Download Revision Sheet 101 CS

Q1. Define: Digitization, monochrome and true color monitor.
Q2. What is the difference between RAM and ROM?
Q3. Write and graph in details about the computer units.
Q4. What is the difference between monochromic and true color images with respect to memory?
Q5. Name and describe three special-purpose input devices people commonly use in public
places, such as stores, banks, and libraries.
Q6. What are the differences between sequential access and random access storage
devices? What are the major uses of each?
Q7. A secondary storage device that can be written to is a:
CD-RW.
CD-ROM.
RAM.
DVD-ROM.
Q8. A ____________ is one of the few devices that accesses data sequentially.
floppy disk
DVD
CD-ROM
magnetic tape
Q9.All of the following EXCEPT ____________ are removable media.
zip disks
CDs
hard disk
magnetic tape
Q10. A USB ___________ is portable, can store hundreds of megabytes of data,
and
plugs into a USB port.
hard disk drive
RAM disk
flash drive
Hub
Q11.Platform independent means:
a mouse can be switched between a Mac and a PC.
hardware, like USB, can be run on both Macs and PCs.
any type of user, beginner or advanced, can efficiently use
a PC.
a computer can be a desktop or sit upright like a tower.
Q12.LCD screens are used only for portable computers.
True
False
Q13.Information is read much faster from a hard drive than from a floppy disk.
True
False
Q14. Access speeds are slower for optical disks than for magnetic storage.
True
False
Q15. A megabit is approximately:
1,000,000 bits.
1,000 bits.
one-half the size of a megabyte.
the same speed as a megabyte.
Q16.ALU stands for:
algorithm logic unit.
arithmetic logic unit.
application and logic unit.
arithmetic layered unit.
Q17.The ___________translates an instruction into a form that can be read by
the CPU.
RAM
ALU
cache
decode unit
Q18. Peripherals include Word, Excel, and Access.
True
False
Q19.A gigabyte (GB) is approximately 1,000 megabytes (MB).
True
False
Q20.The CPU is physically attached to the motherboard.
True
False
Q21.The CPU is physically attached to the motherboard.
True
False
Q22. ____________ use the same technology as a photocopier.
Laser printer
Dot-matrix printers
Plotters
magnetic tape
Q23. A scanner____________
is an output device
Is a pointing device
Converts any printed image into digital form
Uses LCDs
Q24. What is the difference between TCP and IP in the internet protocols?
Q25. Write four steps about how the people make programs.
Q26. What is the difference between Interpreted languages and Compiled languages?
Q27. Messages are sent through the Internet in packets and all packets of the same
message must be sent through the same route.
True
False
Q28. A connection through standard telephone lines and a modem is a:
cable modem connection
wireless connection.
Wi-Fi connection.
dial-up connection
Q29. What type of server stores Web pages, graphics, and audio to be viewed on the
Web?
Application server
HTTP server
Web server
File server
Q30. The programming language that most Web pages are created in is:
HTTP.
HTML.
SMIL.
XHTML.
Q31. What the differences between:
a) Minicomputer
b) Terminal
c) Mainframe
d) Supercomputer
Q32. Give examples for secondary storage, and input and output units.
Q33. What is the function of Modem? Write its kinds.
Q34. What is the wrong with this flowchart?
Q35. What the basic types of flowchart?
Q36. Match the following:
 .edu -
military sites
 .com -
nonprofit organizations
 .gov -
network administration sites
 .mil -
educational sites
 .net -
government sites
 .org -
commercial sites
Q37. What are the types of network topology configurations? Write advantage and
disadvantage for each one with drawing.
Q38. What are the components and basics of algorithm?
Q39. Write an algorithm to compute area of:
a) Circle
b) Rectangle
Q40. What is the meaning of SWAP algorithm? Give an example.
Q41. What would the binary number 1011 be in decimal notation?
