IST ASSIGNMENT QUESTIONS
SUBJECT: COMPUTER ARCHITECTURE LAST DATE FOR SUBMISSION:18/01/2018
Class: B.E 2/4 Sec-III Teacher: Daggubati Sirisha Date Given: 9/01/2018
UNIT-I
I -Short Answer
Questions.(CO-1, -Remember,Understand,Apply)
1) What
is Bus Transfer? Explain different mechanisms to construct buses.
2) What
is Register Transfer?Write the interpretation of micro operation. Draw its
block diagram and its timing
diagram.
3) Draw
Von Neumann architecture.
4) A
digital computer has a common bus system for 16 registers of 32 bits each. The bus is
constructed with multiplexers.
a)
How many selection inputs are there in each multiplexer./
b)
What size of multiplexers are needed?
c)
How many multiplexers are there in the bus?
5) Register
A holds the 8-bit binary 11011001.Determine the
B operand and the logic micro operation to be performed in order to change the values in A to
a)
01101101
b)
11111101
6) An
8-bit register contain the binary value 10011100.What is the register value
after an arithmetic shift right?Starting
from the initial no 10011100,determine the register value after an arithmetic
shift left,and state whether there is
an overflow.
7) Starting
from an initial value R=11011101,determine the sequence of binary values in R
after a logical shift
left,followed by a circular shift right,followed by a logical shift right and a
circular shift left.
8) What
is Data Type?
9) What
is r's complement? How do you implement complement system?
10) List
Out the different way of representing
Negative Numbers?
11) What
is an overflow during arithmetic operations?Explain how it can be detected.
12) Explain
how floating point Numbers are represented?
13) What
is Error Detection Code?Explain Parity bit generation?
14) Convert
the follwing binary numbers to decimal: 101110; 1110101; and 110110100
15) Convvert
the following numbers with the indicated bases to decimal: (12121)3;(4310)5
; (50)7 and (198)12.
16) Convert
the follwing decimal numbers to binary:1231;673;and 1998.
17)
Obtain nthe 9's complement of the following eight digit decimal numbers:
12349876;00980100;90009951;and
00000000.
18) Obtain
the 10's complement of the following 6 digit decimal numbers.
123900;090657;100000;000000.
19) Obtain
the 1's and 2's complement of the following 8 digit binary numbers.: 10101110;10000001;10000000;00000001;00000000.
II-Long Answer Questions:(CO-1,CO3-Remember,Understand)
1) Explain
the subtraction of Unsigned Numbers.
2)
Explain the mechanism of Arithmetic Subtraction.
3) Explain
BCD addition and subtraction with an example?
4) What
is gray code? Generate it along side decimal equivalent to 0-7?
5) Illustrate
Parity Generator and Checker and verify error detection with odd parity bit?
6) Convert
the following decimal numbers to the bases indicated.
a)
7562 to Octal
b)
1938 to hexadecimal
c)
175 to binary
7) Convert
the hexadecimal number F3A7C2 to binary and octal.
8) Perform
the subtraction with with the following unsigned decimal nos by taking the 10's
complement of subtrahend.
a)
5250-1321 b)1753-8640
c)
20-100 d) 1200-250
9) Perform
the subtraction with the following unsigned binary nos by taking the 2's
complement of the subtrahend.
a)
11010-10000 b) 11010-1101
c)
100-110000 d) 1010100-1010100
10) Perform
the arithmetic operations (+42) + (-13)
and (-42) - (-13) in binary using signed 2's complement representation for negative numbers.
11) Perform
the arithmetic operations (+70) + (+80) and (-70) + (-80) with binary nos in
signed 2's complement
representation.Use eight bit to accomodate each number together with its sign.
Show that overflow occurs in both in
cases,that the last two carries are unequal,and that there is a sign reversal.
12) Perform
the following arithmetic operations with the decimal nos using signed 10's
complement representation for the
negative nos.
a)
(-638) + (+785)
b)
(-638) - (+185)
13) Represent
decimal nos 8620 in (a) BCD; (b) excess-3 code; (c) 2421 code;(d) as a binary
number.
14) Represent
decimal 3984 in the 2421 code.Complement all bits of coded number and show that
the result i is the 9's complement
of 3984 in the 2421 code.
15) Show
the interconnection structure of different components of a computer.Explain their Functions.
