10/21/2015 1 System Software © 2013 The McGraw Hill Companies, Inc All rights reserved Computing Essentials 2013 System Software © 2013 The McGraw Hill Companies, Inc All rights reserved Computing Ess[.]
10/21/2015 System Software System Software Describe the differences between system software and application software Discuss the four types of system software Discuss the basic functions, features, and categories of operating systems Describe Windows, Mac OS, UNIX, Linux, and virtualization 5-2 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved System Software Computers are ubiquitous in our lives and we expect Describe the purpose of utilities and utility System Software them to “be there when we need them” suites Discuss mobile operating systems including Symbian, Blackberry OS, iOS, Android, Windows Phone 7, and WebOS Identify the five most essential utilities Discuss Windows utility programs Describe device drivers, including Windows’ Add a Device Wizard and Update We give little thought to the processes and programs running behind the scenes to keep them functioning effectively Such programs (i.e operating systems, utility programs, and device drivers) are the system software you learn about here 5-3 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-4 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 10/21/2015 System Software System Software A collection of programs that handle technical Handles the technical details tasks Includes the operating system, utilities, device drivers, and language translators Manage resources Provide user interface Run applications Examples: Windows Mac OS X Also called the software environment or platform 5-5 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-6 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved System Software Manages computer resources System Software Booting Features in common with application software Coordinate memory, processing, storage, printers and monitors Monitor system performance Schedule tasks Provide security Start-up the computer Provides user interface Graphical user interface (GUI) Runs applications Multitasking Foreground and background applications 5-7 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved Icons Pointer Windows Menus Tabs Dialog boxes Help 5-8 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 10/21/2015 System Software Three basic categories System Software The OS is often called the software Embedded operating systems (handheld) environment or platform Operating systems commonly used by individuals Smartphones Cable TV tuner boxes Video game systems Network operating systems (linked computers) Windows Server Unix OS stored on network server which coordinates all communication between the other computers Windows – most widely used Mac OS – powerful and easy to use UNIX – network; originally designed for Web LINUX – non proprietary; free from the Web Stand-alone operating systems (desktop) Also called client operating system 5-9 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-10 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved System Software The most popular microcomputer operating System Software Mac OS X runs on Apple computers Popular with graphic designers and desktop system Over 90 percent of the market publishers Features include Windows provides several improvements over Windows Vista Spotlight Dashboard Widgets Boot Camp Return 5-11 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-12 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 10/21/2015 System Software Mac OS v 10.7 - also known as Lion Photo-quality icons and easy-to-use menus System Software UNIX operating system Servers on the Web Mainframe computers Microcomputers Launchpad Displays and provides access to all apps installed Mission Control Displays all running programs at one time Gestures Allow you to use your fingers to run programs and to control content on the screen Return Return 5-13 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-14 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved System Software Ability to support multiple operating systems on a single physical LINUX - version of UNIX System Software machine Alternative to windows Open source Not proprietary Google Chrome OS based on Linux Virtualization software Physical machine can be logically separated into separate and independent virtual computers called virtual machines Host operating system Guest operating system Return 5-15 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-16 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 10/21/2015 System Software Mobile OS Specialized programs to make computing easier Most essential utilities Embedded operating system in every smartphone Some of the best known System Software Symbian BlackBerry OS or RIM OS iOS Android Windows Phone WebOS Troubleshooting or diagnostic programs Antivirus programs Uninstall programs Backup programs File compression programs 5-17 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-18 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved System Software Backup and Restore Disk Cleanup Disk Defragmenter System Software Utility program included with many Windows versions Makes a copy of all files or selected files that have been saved on a disk Helps prevent against loss of data in the event of a disk failure Return 5-19 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-20 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 10/21/2015 System Software System Software Identifies and eliminates Identifies and eliminates unnecessary nonessential files Frees up valuable space and improves system performance fragments Rearranges files and unused disk space to optimize operations Speeds up file access Return Return 5-21 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-22 Computing Essentials 2013 System Software Combine several programs into one package Less expensive Popular suites System Software Allow communication between a device and the computer Loaded into memory each time a computer is started When a new device is added, new device drivers must be installed Windows already has many drivers within the system software Norton 360 McAfee Office V Communications SystemSuite 5-23 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-24 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 10/21/2015 System Software System Software Security Center Computer support specialist provide technical Continually monitors your computer VirusScan Controls the frequency of searches for viruses Quarantines or deletes infected files PersonalFirewall Monitors inbound and outbound traffic SiteAdvisor Protects privacy online support to customers and other users Resolve common networking problems and use troubleshooting programs to diagnose problems Employers look for a bachelors degree, good analytical and communication skills Computer support specialist can expect to earn $32K - $53K annually 5-25 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-26 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved System Software IBM’s Automatic Computing Initiative (ACI) System Software Describe system software Discuss each of the four types of system programs Handles time-consuming maintenance Self-regulating and virtually invisible Define operating systems Describe the basic Self-maintaining servers features and the three categories of operating systems Self-repairing Self-updating Self-protecting What are desktop operating systems? Compare Windows, Mac OS, Linux and Chrome OS Discuss virtualization 5-27 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 5-28 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved 10/21/2015 System Software What are mobile operating systems? Describe six leading mobile operating systems Discuss utilities What are the five most essential utilities? What is a utility suite? Explain the role of device drivers Discuss the Add a Device Wizard and Windows Update 5-29 Computing Essentials 2013 © 2013 The McGraw-Hill Companies, Inc All rights reserved