Course Code : FREE IGNOU MCS-012 solved assignment 2018-19 Course Title : Computer Organisation and Assembly Language Programming Assignment Number : BCA(2)/012/Assignment/2018-19 Maximum Marks : 100
Weightage : 25%

Last Dates for Submission : 15th October, 2018 (For July, 2018 Session)
15st April, 2019 (For January, 2019 Session)

FREE IGNOU MCS-012 solved assignment 2018-19

Click here to get free solved assignment 2018-19

There are four questions in this assignment, which carries 80 marks. Rest 20
marks are for viva voce. You may use illustrations and diagrams to enhance the
explanations. Please go through the guidelines regarding assignments given in
the Programme Guide for the format of presentation. Answer to each part of the
question should be confined to about 300 words. Make suitable assumption, if
any.
Question 1 (Covers Block 1)
(a) What are fixed point numbers in a computer system? Why are negative fixed point
numbers represented in complement form? Give examples of fixed point numbers
(positive as well as negative) assuming the size of the notation to be 8 bits
(including sign bit).
Perform the following arithmetic operations using signed 2’s complement 8 bit
representation. (Please note that the numbers given below are in decimal notation)
i) Add –30 and –98
ii) Subtract –79 from 45
Please indicate overflow if it is occurs. Explain how have you identified the
overflow? (2 Marks)

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