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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EXAMPLE OF MULTI-USER OPERATING SYSTEM The common examples of multi-user operating system’ include VMS‚ UNIX‚ and mainframe operating systems which include MVS system. A single user multi-tasking operating system is an operating system is capable of allowing multiple software processors to run at the same time. EXAMPLE OF NETWORK OR DISTRIBUTED SYSTEM Short for Network operating system‚ NOS is the software that allows multiple computers to communicate‚ share files and hardware devices with one
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Operating System UNIT - 1 Roadmap • What is an Operating System? • • • • • • • • Operating System Objectives/Functions The Evolution of Operating Systems Major Achievements Structuring methods Design of API’s Interrupts Device Organization User/System state Transition What is an Operating System? • A program that acts as an intermediary between a user of a computer and the computer hardware. OR • A program that controls the execution of application programs. • Kernel – the one program
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Operating system ABCs An operating system‚ or OS‚ is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system‚ a computer would be useless. Operating system types As computers have progressed and developed so have the operating systems. Below is a basic list of the different operating systems and a few examples of operating systems that fall into each of the categories. Many computer operating systems will
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OPERATING SYSTEM - FILE SYSTEM http://www.tutorialspoint.com/operating_system/os_file_system.htm Copyright © tutorialspoint.com File A file is a named collection of related information that is recorded on secondary storage such as magnetic disks‚ magnetic tapes and optical disks.In general‚ a file is a sequence of bits‚ bytes‚ lines or records whose meaning is defined by the files creator and user. File Structure File structure is a structure‚ which is according to a required format
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instructions (the target language‚ often having a binary form known as object code). This translation process is called compilation. We compile the source program to create the compiled program. The compiled program can then be run (or executed) to do what was specified in the original source program. The source language is always a higher-level language in comparison to machine code‚ written using some mixture of English words and mathematical notation‚ assembly language being the lowest compilable
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Authors: Damatac‚ Mara Olivia S. Gabriel‚ Ma. Gessa M. Lagiwid‚ Julie May C. Runez‚ Alfonso Tyrell Joseph B. Keywords: Mobile Apps IDE(Intergrated Development Environment) Cloud Sensors Introduction Programming is the process of developing logic codes to solve a particular problem. Programmed software and/or application are supposed to make the task easier for the user. It is used for developing applications found in our computing machines. It is used in almost all the technologies
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1. What is the application Zenmap GUI typically used for? Describe a scenario in which you would use this type of application. Zenmap is an application that is used to scan ports for networks. A scenario where it can be used is to scan the ports of a network to know exactly which ports are opened or closed thus allowing a network administrator to reduce the vulnerability of its network. 2. Which application is used for Step 2 in the hacking process to perform a vulnerability assessment scan
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CS 3530 Operating Systems L02 OS Intro Part 1 Dr. Ken Hoganson Chapter 1 Basic Concepts of Operating Systems Computer Systems A computer system consists of two basic types of components: • Hardware components‚ which are the electronic devices and electromechanical devices‚ such as the processors‚ memory modules‚ disk units‚ keyboard‚ screen‚ and other devices. • Software components‚ such as the application programs‚ operating system‚ utilities‚ and other programs. 3 Computer Architecture
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1. Briefly‚ what is an operating system? An operating system serves as a hardware/software interface‚ acts as a repository for common‚ shared routines and defines a platform for constructing and executing application software. 2. An operating system presents an application programmer with a relatively "friendly" hardware/software interface. What does this mean? Why is it important? The user interface‚ sometimes called the shell‚ provides a mechanism for the user and application programs to communicate
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