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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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