+1-415-315-9853

info@mywordsolution.com

## Engineering

 Civil Engineering Chemical Engineering Electrical & Electronics Mechanical Engineering Computer Engineering Engineering Mathematics MATLAB Other Engineering Digital Electronics Biochemical & Biotechnology

Answer all the problems

1)

(a) Convert the following numbers as asked:

(i) Decimal 999 to Hexadecimal

(ii) Octal 555 to Hexadecimal

(iii) Hexadecimal AAAA to Decimal

(iv) Hexadecimal AAAA to Octal

(b) Suppose that computer represents negative integers in signed 2’s complement notation having the size of 8 bits. You might also suppose that all registers used for integer arithmetic are of 8 bits. Carry out the following operations using this computer (numbers indicated in the operations are decimal numbers). Indicate overflow condition, if any.

(i) Add -38 and -90

(ii) Subtract 90 from 38

(iii) Add 63 and 65

(iv) Subtract -90 from -65

(c) A four bit data 0001 is to be sent across communication channel. What must be the parity bits for SEC code, if this data is to be sent correctly across to destination? Indicate where these SEC code bits would be placed in the data + code bit combination which is to be sent. Suppose that data bits which were received were 1 S 0 S 0 S 1 (SEC bits remained unchanged in between wherever they were, that is the value of S might the related SEC bit or Null ). Correct this code using SEC bits generated at the receiver and the SEC bits received from the sources. Demonstrate all the steps of this process.

(d) A logical function calculator compares two numbers for the function A >= B. The comparator output 1 of the comparison is TRUE else FALSE. In case if both A and B are equal, the comparator outputs a second bit as 1 (0 otherwise). Partial truth table for comparator is given in Figure :

Number A       Number B           Output
Bit 1   Bit 0     Bit 1    Bit 0    Same    Zero
0         0          0          0        1          1
0         0          0          1        0          0
...        ...        ...          ...       …         …
0         1         0           0        1         0
0         1         0           1        1         1
...        ...        ...         ...        …         …
1         0         1           1        0          0
1         1         1           1        1          1

Complete the truth table and design and draw the combinational circuit using AND-OR-NOT gates for the description given.

(e) Why do you require a flip-flop? Describe characteristics table of J K flip flop. How is it different than that of S R flip flop? Describe synchronous counter in the context of change of states of the flip flop.

(f) What is associative memory? Describe with the help of the diagram. What is a Cache memory? What are its different organisations? Describe Associative cache memory organization with the help of a diagram showing mapping from main memory to cache memory. You should show proper addresses for both the memories in the diagram. Though, for simplicity, you might take size of the main memory as 32 byte and cache as 4 byte.

(g) You have been asked to design the configuration of a database server (please do not give the names of manufacturer), specifically the RAID configuration for your server. Which of type of RAID machine will you select? Give justification in support of your answer. Also describe the process of interrupt handling when more than one interrupts can occur simultaneously.

(h) Describe the functions and purposes of Direct Memory Access (DMA) and Input/output processor in Computer. Determine how in Pentium processor I/O devices are connected to the system bus.

2)

(a) Is it possible to have Instruction set with no operands at all? Justify your answer. Suppose that the machine is to be designed for performing simple arithmetic operations (including unary and binary), what must be optimum number of operand in an instruction set for such machine? Give justification in support of your answer. How does the number of operand addresses in the Instruction Set affect the size of the program on computer?

(b) A machine is to be designed such that it stores arbitrary length arrays in memory. This machine also supports subroutine calls. Suggest four best addressing modes for the machine. Give reasons for your choice.

(c) Consider instruction ISNZ Op where Op is a register operand which is the address of the instruction of the executing program. Instruction checks if the value of the preceding instruction execution is NOT ZERO (the result might be in the AC register), if so then it branches to address specified by the Op. prepare sequence of micro-operations which would be needed to execute this instruction. You might use various micro-operation cycles and the essential registers.

