it
a.       Accuracy             
b.       Reliability
c.       Diligence            
d.       Versatility
 
6.       Which of the following programming language were used in first generation computers?
a.       Machine Language
b.       Assembly Language
c.       Both of above   
d.       None of above
 
7.       Who used punched cards practically for the first time in the history of computers?
a.       Charles Babbage              
b.      Herman Hollerith
c.       Howard Aikin    
d.       Joseph Jacquard
 
8.        Integrated Circuits (ICs) are related to which generation of computers?
a.       First generation
b.       Second generation
c.       Third generation             
d.       Fourth generation
 
9.        A hybrid computer
a.       Resembles digital computer
b.       Resembles analogue computer
c.       Resembles both a digital and analogue computer
d.       None of above
 
10.    Chief component of first-generation computer was
a.       Transistors
b.      Vacuum Tubes and Valves
c.       Integrated Circuits
d.       None of above
 
11.    Performance of a supercomputer is measured in:
a.       Floating-point operations per second
b.       million instructions per second
c.       kilobits per second
d.       megabits per second
 
12.   Computers that are used in large organizations such as insurance companies and banks, where many people frequently need to use the same data, are
a.       Super Computers
b.       Hybrid Computers
c.       Mainframe Computers
d.       Desktop Computers
 
13.   In a traditional mainframe environment, each user accesses the mainframe's resources through a device called a 
a.       Node    
b.      Terminal
c.       Switch  
d.       Hub
 
14.   Terminal that doesn't process or store data and simply is an input/output device, functions as a window into a computer located somewhere else is called
a.       Low Terminal
b.       Super Terminal
c.       Dumb Terminal
d.       Intelligent Terminal
 
15.   Terminal which perform some processing operations, but doesn't have any storage is call.
a.       Low Terminal
b.       Super Terminal
c.       Dumb Terminal
d.      Intelligent Terminal
 
16.   Minicomputers are also called
a.       Hybrid Computers
b.       Super Computers
c.       Midrange Computers
d.       Analog Computers
 
17.    Mobile computing allows transmission of data from one wireless-enabled device to another
a.       any device
b.       wired device
c.       wireless-enabled device
d.       None of above
 
18.   ……………….are numbers and encoded characters, generally used as operands.
a.       Input    
b.      Data
c.       Information       
d.       Stored Values
 
19.   ……………..is generally used to increase the apparent size of physical memory.
a.       Secondary Memory
b.      Virtual Memory
c.       Hard-disk            
d.       Disks
 
20.    The main virtue for using single Bus Structure is…………………..
a.       Fast data transfers
b.       Cost effective connectivity and speed
c.       Cost effective connectivity and ease of attaching peripheral devices
d.       None of above
 
21.   Storage which stores or retains data after power off is called ………………………        
a.       Volatile storage
b.      Non-volatile storage
c.       Cache memory
d.       None of above
 
22.   The two kinds of main memory are:
a.       Primary and Secondary
b.       CDs and DVDs
c.       RAM and ROM
d.       Direct and Sequential
 
23.    RAM is also called as:
a.       Virtual Memory
b.      Volatile Memory
c.       Non-volatile Memory
d.       Cache Memory
 
24.   Which type of memory can read data bur can't write data?
a.       Random only memory
b.       Random access memory
c.       Read only memory
d.       None of above
 
25.   The main memory of computer is also called as
a.       Secondary storage
b.       Virtual memory
c.       Auxiliary memory
d.      Primary memory
 
26.   Which type of memory can speed up computer processing?
a.       ROM
b.      Cache memory
c.       Registers
d.       Both A and B
 
27.    Which memory is onboard storage?
a.       Random Access Memory
b.      Cache Memory
c.       Virtual Memory
d.       None of above
 
28.   USB-type storage device is
a.       Secondary Memory
b.       Primary Memory
c.       RAM
d.       ROM
 
29.   CD-ROM stands for:
a.       Compactable Disc Read Only Memory
b.       Compact Data Read Only Memory
c.       Compactable Read Only Memory
d.      Compact Disc Read Only Memory
 
30.   …………….. has the shortest access times.
a.       Virtual Memory
b.       Secondary Memory
c.       Cache Memory
d.       All of the above
 
31.    Programs stored in the ROM are called as:
a.       Fireware             
b.       Formware
c.       Farmware          
d.      Firmware
 
32.   Cache memory acts between
a.       CPU and Hard disk
b.       RAM and ROM
c.       CPU and RAM   
d.       All of these
 
33.   The main reason for the discontinuation of semi conductor based storage devices for providing large storage space is
a.       Lack of sufficient resources
b.      High cost per bit value
c.       Lack of speed of operation
d.       None of the mentioned
 
34.    The capacity of 3.5 inch floppy disk was
a.       1.40 MB              
b.       1.44 GB
c.       1.40 GB
d.      1.44 MB
 
