Computer Science Class: VII

Time: 2 hrs 30 mins Total Marks: 100
Subject: Computer Science                      Class: VII
Name:  ________________________                      Date: __________

Questions
1 2 3 4 5 6 7 8 9 10 Total Marks
Marks Obtained




Instruction:
Attempt all the given questions.
Cutting, erasing and over writing in any answer will be considered as incorrect.
Separate sheets will be used for subjective section.

OBJECTIVE
Marks: 40                           Time:40 mins

Q1. Fill in the blanks with suitable words.     (10)

________________ is used to link computers which are present in the same setting or geographic location.
_________________ can be spread over different cities or countries and contains many LANs.
Different countries are linked together through ______________ and it contains enormous amounts of data.
Internet consists of more than __________________ networks which are spread in over 150 countries worldwide.
_____________________ is a very cost effective way to transfer documents around the globe.
Through ___________________ people can interact with each other through computers and they do not have to be physically present at one location.
Different utility items can be purchased through the _________________ without having to go outside the house.
The World Wide Web consists of more than ___________________ websites.
An operating system can either be __________________ or multitasking.
________________ means performing two or more functions simultaneously.

Q2. Write T for true statement and F for false statement.     (10)

LANs are most common in building where there is no flow of information.    _______
WANs are not limited to a specific building or settings.                                  _______
Internet is the type of WAN which is spread in major areas of the globe.        _______
Internet does not allow its users to chat with each other on a regular basis.    _______
A website can have as less as one page and as many as millions of pages.      _______
The first page of any website is called a “homepage”. _______                             
The e-mail is stored in some database and the recipient can read it at his own convenience.   
_______
E-mail is an expensive medium. _______
Sending e-mail is not easy. _______
Internet allows its users to shop online.                                                            _______                       
Q3. Chose the correct option. (10)

Control Panel has all the icons of softwares and :
 Freeware b.    hardware
The battery which supplies power to PC is called:
  CMOS b.     DMOS
DNS stands for:
   Domain Name Server b.     Domain Name Service
You can recover data from bad sectors by using softwares like:
   Norton Utility b.     National Utility
To decompress files you must use softwares like:
   Winzip b.     Unzip
Computer problems can be of _______________ types. 
  two b.    three
The process of ____________ constructs sectors and tracks on the surface of each plate.
   formation b.    creation
A register is a small data bank used to store __________ information.
   temporary b.    permanent
A hard disk contains numerous _____________ plates.
   plastic b.    magnetic
 ______________ register stores the result of latest calculations.
  Accumulator b.    Address











Q 4. Match column A with column B to make sensible sentence. (10)

Column A Column B
Operating system is need for every computer to two or more programs at one time.
An operating system can either be single tasking or single tasking
 All operating system have not the capability of opening function properly.
Embedded computers are multitasking.
Freeware are softwares protected by copyrights storage space of a disk.
A hard disk is always formatted before the program to half its size.
Disk compression software increases the which can be copied from the internet.
A good compression software can even reduce storing data on it.
The purpose of Bus line is to electronically transport data CPU
Registers are located in the from one place to another within the computer.












Subjective Part
Marks: 60                   Time: 1hr 50 mins

Write detailed answers to these questions.

Q 5. How many types of computer problems are generally faced and what are they? (10)
Q 6. What is the importance of control panel? (10)
Q 7. What are the advantages of Internet? (10)
Q 8. How can you solve your email problems?                     (10)
Q 9. What do you understand by the term “compatibility”?            (10)

Lab Activity
Q 10. How do you clean a mouse? (10)






















Answer Key

Q1. Fill in the blanks with suitable words. (10)

LAN
WAN
Internet
100,000
Internet teleconferencing
Internet
50,000
single tasking
multitasking


Q2. Write T for true statement and F for false statement.     (10)
F
T
T
F
T T
T
F
F
T


Q3. Chose the correct option. (10)

hardware vi. three
CMOS vii. formation
Domain Name Server viii. temporary
Norton Utility ix. magnetic
Unzip x. Accumulator














Q4. Match column A with column B to make sensible sentence. (10)

Column A Column B
Operating system is need for every computer to two or more programs at one time.
An operating system can either be single tasking or single tasking
 All operating system have not the capability of opening function properly.
Embedded computers are multitasking.
Freeware are softwares protected by copyrights storage space of a disk.
A hard disk is always formatted before the program to half its size.
Disk compression software increases the which can be copied from the internet.
A good compression software can even reduce storing data on it.
The purpose of Bus line is to electronically transport data CPU
Registers are located in the from one place to another within the computer.