1011=(1*2^3)+(0*2^2)+(1*2^1)+(1*2^0)=(1*8)+(0*4)+(1*2)+(1*1)=11
(in decimal notation)
Q42. Convert these numbers from binary to decimal:
10,
111,
10101,
11110,
10=(1*2^1) + (0*2^0) = 2+0 = 2
111 = (1*2^2) + (1*2^1) + (1*2^0) = 4+2+1=7
10101= (1*2^4) + (0*2^3) + (1*2^2) + (0*2^1)
+(1*2^0)=16+0+4+0+1=21
11110= (1*2^4) + (1*2^3) + (1*2^2) + (1*2^1) +
(0*2^0)=16+8+4+2+0=30
Q43. Convert decimal number (163) to binary number.
a[n]*2^(n-1) + a[n-1]*2^(n-2) + ............. +a[3]2^2+a[2]2^1+ a[1]2^0
Where each a[n] is either 1 or 0
If the n is odd put a[n]*2^(n-1) =1, If the n is even put a[n]*2^(n-1) = 0
163 is odd
a[1]*2^(0)=1 and 163-1=162
162/2=81 is odd
a[2]*2^(1)=1 and 81-1=80
80/2=40 is even
a[3]*2^(2)=0
0
40/2=20 is even
a[4]*2^(3)=0
0
20/2=10 is even
a[5]*2^(4)=0
0
10/2=5 is odd
a[6]*2^(5)=1 and 5-1=4
4/2=2 is even
a[7]*2^(6)=0
2/2=1 is odd
a[8]*2^(7)=1 and 1-1=0
1
1
1
0
1
Then the binary number is 10100011
To chick the result: 10100011= (1*2^0)+(1*2^1)+(1*2^5)+(1*2^7)=1+2+32+128= 163
Q44. What are the differences between?
a) Floppy disk
tape
b) Hard disk
c) CD ROM
d) Magnetic
Q45. What is the defragment in hard disk?
Q46. What is the function of VRAM in the memory?
PART – A
Q1.
State whether the following statements are True / False.
a) The mouse allows the user to output data from the computer. (True / False)
b) Random access memory (RAM) is the memory that the computer uses to store
data permanently. (True / False)
c) System software is any computer software which manages and controls
computer Hardware. (TRUE / FALSE)
d) The raw, unprocessed facts are called data. (True / False)
e) Operating systems are programs that coordinate computer resources, provide
an interface between user and the computer. (True / False)
f) Embed Operating system completely stored within ROM memory (True / False)
g) Program that reduces the size of the files for efficient storage is called file
compression program (True / False)
h) An operating system located on a single stand-alone hard disk is desktop OS –
(True / False)
i) Standard protocol for the internet is called TCP/IP. (True / False)
j) Bandwidth is used to Measure the width of a communication channel (True /
False)
k) Firewall protect the network from external threats (True / False)
l) Database structure in which data is organized into related tables is called
Relational database (True / False)
m) The key field is a common field by which tables in a database are related (True /
False)
n) Computer communication is the process of sharing data, programs and
information between two or more computers.(True / False)
Q2.
Choose the correct answer.
a) Software that allows your computer to interact with user, applications, and hardware is
called
(i).
Application software
(iii). word processor
(ii).
System software
(iv).
database software
b) In order for a computer to understand a program, it must be converted into machine
language by a _______________.
(i).
Operating system
(iii). Utility
(ii).
Device driver
(iv).
language translator
c) GUI stands for …..
(i).
Graphic Uninstall/Install
(ii).
Graphical User Interface
(ii).
General Utility Interface
d) To connect several computers together, one generally needs to be running a ________
operating system.
(i).
Network
(iii). internet
(ii).
Stand-alone
(iv).
embedded
e) A collection of related files is called a
(i). character
(ii). Database
(ii). Field
(iv). Record
f) When the data is processed at the same time that a transaction occurs, it is called,
(i).
Batch processing
(iii). Group processing
(ii).
