CHAPTER 7 SYSTEM SOFTWARE BASICS INTRODUCING THE OS

CHAPTER 7 SYSTEM SOFTWARE BASICS

INTRODUCING THE OS WHAT DOES IT DO? • Set of instructions designed to work on specific types of computers • Windows on Dell • OSX on MAC • Controls all the computers functions • Provides user interface to interact with the computer and programs

OS TASK • Manages the CPU so that processing task are done properly • Manages computer memory • Manage files stored on the computer disk • Manage input and output devices • Loads application programs into memory

UPDATES • Minor • • • Fixes issues Bugs Security issues Addition of drives to work with newer hardware Free • Major • New Features • New Version • Can Cost

TYPES OF OS • Real-Time Systems • Used to control large equipment • Heavy machinery • Scientific instruments • Require very little user interaction

TYPES OF OS • Single User/Single Task Systems • System lets one user do a single task at one time • Handheld computer

TYPES OF OS • Single UserMultitasking Systems • Allows the computer to perform several jobs, either one after the other or at the same time • Write a document • Listen to music • Print the document • Windows and OSX

OPERATING SYSTEMS FOR MOBILE DEVICES • Cannot use the same OS as Desktops or Laptops • Most common OS’s • Google Android • Apple IOS • Going out • Microsoft Windows

USER INTERFACE • Start Programs • Manage Disk and Files • Shutdown

PARTS OF THE INTERFACE • Desktop • Based on visuals • GUI (Graphical User Interface) • Lets you point and click to interact with the desktop

PARTS OF THE INTERFACE • ICONS • Pictures on the screen or tiles • Represent resources on the computer • Program • Documents • Hardware Device • Websites • Double click to perform an action

PARTS OF THE INTERFACE • Options • Customize some features of the OS • Backgrounds • Placement of the icons • Change ICON • Keyboard functions • Mouse Fuctions

OPERATING SYSTEMS AND UTILITIES POPULAR OPERATING SYSTEMS • First OS was MS-DOS developed in early 80’s • 3 Now Dominate • Microsoft Windows • Apple OSX • UNIX LINUX

OPERATING SYSTEMS AND UTILITIES POPULAR OPERATING SYSTEMS • Apple OSX • Developed in 1984 • First computer maker to sell consumers a PC equipped with a GUI • Microsoft Windows • Not the first OS with a GUI • Most widely used • Originally based on MS-DOS • Windows 98 last based on MS-DOS

OPERATING SYSTEMS AND UTILITIES POPULAR OPERATING SYSTEMS • Unix and Linux • First OS ever written • Designed to work for business and scientific computers • Later versions developed to work on home PC • One version of Unix is called Linux • Has optional GUI • Fast • Open-source • Becoming a challenger for both OSX and Windows

SYSTEM UTILITIES FILE MANAGEMENT Utility software is a collection of program that help you maintain and repair your computer • Many are built into the computer • ZIP • Disk Mounting • Organizing Files • OS, Programs and data are all stored in files each with a name • Grouped together into folder or directories • Can be divided into sub folders

SYSTEM UTILITIES FILE MANAGEMENT Using Files with File Manager • Create new folders or sub folders • Move or copy items between folder or to other disk • Delete files and folders • Launch Applications

SYSTEM UTILITIES FILE MANAGEMENT Finding Files • Search for a file by its • Name • Type • Date • Even Specific Dates

SYSTEM UTILITIES OTHER JOBS • Help with routine maintenance and other jobs • Driver Utilities • Utility contains data needed by programs to operate input and output devices • PNP (Plug and Play) • Computer has driver already to run the device

SYSTEM UTILITIES PROGRAM UTILITIES • Before you can use a program it must be installed • Add Remove Program Utility • Repair Utility