Week # 4 – Exercises / Solutions Exercise #1: Consider the following class definition: public class Complex { private double re; private double im; private static int instanceCount = 0; public Complex(double real, double imag) re = real; im = imag; } } Identify the Local Variables in the Complex constructor? Identify the […]
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1 Week # 2 – Additional Exercises [Solutions] Exercise #1: Given the MIPS Instruction set, convert the following MIPS assembly code into Java-like code. Note that “bgt” instruction is for “branch greater than” and is used to jump to a label, if a register value is more than the provided constant. You are expected to
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PowerPoint Presentation Slide 1 Operating System Structures & User Interface Slide 2 Lecture Objective / Overview In this lecture, we shall see: ◆ Operating System Services ◆ System Calls / OS Relationship ◆ OS Design and Implementation ◆ Operating System Structure ◆ User Classes & Interfaces References: Chapter # 2: Operating System Concepts (9th edition)
PowerPoint Presentation Computer Systems Application Layer Dr. Mian M. Hamayun m.m. .uk Based on material and slides from Computer Networking: A Top Down Approach, 7th Edition – Chapter 2 , Pearson/ Slide #2 of 57 Lecture Objective The objective of this lecture is to understand the conceptual and implementation aspects of network application protocols Slide
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PowerPoint Presentation Computer Systems Week 1 – Numbers Slide #2 of 46 Lecture Objectives To introduce the fundamentals of number representations, their conversion and how overflow can create problems in computer programs. Slide #3 of 46 Numbers – Lecture Outline Why do we use binary? Representing Text Decimal, Binary, Octal and Hexadecimal Notations How to
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12/19/21, 3:46 PM Exercises-2: Computer Systems https://canvas.bham.ac.uk/courses/56091/pages/exercises-2?module_item_id=2290727 1/2 Exercises-2 Here are some exercises for you to work through. They should help you to get a clearer idea (or confirm your understanding of the ‘Big O’ notation. Remember: These are NOT fragments of Java code – They describe the algorithm and a lot of details have
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PowerPoint Presentation Computer Systems Concurrency & Threads Slide #2 of 35 A view of an operating System Slide #3 of 35 What does this imply? Multiple ‘users’ Working independently The operating system: Protects memory from interference from other processes Interleaves execution of each process to: Maximise resource utilisation Responsiveness of each process Preserves the states
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PowerPoint Presentation Slide #27 of 46 No of Bits Min (Binary) Max (Binary) Max (Decimal) 1 0 1 1 2 00 11 3 3 000 111 7 4 0000 1111 15 8 00000000 11111111 255 n 0…0 (n bits) 1…1 (n bits) 2n – 1 Bits and Numbers (Unsigned) Slide #28 of 46 Binary Value
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PowerPoint Presentation Introduction to Computer Systems More on Numbers: Representing Real Numbers Slide #2 of 49 Lecture Objectives To introduce how real numbers are represented in computer systems. To explain some of the limitations of floating point representations Slide #3 of 49 Lecture Outline More on Numbers: Binary Arithmetic using 2’s Complement
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Computer Systems Topic – Subroutines and Stacks Dr. Mian M. Hamayun M.M. .ac.uk Credits to: & Slide #2 of 43 Lecture Objectives To introduce the fundamentals concepts of subroutines and how they are implemented using stacks. Slide #3 of 43 Lecture Outline How a Subroutine Works? Call / Return Instructions Introduction to Stacks
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