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End
Semester Examination |
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Title of the subject: Fundamentals of Computer SystemsBCA/B.Sc(IT) Subject
code: |
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Duration: 3.00hrs |
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Max Marks: 100 |
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Note: All questions are
compulsory. Draw Figures wherever necessary. Write legibly on both sides of
answer book. |
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Section A[1 Marks Each] |
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1
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Where as a computer mouse moves
over the table surface, the trackball is a. Stationary b. Difficult to move c. Dragged d. Moved in small stems Ans: a. Stationary |
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2
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Which one of the following input device is
user-programmable? a. Dumb terminal b.
Smart terminal c. VDT d.
intelligent terminal Ans: d. intelligent terminal |
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3
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How
many options does a BINARY choice offer a.
One b. Two
c. it depends on the amount of memory on the computer d.
It depends on the speed of the computer’s processor Ans: b. Two |
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4
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CD-ROM a. Is a semiconductor memory b. Memory register c.
Magnetic memory d. None of the above Ans: d. None of the above |
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5
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Which of the following is not a primary storage
device? a. Magnetic tape b.
Magnetic disk c.
Optical disk d. None of the above Ans: d. None of the above |
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6
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1. With which of the following
all formulas in excel starts? a. / b. * c. $ d. = Ans: d |
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7
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A floppy disk contains a. Circular tracks only b. Sectors only c. Both
circular tracks and sectors d.
All of the above Ans: c. Both circular tracks and sectors |
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8
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Which of the
following registers is loaded with the contents of the memory location
pointed by the PC? a. Memory
address register b.
Memory data register c.
Instruction registers d. Program
counter Ans: c.
Instruction registers |
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9
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The binary system, 1+1 = _______ a.
2 b. 0
c. 1 d.
none of these Ans: c |
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10.
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The 2’s complement of 10002 is a. 0111 b. 0101
c. 1000 d. 0001 Ans: c |
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Section B[2 Marks Each] |
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1
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What are the difference between
hardware ,Software and Firmware? Ans:
Hardware:-are
the physical tangible components of a computer system. Software are the computer
program that govern the operation of computers. Firmware
:are
the prewritten programs permanently stored in read only memeory. |
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2
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Why analytical Engine often
called the pioneer Computer? Ans:The analytical Engines was
that first deign to introduce the basic architecture of modern computer. i.e.
CPU,storage Area, memory and input output devices. Thus it is called the pioneer computer. |
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3
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Give two major innovation in
first generation computer . Ans: (1) Computer programs Stored
in the computer memory (2) Vacuume tubes for internal operation. |
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4
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Give two major advances of third
generation Computers? Ans: (1)Integrated Circuitary (2)
Faster input –output devices. |
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5
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St ate the basic unit of computer
.Name the subunits that make up the CPU ,and give the function of each of the
units. Ans:1. Input Unit ,2.CPU,3.Output
Unit ,4.Memory |
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Section C[6 Marks Each] |
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1. |
Explain System
Bus . Ans: A system bus is a
single computer bus that connects the major components of a
computer system. The technique was developed to reduce costs and
improve modularity. |
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2. |
What are Secondary Storage
devices? Draw the following diagram for classification of commonly used
Secondary storage Device? Ans:
Alternatively referred to as external
memory and auxiliary storage, secondary storage is a storage medium that holds
information until it is deleted or overwritten regardless if the computer has
power. For example, a floppy disk drive and hard drive are both good examples of secondary
storage devices. As can be seen by the picture below there are three
different storage on a computer, although primary storage is accessed much
faster than secondary storage because of the price and size limitations
secondary storage is used with today's computers to store all your programs
and your personal data. Finally,
although off-line storage could be considered secondary storage, we've
separated these into their own category because this media can be removed
from the computer and stored elsewhere. Storage Device is a device for
recording (storing) information (data). Recording can be done using
virtually any form of energy.Storage device is a hardware device capable of
storing information. There are two storage
devices used in computers;
a primary storage device such as computer RAM and a secondary storage device such
as a computer hard disk drive. Primary Storage: -
Primary storage is a storage location that holdsmemory for short periods of times while the
computer is on. For example, computer RAM (random-access memory) and cache
are both examples of a primary storage device. This type of storage is the
fastest type of memory in your computer and is used to store data while it’s
being used. For example, when you open a program data is moved from the
secondary storage into the primary storage. It is also known as internal
memory and main memory. Secondary Storage: - Secondary storage is a
storage medium that holds information until it is deleted or overwritten
regardless if the computer has power. For example, a floppy disk drive and hard disk drive are both
good examples of secondary storage devices. As can be seen by the below
picture there are three different types of storage on a computer, although
primary storage is accessed much faster than secondary storage because of the
price and size limitations secondary storage is used with today’s computers
to store all your programs and your personal data. It is also known as
external memory and auxiliary storage. |
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3. |
Differentiate between Program
Control Register /Program Counter and Memory address Register. Ans:- The
difference is that the program counter points to the next instruction to be
fetched / executed , whereas the memory address register points to a memory
location where the program being run will fetch some data (not an
instruction). |
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4. |
Write
three difference between interpreter and compilers Ans:
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5. |
What
is the use of following short cut keys a.
