Chapter 5 Presentation Meghan McCabe & Abby Lane Chapter 5 : Lane & McCabe

What Software Is Included In System Software? Two Basic Types Application software EX: Internet Explorer System software EX: Windows System software consists of two primary types of programs: Operating system Utility Programs Chapter 5 : Lane & McCabe

What Does An Operating System Do? Operating System Every computer has one-computer cannot operate without it Chapter 5 : Lane & McCabe

Operating System Categories Figure 5.1 Operating System Categories Category of Operating SystemExample of Operating System Software Examples of Devices Using the Operating System Real-Time Operating System (RTOS) Nucleus RTOS Mars Reconnaissance Orbiter Scientific Instruments Automation & control machinery, robotic devices Video games Single-User, Single-task Operating System Windows Mobile Personal Digital Assistants (PDAs) Embedded computers in cell phones, cameras, appliances, and toys Single-User, Multitask, Operating System Windows Vista Personal desktop computers Notebooks Multiuser Operating SystemWindows Server 2008 Networks (home & business) Mainframes Supercomputers Chapter 5 : Lane & McCabe

Desktop & Notebook Operating Systems Windows Mac OS Linux Chapter 5 : Lane & McCabe

Operating Systems For Servers And Mainframes Larger computers, which are known as mainframes and servers need a different type of operating system that supports multiple users requesting multiple tasks simultaneously. Chapter 5 : Lane & McCabe

Operating Systems For Servers And Mainframes Most common operating systems that run large servers and networks are Windows Server and UNIX. Chapter 5 : Lane & McCabe

What The Operating System Does Similar to a traffic cop coordinating the flow of data and information through the computer system. 1.Provides a way for the user to interact with the computer. Chapter 5 : Lane & McCabe

What The Operating System Does 2.Manages the Processer or CPU Chapter 5 : Lane & McCabe

What The Operating System Does 3.Manages the memory and storage Chapter 5 : Lane & McCabe

RAM Has limited capacity, when RAM runs out the operating system borrows room from hard drive space called virtual memory. Only a portion of hard drive is allocated to virtual memory Thrashing: Excessive paging Chapter 5 : Lane & McCabe

What The Operating System Does 4.Manages the computer system’s hard-ware and peripheral devices Chapter 5 : Lane & McCabe

What The Operating System Does 5.Provides a consistent means for software applications to work with the CPU Application Programming Interfaces Rather than having the same blocks of code for similar procedures in each software application, the operating system includes blocks of code. Software programmers need only refer to the API code blocks in their individual application programs rather than including the entire code in the application itself. Chapter 5 : Lane & McCabe

The Boot Process: Starting Your Computer 1.The basic input/output system (BIOS) is activated by powering on the CPU Chapter 5 : Lane & McCabe

The Boot Process: Starting Your Computer 2. The BIOS checks that all attached devices are in place (power-on self- test or POST) Chapter 5 : Lane & McCabe

The Boot Process: Starting Your Computer 3. The operating system is loading into RAM *the kernel: (essential component of the operating system that remains in the RAM when your computer is powered on) Chapter 5 : Lane & McCabe

The Boot Process: Starting Your Computer 4. Configuration and customization settings are checked Chapter 5 : Lane & McCabe

Handling Errors In The Book Process Uninstall recently installed software Restart your computer in Safe Mode Try a system restore System Restore: Used to roll back to a past configuration Chapter 5 : Lane & McCabe

Safe Mode Tutorial Chapter 5 : Lane & McCabe

Desktop & Windows Features Desktop: The first interaction you have with the operating system and the first image you see on the monitor. Contains all elements necessary for productive work session in features such as recycling bin, documents, computer, sidebar & gadgets, and all programs. Windows: Rectangular panes on your computer screen that display applications running on your system. Chapter 5 : Lane & McCabe

Title Bar Minimize Button Close Button Maximize Button Ribbon Document View Options Scroll Bar Desktop & Windows Features

Organizing Your Computer: File Management An additional function of an operating system is to enable file management: Proving organization structure to the computer’s contents. Chapter 5 : Lane & McCabe

Organizing Your Computer: File Management File Windows organizes the contents of the computer in a hierarchical structure with drives, folders, subfolders, and files. EX: Shared Drive, C Drive, My Pictures Hard Drive (C Drive) Chapter 5 : Lane & McCabe

Navigation pane with links to favorite folders Click to display the music folder Video folder selected Folders presented in a hierarchical Structure Files And Folders Inside Video Folder Locating And Seeing The Contents Of My Computer Search Link

View Of File/Folder Tiles ViewDisplayed as icon in list form Includes file name, application associated with the file, and file size Details View Most interactive view. Files and folders are displayed in lost form and the additional file information is displayed in columns alongside file name. Enables you to sort, list, and display files in a variety of way for quick access. List ViewDisplay of even smaller icon and file names. Good view if you have a lot of content in the folder and need to see most or all of it at once. Small & Medium Icon Views Displays files and folders as icons in list form, but the icons are small or medium size and include no other file information than the file name. Large Icon View Shows contents of folders as small icons. Viewing & Sorting Files And Folders Chapter 5 : Lane & McCabe

Naming Files File Name: Generally the name you assign to the file when you save it Extension or File Type: Identifies what kind of family of files the file belongs to or which application should be used to read the file. EX:.doc : word processing document,.pdf : portable document format,.pptx : PowerPoint presentation You can determine the location of a file by its file path which starts with the drive n which the file is located and includes all folders, subfolders, the file name, and extension. Backslash characters are path separators. EX: Chapter 5 : Lane & McCabe

Working With Files Open File Copy A File (1 Copy Made In Windows Explorer between folders on same drive) Move A File Deleted Files (Go To Recycling Bin) Permanently Deleting Files Retrieving Deleted File Chapter 5 : Lane & McCabe

Utility Programs Def: Small applications that perform special functions. Some help manage system resources (defrag utilities), others help make your time and work on the computer more pleasant (screen savers), and others improve efficiency(file compression utilities). Some are incorporated into the operating system while others are sold as stand alone off the shelf programs or as web based services available for an annual fee. Chapter 5 : Lane & McCabe

Utility Programs  Display Utilities  The Add Or Remove Programs Utility  File Compression Utilities  System Maintenance Utilities  Task Manager Utility Chapter 5 : Lane & McCabe

THE END  The Task Scheduler Utility  Accessibility Utilities  System Restore  Backup Utility Chapter 5 : Lane & McCabe Utility Programs