NOTE: There are 11 Questions in all.
Question
1 is compulsory and carries 16 marks. Answer to Q. 1. must be written in the
space provided for it in the answer book supplied and nowhere else.
Answer
any THREE Questions each from Part I and Part II. Each of these questions
carries 14 marks.
Any
required data not explicitly given, may be suitably assumed and stated.
Q.1 Choose
the correct or best alternative in the following: (2x8)
a.
The
first large scale computer ever developed is
(A)
IBM701 (B) MARK II
(C) ENIAC (D EDIVAC
b.
A
group of wires running parallel to each other between two connected computer parts
and which transfers information is called
(A) Track (B) Bus
(C) Cable (D) Bundle
c. In a computer, 16 bits are used to specify the addresses for a RAM or an I/O device. The maximum number of addresses generated by this computer is
(A) 6 K (B) 16 K
(C) 32 K (D) 64 K
d. Execution of instructions by different and independent programs simultaneously by a computer is called
(A) Multiprogramming (B)
Multiprocessing
(C) Concurrent programming (D) Multitasking
e. ____________ printer is a non-impact printer
that can produce a very high quality, letter perfect printing.
(A)
Dot-matrix (B) Daisy wheel
(C) Electrostatic (D) Laser
f. A
backup file has an extension
(A) .COM (B) .BAK
(C) .BAS (D) .TXT
g. String
search in a word processor is restricted to
(A) Block (B) Page
(C) File (D) Paragraph
h. __________
command copies the selected text and graphics into the clipboard in windows.
(A) Ctrl C (B) Ctrl V
(C) Ctrl X (D) Ctrl A
Answer
any THREE Questions. Each question carries 14 marks.
Q.2 a. Give the full form of the abbreviations:
GIGO, ENIAC, VLSI. (3)
b. Compare the
five generations of computers on the basis of the software technologies used. (5)
c. Explain the main functions performed by the
system software of a computer system. (6)
Q.3 a. Differentiate between System Software and
Application Software with one example for each. (4)
b. What is a
bus? Define bus width. (2)
c. Differentiate
between static and dynamic RAM. (4)
d. Explain the
destructive and non-destructive operation with the help of an example. (4)
Q.4 a. Give
the characteristics of data scanning devices. (3)
b. Differentiate between an Optical Mouse and
Mechanical Mouse. (4)
c. What is a digitizer? Explain the working of a digitizer. (7)
Q.5 a. Explain
how an output is displayed using a CRT monitor with the help of a neat diagram. (10)
b. Explain the
printing mechanism of a laser printer. (4)
Q.6 a. Explain how data is organized on a magnetic tape. (7)
b. Explain the access mechanism in an optical disk. (4)
c. What is the storage capacity of an unformatted 5.25 inch optical disk having 330000 sectors each of 2352 bytes? (3)
Answer
any THREE Questions. Each question carries 14 marks.
Q.7 a. With the help of a block diagram, explain the
basic organization of a computer system. (8)
b. Give three
advantages of windows over DOS operating environment. (6)
Q.8 a. What
are registers? List out the commonly
found registers in the CPU and explain their functions. (10)
b. How is the
processing speed of a super computer measured?
Why is the speed measured in that unit? (4)
Q.9 a. What is spooling? Why are mutually exclusive I/O devices converted into non-mutually exclusive I/O devices? Explain how they are converted. (8)
b. Distinguish
between sequential access files and random access files. (4)
c. How many characters are allowed for a file
name in: MSDOS, Microsoft Windows. (2)
Q.10 a. Name three methods used for disk space allocation. Explain any one
of them. (6)
b. Give the DOS commands
to perform the following operations:
(i) Delete all the
files from the subdirectory WS/DEPT in the drive B whose file names have a BAK
extension. (2)
(ii)
Copy all the files beginning with m and whose filename has a TXT extension from
drive A to the \document directory on drive C. (2)
(iii) Prepare a disk in drive B so that it can be used to boot up the
computer. (2)
(iv) Make a new directory NEWDIR under directory OLDDIR. Copy all files from directory OLDDIR to
NEWDIR. (2)
b. What are the
two types of data that can be inserted in a cell of a worksheet? Give examples. (3)
c. What is justification? Explain briefly the ways a paragraph in a
MS-Word document can be justified. (5)
d. It is required to print the page number at
the bottom and a heading at the top-center of the page. Give the steps to achieve this. (3)