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Winter
2015, Assignment
PROGRAM
– BCA SEMESTER - 2
SUBJECT
CODE & NAME - BCA2050/IMC2050 COMPUTER ORGANISATION
BK
ID - B1642 CREDIT – 4 MAXIMUM MARKS - 60
Q1. What is difference engine?
Briefly explain the structure of Babbage’s Difference Engine. 4+6 = 10
Answer: Difference Engine: The difference engine
was designed to calculate the entries of a table automatically and transfer
them via steel punches to an engineer’s plate from which the tables could be
printed. The only arithmetic operation performed by this machine was addition.
However using a mathematical technique
Q2. What is the difference between
fixed and floating point numbers? 5+5 = 10
Answer: Fixed and Floating Point Numbers
The
term ‘fixed point’ refers to the corresponding manner in which numbers are
represented, with a fixed number of digits after, and sometimes before, the
decimal point. With floating-point representation,
Q3. Briefly explain the instruction
characteristics. 10
Answer: Each
instruction must contain the information required by the CPU for execution. Elements
of a machine Instruction are:
·
Operation Code: Specifies
the operation to be performed. The operation is specified by a binary code
Q4. Briefly explain the read and
write cycle of an 8086 processor. 5+5 = 10
Answer: After
understanding of the instruction cycle of the processor, now let us learn about
the Read-Write cycles. Read Cycle is Data Transfer from Memory or Input/output
(I/O) to CPU. Write Cycle is Data Transfer from CPU to Memory or I/O.
Read
Cycle
Read
Cycle consists of
Q5. Briefly explain Interrupt
Driven I/O. 10
Answer: Interrupt Driven I/O
Using
Program-controlled I/O requires continuous involvement of the processor in the
I/O activities. It is desirable to avoid wasting processor execution time. An
alternative is for the CPU to issue an I/O command to a module and then go on
other work. The I/O module will then interrupt the CPU requesting service
Q6. Describe Multiprocessing.
Briefly explain its system. 5+5= 10
Answer: Multiprocessing
is concerned with the capability of a computer system to provide support to
more than one processor or the capability to accomplish more than one program
simultaneously. The term
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