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PROGRAM-
BCA(REVISED FALL 2012)
SEMESTER-
I
SUBJECT
CODE & NAME
BCA1040
- DIGITAL LOGIC
Qus:1
Convert the following:
i)
(0100 1111 1011 0010)2 to octal number and decimal number
ii)
(6704)8 to decimal and binary number
Answer:
i)
(0100
1111 1011 0010)2 to octal number and decimal number:
Conversion of i) (0100 1111 1011 0010)2 to octal
number
First of all we have to separate
given number as a group of three digits in
Qus:2
Construct the following gates using NOR gates.
a)XOR
b)
NAND
c)
XNOR
Answer:
a XOR:
Q3.
Simplify the following truth table using k-map and find the reduced function f(x,y,z).
x
y z f(x,y,z)
0
0 0 1
0
0 1 1
0
1 0 1
0
1 1 1
1
0 0 0
1
0 1 0
1
1 0 1
1
1 1 1
Answer.
If we have a truth table for a
function,we can write a sum of minterms expression just by picking out the rows
of the table where the function output is 1.
Q4.
Draw the truth table of full adder and implement it using the logic gates.
Answer.
This type of adder is a
little more difficult to implement than a half-adder. The main difference
between a half-adder and a full-adder is that the full-adder has three inputs
and two outputs. The first two inputs are A and B and the third input is an
input carry designated as CIN. When a full adder logic is designed we will be
able to string eight of them together to create a byte-wide adder and cascade
the carry bit from one adder to the next.
Qus:5 What are sequential circuits? Explain
differences between sequential circuits and combinational circuits.
Answer:
Sequential circuits:
Both
combinational circuits such as universal gates and memory such as latches and flip
flops are used to construct a digital system. In many sequential circuits (like
counter and shift registers), MSI, and LSI packages we can see the
interconnection of both logic gates and memory elements. While designing the
digital systems, the additional variable and timing information of the memory
should be taken care. Sequential logic operations should be performed, the data
Qus:6 What are shift registers? Explain serial in
serial out shift register.
Answer:
Shift registers:
Shift
Register is a set of binary storage elements, typically flip-flops combined and
linked together to facilitate the movement of the data bits stored, from one to
another and in and out of it, whenever desired by activating control
signals.Inputs to the shift registers can be serial or parallel. Similarly Get fully solved assignment, plz drop a mail with your sub code
computeroperator4@gmail.com
Charges for mba rs 125/subject and rs 700/semester only.
For other rs 125/subject only
if urgent then call us
on 08791490301, 08273413412
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