ITC544  Data Representation and Digital Logic Assignment 1  Information Technology
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Task
Total marks: 30
Answer the following Questions
Question 1

 a) Determine the value of base x if (211)x = (6A)16 [5 marks]
 b) Convert the followings: [3+3=6 marks]
 OxBAD into a decimal number
 58810 into a 3base number
 c) Given a (very) tiny computer that has a word size of 6 bits, what are the smallest negative numbers and the largest positive numbers that this computer can represent in each of the following representations? [3 +3 = 6 marks]
 One’s complement
 Two’s complement
Question 2.
 Consider the following logic diagram of a combinational circuit where A, B, and C are inputs and Q is the output. Three 2input AND gates and two 2input OR gates are used in the It is possible to reduce some of the logic gates without changing the functionality of the circuit. Such component reduction results in higher operating speed (less delay time from input signal transition to output signal transition), less power consumption, less cost, and greater reliability. Construct a logic diagram of a circuit which does have the same function output with only two logic gates (instead of five). Please show the steps. [8 marks]
 Using basic Boolean algebra identities for Boolean variables A, B and C, prove that ABC+
ABC’ + AB’C + A’BC = AB + AC + BC. Please show all steps and mention the identities used. [5 marks]
Rationale
This assessment task covers topic 2 and 3, and has been designed to ensure that you are engaging with the subject content on a regular basis. More specifically it seeks to assess your ability to:

 be able to apply an understanding of data representations and calculations to practical situations;
 be able to apply Boolean algebra and digital logic to design and interpret complex digital circuits;
Marking criteria
Presentation
 Please compose the answers in a document file (doc or docx format). Please do not submit in pdf formats. Please upload the document in the Turnitin within deadline.
 The first page (cover page) of the document file should have the following information clearly mentioned:
 Your full name
 Subject Code (ITC544)
 Assessment item number and name (Assignment 1: Data Representation and Digital Logic)
 Each page should have page numbers in “page x of y” format (including the cover page).
 You DO NOT need to provide any references for any of the questions.
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