# Arithmetic Logic Unit

Arithmetic Logic Unit

Course Code : BCS-011 SOLVED ASSIGNMENT 2018-19
Course Title : Computer Basics and PC Software
Assignment Number : BCA (R1)-011/Assignment/2018-19
Maximum Marks : 100
Last Date of Submission : 15th October, 2018 (For July, 2018 Session)
15st April, 2019 (For January, 2019 Session)
This assignment has three questions of 80 marks. Answer all the questions. Rest
20 marks are for viva voce. You may use illustrations and diagrams to enhance
explanations. Please go through the guidelines regarding assignments given in
the Programme Guide for the format of presentation. Please give precise
answers. The word limit for each part is 200 words.
Question 1: (Covers Block 1) (7×4 Marks each=28 Marks)
a) What is the role of following components of a Computer System:
(i) Control Unit
(ii) Arithmetic Logic Unit
(iii)Ports and Connectors
(iv) Motherboard
b) What is an instruction in the context of a Microprocessor? How does a
microprocessor instruction specify data and operations? Explain with the
help of an example.
c) A computer system was designed to have a good latest processor and I/O
devices, however the designer of the computer did not put any RAM in it.
The computer does have a hard disk of 1 tera-byte. Will this computer be
able to execute programs? Explain giving justification in support of your
d) Convert the following numbers as directed
(i) Decimal 198.25 into binary and hexadecimal
(ii) Decimal 444566 into binary and hexadecimal
(iii) String “Maximum Limit 500%” to ASCII and Unicode string
(iv) Hexadecimal ABCDEF to decimal and binary
e) How are the tracks on magnetic disk different than that of Optical disks?
Consider one optical and one magnetic disks have identical number of
tracks and equal size sectors, will these two disks have same size? Justify