Real-time processing
(iv).
Consignment processing
g) A database that is held in several locations is said to be
(i).
Distributed
(ii).
Fragmented
(ii).
Centralized
(iv).
Split
h) In the relational database model, a column represents a
(i). Character
(ii). Record
(ii). File
(iv). Field
i) The software used to create and modify a database is called a
(i). DBMS
(ii). DBMFA
(ii). MDBS
(iv). DMBS
j) The arrangement of the computers in a network is called ________________
(i).NOS (ii). Topology
(iii). Protocol
(iv). Node layout
k) The rules for exchanging data between computers are called __________
(i).
Interconnections
(ii).synchronous packages
(iii).
Protocol
(iv). Data transmission
l) A _______________ protects an organization’s network from outside attack.
(i). fortress
(ii). Proxy
(iii). Extranet
(iv). Firewall
m) The transmission medium that carries the message is referred to as the __________
(i). send and receive device (ii). Communication channel
(iii). Protocol
(iv). Gateways
n) A device connected to a network, that shares resources with other nodes is called a
_____________
(i). client
(ii). Server
(iii). Host
(iv). NOS
o) Primary storage is referred to as _________________ storage.
(i). Volatile
(ii). Direct
(iii). Sequential(iv). Nonvolatile
p) Windows XP, and Linux are examples of ________________
(i). Application software
(ii).
Operating system
(iii).
Browsers
(iv).
Shareware
q) Which is a part of the Central Processing Unit (CPU)
(i). Keyboard
(ii). Printer
(iii). Arithmetic Logic Unit (ALU)
r) DVD stands for ________________
(i). Digital Video Data
(iii). Direct Video Disc
(iv). Hard disk
(ii). Digital Versatile Disc
(iv). Direct Versatile Disc
s) A CD is an example of an
(i). input device
(ii). Pointer device
(iii). Storage device
(iv). Output device
Q3. Fill in the blanks for the following questions using the words given below.
Application Software, Spam, System Software, Bit, Topology, Port,
Relational Database, Records, Port, key field
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
Software that allows your computer to interact with the user, applications and
hardware is called _____________________.
The smallest unit in a digital system is a _________________.
The configuration of a network is called network _________.
File is a collection of related ____________
____________is a socket for external devices to connect to the system unit.
The _______________ is a common field by which tables in a database are related.
Database structure in which data is organized into related tables is called ____________.
PART-B
1. Define the following words:
Data
Database (DB)
Table
Record
Field
Modem
Program
2. What are the four types of Systems program?
3. What are the basic functions of every operating system?
4. Define and discuss the four basic network topologies.
5. Identify and describe the various physical and wireless communication channels.
6. What is the difference between batch processing and real-time processing?
7. What are the types of ports used in computer system?
8. What are the two types of signals?
9. Identify the three structures used in program flowchart to write structured programs.
10. What are the Advantages of computerized databases?
11. What is a database management system (DBMS)?
12. Explain the three types of Networks.
13.
What is the different between data and information?
14.
What is a network?
15.
What are two main types of Processing?
16.
What is batch processing?
17.
What are the benefits of Batch processing?
18.
What is interactive processing?
19.
What are the five parts of information system?
20.
What are the two major kinds of software?
21.
What is system software?
22.
What kinds of programs are included in system software?
23.
Describe the different types of computers.
24.
Draw the block diagram of the computer system
25.
What are the four operation of a computer system?
26.
What are types of memory? Give example for each type
27.
What are the four primary functions that an operating system performs?
28. Define the word system:
29. What are the basic functions of a system?
30. Convert the following decimal numbers to Binary numbers
31. Convert the following Binary numbers to Decimal numbers
32. Convert the following Hexadecimal numbers to Binary numbers
33. Convert the following Hexadecimal numbers to Decimal numbers
34. What is memory? Name and describe the three types of memory.
35. What is a port? What the standard types of ports?