ICT 100: Introduction to Information and Communications Technology Unit 3: Operating Systems Objectives: Define the term software Differentiate between system software and application software Define the terms operating system and utility program Identify the types of operating systems Explain the boot process of a computer Describe the functions of an operating system Identify common utility programs Software‚ also called a program‚ consists of a series of related instructions
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EVOLUTION OF THE OPERATING SYSTEM Operating systems as they are known today trace their lineage to the first distinctions between hardware and software. The first digital computers of the 1940s had no concept of abstraction; their operators inputted machine code directly to the machines they were working on. As computers evolved in the 1950s and 1960s however‚ the distinction between hardware such as the CPU and memory (or Core as it was called then) and the software that was written on top of it
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Guide to UNIX Using Linux Fourth Edition Chapter 5 Solutions Answers to the Chapter 5 Review Questions 1. You have just finished a 25-page paper that you have written using Emacs. The file containing the paper is called /assignments/data_sources. After your instructor has briefly looked at the paper‚ she recommends that you change all instances of the reference “data is” to “data are” before you submit it. Which of the following commands can you use to locate these references in the
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ROS (Robot Operating System) is a framework for robot software development‚ providing operating system-like functionality on top of a heterogenous computer cluster. ROS was originally developed in 2007 under the name switchyard by the Stanford Artificial Intelligence Laboratory in support of the Stanford AI Robot (STAIR[1]) project. As of 2008‚ development continues primarily at Willow Garage‚ a robotics research institute/incubator‚ with more than twenty institutions collaborating in a federated
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Samuel Obasanya CSC 226-051 Fall 2013 October 24‚ 2013 Key Terms Lightweight process; this is the unit of dispatching also known as thread. Multithreading; this refers to the ability of an os to support multiple‚ concurrent paths of Execution within a single process. Kernel-level thread; this is a type of threading in which all of the work of thread management is done by the kernel. Thread; this is a single execution path‚ with an execution stack‚ processor stack‚ and scheduling information
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Components of an Operating System In order to perform the actions requested by the computer’s users‚ an operating system must be able to communicate with those users. The portion of an operating system that handles this communication is often called the user interface. Older user interfaces‚ called shells‚ communicated with users through textual messages using a keyboard and monitor screen. More modern systems perform this task by means of a graphical user interface (GUI) in which objects to be
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Mobile Operating Systems (Mobile OS) Introduction: A mobile operating system‚ also called a mobile OS‚ is an operating system that is specifically designed to run on mobile devices such as mobile phones‚ smartphones‚ PDAs‚ tablet computers and other handheld devices.Much like the Linux or Windows operating system controls your desktop or laptop computer‚ a mobile operating system is the software platform on top of which other programs can run on mobile devices. The operating system is responsible
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Operating Systems Assignment 1 Session: Summer 2013 Faculty of Information Technology UCP Lahore Pakistan Operating Systems Assignment: Introduction and Overview of Operating Systems 150 MARKS Write in your own words to answer the following‚ if you use material from any book website apart from your recommended book please provide so. All work will be assumed yours otherwise. Justify your answers where needed. Explain briefly and concisely 1. You are to procure Linux
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Assignment First Page Student ID number(s): | 30855399 | Student Name(s): | Jin Wang | Module Name: | Operations and Process Management | Module Tutor: | Professor Mike Pidd and Dr. Jerry Busby | Essay/Project Title | Operation Strategies of Low-Cost Airlines and the Fight Back of Established Airlines | Word Count: | 1‚823 | Assignment Due Date: | 17 December‚ 2012 | By submitting this coursework for assessment‚ I/We acknowledge the following: Academic Integrity
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Chapter 7 Exercise #3 – Given a disk pack with 10 platters yielding 18 recordable surfaces… A = Rotational speed = 10ms B = Transfer rate = 0.1ms/track C = Density per track = 19‚000 bytes D = Number of records to be store = 200‚000 records E = Size of each record = 160 bytes F = Block size = 10 logical records G = Number of tracks per surface = 500 a) Number of blocks per track: (C) / (E*F) 19‚000 / (160*10) 19‚000 / 1600 11.875 11 BLOCKS b) Waste per track: C – (E*F*11)
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