35.   Magnetic tape is a type of………….access device.
a.       Sequential access
b.       Direct access
c.       Step      
d.       Indirect
 
36.   The number of characters/second that can be transmitted to the memory from the tape is denoted by the term.
a.       Data transfer rate
b.       Transmission mode
c.       Transmission rate
d.       Data mode
 
37.   The average latency depends on…….of the disk.
a.       Rotation per sec              
b.      Rotation per minute
c.       Rotation per hour
d.       None of the above
 
38.   The storage capacity of a dual layer Blu-ray disc is:
a.       20 GB   
b.       30 GB
c.       40 GB   
d.      50 GB
 
39.   The disks in which both the surfaces are used for recording are called ……………………
a.       Double-Sided (DS) disk
b.       Double Density (DD) disk
c.       High Density (HD) disk
d.       None of above.
 
40.   What is the main purpose of secondary storage device?
a.       To increase the speed of computer
b.       To install operating system
c.       To networking
d.      To Store data
 
41.   Microprocessor was introduced in which generation of computer?
a.       First Generation
b.       Second Generation
c.       Third Generation
d.      Fourth Generation
 
42.   Transistors are used in which generation of computer?
a.       First Generation
b.      Second Generation
c.       Third Generation
d.       Fourth Generation
 
43.   The ……….. pen is small input device used to select and display object on a screen.
a.       Ink
b.       Magnetic
c.       Light
d.       None of the above
 
44.   The device primarily used to provide hardcopy is the      
a.       CRT       
b.       Computer Console
c.       Card Reader      
d.      Printer
 
45.   A light sensitive device that converts drawing, printed text or other images into digital form is……………..
a.       Keyboard           
b.      Scanner
c.       Plotter 
d.       OMR
 
46.   USB refers to
a.       storage device  
b.       processor
c.       port type
d.       serial bus standard
 
47.   A bar code reader is an example of
a.       Processing device
b.       Storage device
c.       Input device
d.       Output device
 
48.   The OCR recognizes the………….of the character with the help of light source.
a.       Size
b.      Shape
c.       Color
d.       Used ink
 
49.   The term used to define all the input and output devices in a computer system is…………….
a.       Monitor
b.       Software
c.       Hardware
d.       All of the above
 
50.   The device primarily used to provide hardcopy is the ……………..
a.       CRT
b.       Input
c.       Printer
d.       Card reader

Short answers questions

1.      1. Why computer is known as versatile and diligent device? Explain.
2.       Compare and contrast between First and Second generation of computer.
3.       Compare and contrast between Third and Fourth generation of computer.
4.       Explain the fifth generation of computer.
5.       What is mainframe computer? Differentiate between super and microcomputer.
6.       Why Charles Babbage is called 'Father of Computer"?
7.       Describe the function of memory and processing unit of computer system.
8.       What is 'BUS' in the computer system? Describe the different types of BUS.
9.       What do you mean by peripherals? Differentiate between impact and non-impact printers.
10.   Define memory. Explain different primary memory used in computer system.
11.   Differentiate between RAM and ROM.
12.   Differentiate between DRAM and SRAM.
13.   What is input device? Explain any four input devices used in computer.
14.   What is output? List out the major features of non-impact printer with examples.
15.   What is laser printer? List out the major features of laser printer.
16.   What is output? Distinguish between CRT and LCD monitor.
17.   Differentiate between softcopy and hardcopy output.
18.   Explain work done by the control unit and ALU of a computer.
19.   Describe the differences between serial and parallel interfaces.
20.   What is mobile computing? Explain application of mobile computing.
21.   Define microprocessor. Explain its different types.
22.   Write short notes on the following:

·         Mark I

·         UNIVAC

·         Tabulating maschine

·         Abacus

·         Herman Hollerith

·         Jon von Neumann

·         MICR

·         Bus architecture

·         Mouse

·         Microprocessor

·         Mouse

·         Monitor

·         USB

·         Cache memory

·         Scanner

 

 

Long Answer Questions:

1.     What is computer? Explain the characteristics of computer system?

2.      2. What are the application areas of computer? Explain in details.
3.       What do you mean by Generation of Computer? Describe each generation of computer with the main technology used.
4.       Define the term ‘computer architecture’ and ‘computer organization’. Explain the different units of computer system with block diagram.
5.       Describe computer system with logical diagram.
6.       What is CPU? Explain the major unit of CPU.
7.       What is memory? Explain different types of memory present in the computer system with their uses.
8.       What do you mean by virtual memory? How does it differ from the main memory and secondary memory? Discuss.
9.       Explain the role of memory in a computer system and differentiate between main memory and auxiliary storage.
10.   Explain super, mainframe, mini and microcomputer with its features.