Ctrl
+ x b. Alt +f c. Ctrl+m
d. Ctrl+v e.
Ctrl+A Ans: a.
Ctrl
+X: cut a text b.
Ctrl
+ m: insert new new slide c.
Alt+f:
open file menu d.
Ctrl+v:
Paste copied text e.
Ctrl+A:
Select all page |
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Section D[10 Marks Each] |
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1. |
A .What is a Cache memory? How is
it different from a primary memory? Explain how a Cache memory helps in
improving the overall processing speed of a Computer System. Ans:
Cache memory, also called CPU memory, is random access memory (RAM) that
a computer microprocessor can access more quickly than it can
access regular RAM. As the microprocessor processes data,
it looks first in the cache memory
and if it finds the data there (from a previous reading of data), it does not
have to do the more time-consuming reading of data from larger memory. |
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2. |
Explain
Filter option in MS-EXCEL. Ans: For medium-to-large
quantities of data, using Microsoft Excel’s AutoFilter is a quick and simple
way to filter through that information and find what you need. Starting with
inputting data, you'll then need to select and sort it, customizing the
autofilter however you like. This 5-step process can be mastered in minutes,
ultimately increasing your Excel efficacy and speed. 1.Input all of your data, or open
the spreadsheet that contains all of your data.It is best that your data have column heading such as
categories to specify the data below it. If you don’t already have these,
input them before you filter. 2. Select all Data you wish to filter.: Because the AutoFilter option is an automatic process that does
not receive any specific inputs on how to filter, it is recommended that you
choose ‘’all’’ of the data you have. This will avoid the possibility that you
lose data associations across rows and/or columns. 3. Click “Data” ,Then Select “Filter”. 4. You will immediately notice
that the categories have drop-down buttons.Using these buttons, you can set
your filter options. 5. You will immediately notice
that the categories have drop-down buttons.Using these buttons, you can set
your filter options. |
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3. |
Write a short note on Number
System. Ans: When we type some letters or words, the
computer translates them in numbers as computers can understand only numbers.
A computer can understand positional number system where there are only a few
symbols called digits and these symbols represent different values depending
on the position they occupy in the number. A value of each digit in a number can be determined using ·
The digit ·
The position of the digit in the number ·
The base of the number system (where base is defined as the
total number of digits available in the number system). Decimal Number System
The number system that we use in our day-to-day life is the
decimal number system. Decimal number system has base 10 as it uses 10 digits
from 0 to 9. In decimal number system, the successive positions to the left
of the decimal point represent units, tens, hundreds, thousands and so on. |
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4. |
a. What is MS Excel? Write four
features of Excel with its limit. b. What are presentation tools?
Give two examples. Write about three types of movements provides by power
point. Ans: a.
MS
Excel: Microsoft Excel is a spreadsheet application developed by Microsoft
for Microsoft Windows and Mac OS. Features:
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The
three types of movements provides by power point are
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5. |
What is a Printer ? Differentiate between
impact and non -Impact Printers. Give
their relative advantages and disadvantages. Name few printers of both types. Ans:
A printer is an external hardware device responsible for taking computer data
and generating a hard copy of that data. Printers are one of the most
used peripherals on computers and are commonly used to print text, images,
and photos. The picture is the Lexmark Z605 Inkjet printer and an example of a computer printer. |
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