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Winter 2014
PROGRAM: MCA (REVISED FALL 2012)
SEMESTER: FIRST
SUBJECT CODE & NAME: MCA1010- FUNDAMENTALS OF COMPUTER AND IT
CREDIT: 4
BK ID: B1645
MAX. MARKS: 60
Q.1:
Define CPU. What are the three sub units of CPU? Explain each.
ANS:
The central processing unit (CPU)
is the electronic brain of the computer. The CPU in a personal computer is
usually a single chip. It organizes and carries out instructions that come from
either the user or from the software. The processor is made up of many components,
but two of them are worth
Q.2:
Differentiate between integrated Circuits and microprocessors.
ANS:
Integrated Circuits- Third
Generation (1965-1971)
The development of the integrated
circuit was the hallmark of the third generation of computers. Transistors were
miniaturized and placed on silicon chips, called semiconductors, which drastically
increased the speed and efficiency of computers.
A non-metallic chemical element
in the carbon family of elements. Silicon – atomic symbol "Si" – is
the
Q.3:
What is the significance of Processor mode? Explain three types of processor
modes.
ANS:
Processor mode is responsible for
managing and controlling the system memory and its use. Processor modes are
classified into three types as:
Q.4: Explain the features of a
mouse and a track ball
ANS:
1. Mouse:
This Input device is categorized
as a pointing device because it is used to point and select an option on the
monitor. It is small boxlike object that isconnected to the computer by a cable
and can be rolled around on
Q.5: What is data
communication? Explain different Data Transmission methods.
ANS:
Data communication is the
transfer of data or information between a source and a receiver, the source
transmits the data and the receiver receives it. The distance over which data
moves within a computer may vary from a few thousandths of an inch, as is the
case within a single IC chip, to as much as several
Q.6: What
is an IP address? Describe the classes of IP addresses.
ANS:
IP addresses are represented by a
32-bit unsigned binary value. It is usuallyexpressed in a dotted decimal
format. For example, 9.167.5.8 is a valid IP address. The numeric form is used
by IP software. The
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