MCA CS-01 PROJECT Computer Fundamentals

MCA CS-01 Computer Fundamentals

Course Code : CS-01
Course Title : Computer Fundamentals
Assignment Number : MCA(2)-01/Project/04
Last Date of Submission : 30th October, 2004
Maximum Marks : 15

This is a project assignment. There are two questions in this assignment. Attempt both the questions. Each question carries equal weightage.

Question 1:

(a) Design a 2-bit binary down counter, which counts on the occurrence of every alternate clock pulse. The states of the counter are: 11, 10, 01, 00, 11, …..

(b) Design and draw the following combinational circuits:
(i) Design a 4 × 16 decoder using 2 × 4 decoders.
(ii) Converting three digit binary code to equivalent Grey code as:

Binary Code

Gray Code

000

000

001

001

010

011

011

010

100

110

101

111

110

101

111

100

Question 2:

(a) Write a subroutine of 8086 assembly language that can be used for converting a string of numbers (maximum length 4 ASCII digits) to equivalent binary. Test this subroutine through an assembly program.

(b) Write a program in 8086 assembly language that accepts two Strings from the keyboard input; store them in two different arrays, finds the length of the two strings, and if lengths are same then compares the two strings.

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