UNIT:1 ASSIGNMENT QUESTIONS- COMPUTER ARCHITECTURE

                             I^ST 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.