(d) Suppose that 8-bit Register R has the data 01101110. Perform the following operations on the register R:

(i) Selective Set the lower 4 bits to 1100

(ii) Extract the lower 4 bits

(iii) Clear the register using a logical operation

(iv) Insert a value 1111 in the lower 4 bits of the register.

(e) Represent the following floating point numbers using IEEE 754 floating point single precision format.

i. 32.0125

ii. -0.125

(f) Describe the working of the control unit of a computer with the help of a Block diagram. Describe significance of micro-instruction in computer. Describe differences between horizontal and vertical microinstructions.

3)

(a) prepare the advantages of having segments in 8086 micro-processor? Describe the use of stack segment register and process of computations of physical address of the top of the stack in 8086 microprocessor.

(b) Describe the REPE, CMPS, AAA, and  XLAT instructions of 8086 processor with the help of one ex each.

(c) Describe any one direct, one register indirect, one based indirect and one indexed indirect addressing modes of 8086 microprocessor with the help of the ex of each.

(d) Describe process of Input/output using Interrupt 21h in 8086 microprocessor with the help of exs.

(e) prepare program in 8086 assembly language which finds total of an array of maximum 10 integer elements. You might suppose that array is stored in memory and last value in the array is -2000. The find outd result is stored in location named sum.

(f) prepare program in 8086 assembly language which passes two input parameters to the subroutine through stack. Subroutine return value 1 if the value of first parameter is greater than the second, otherwise returns 0. Make appropriate assumptions, if any.

Computer Engineering, Engineering

• Category:- Computer Engineering
• Reference No.:- M92317

Have any Question?

## Related Questions in Computer Engineering

### Implement the linear quotient hashing method described in

Implement the linear quotient hashing method described in note 6 and compare its performance with the algorithm above for a load factor of 80%. Use a random number generator to provide the key set. Make tests for sets of ...

### For the module 5 capstone assignment you provided a roadmap

For the Module 5 capstone assignment, you provided a roadmap to help your organization "know its customer" better. Now, management needs your help in designing an operational BI dashboard that combines information from i ...

### Consider a game tree in which there are six marbles and

Consider a game tree in which there are six marbles, and players 1 and 2 take turns picking from one to three marbles. The player who takes the last marble loses the game. a. Draw the complete game tree for this game. b. ...

### 1 what is the most common form of violation of intellectual

1. What is the most common form of violation of intellectual property? How does an organization protect against it? What agencies fight it? 2. What are the various types of force majeure? Which type might be of greatest ...

### Construct a 3-bit counter using three d flip-flops and a

Construct a 3-bit counter using three D flip-flops and a selection of gates. The inputs should consist of a signal that resets the counter to 0, called reset, and a signal to increment the counter, called inc. The output ...

### 1 look at the methods in the integer class which are static

1. Look at the methods in the Integer class. Which are static? Why? 2. Look at the methods in the String class (but ignore the ones that take a parameter of type char[]). Which are static? Why? 3. The in and out variable ...

### Using the internet search for commercial idps systems what

Using the Internet, search for commercial IDPS systems. What classification systems and descriptions are used, and how can these be used to compare the features and components of each IDPS? Create a comparison spreadshee ...

### 1 the ieee 80211 task group i tgi is developing new wlan

1. The IEEE 802.11 Task Group i (TGi) is developing new WLAN security protocols named TKIP and CCMP. CCMP is envisioned to supersede WEP and TKIP. Research and study these efforts and comment on the progress. 2. It has b ...

### 1 evaluate the four basic linked list operations for a

1. Evaluate the four basic linked list operations for a sorted doubly linked list and indicate the worst case time-complexities of each. 2. Evaluate the worst case time-complexity for the search operation on a doubly lin ...

### In problem how far upstream does the flow from the source

In Problem, how far upstream does the flow from the source reach? Problem :- For the case of a source at the origin with a uniform free stream plot the streamline ψ = 0.

• 4,153,160 Questions Asked
• 13,132 Experts
• 2,558,936 Questions Answered

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

### WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro