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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 mentioning at this point. These are
the arithmetic and logic unit and the control unit. The control unit
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
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 the table. A pointer on the
screen follows the movements of the mouse; rolling the mouse left moves the
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 mapping between the IP address and an
easier-to-read symbolic name, for example, myhost.ibm.com, is
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