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Computing Essentials Presentation Tips Click the mouse to advance the slides Click the hyperlink to directly advance to the slide associated with the link; click Return to go back to the calling slide associated with the hyperlink Discussion questions are set to progressively appear on each mouse click All key terms are defined in the speakers notes for all chapters

Computing Essentials Learning Objectives Explain the parts of an information system: people, procedures, software, hardware, data, and the Internet. Distinguish between system software and application software. Differentiate between the kinds of system software programs. Define and compare general purpose, specialized, and mobile applications. Identify the four types of computers and the four types of personal computers. Describe the different types of computer hardware, including the system unit, input, output, storage, and communication devices. Define data and describe document, worksheet, database, and presentation files. Explain computer connectivity, the wireless revolution, the Internet, and cloud computing.

Computing Essentials Introduction Personal computers are common tools in all areas of life. New forms of learning have developed. College course does not have to be a quarter or semester any longer. Computers offer many new ways to communicate.

Computing Essentials Parts of an Information System People Procedures Software Hardware Data The Internet

Computing Essentials People Most important part of any system Contact is Direct Indirect Computer uses Entertainment Business Medicine Education

Computing Essentials Software There are two major kinds of software: System Software Application Software The purpose of software is to convert data into information.

Computing Essentials System Software Enables application software to interact with the computer hardware Background software helps manage resources Collection of programs Operating Systems Utilities Device Drivers

Computing Essentials System Software cont. Operating System Coordinates computer resources Provides the user interface Runs applications Return

Computing Essentials System Software cont. Utilities Perform specific tasks related to managing computer resources Antivirus Program Device Drivers Programs designed to allow input or output devices to communicate with the computer

Computing Essentials Application Software End-user software Three types General-Purpose applications Specialized applications Mobile apps

Computing Essentials Hardware – Types of Computers  Supercomputers  Mainframe computers  Midrange computers  Personal computers

Computing Essentials Personal Computer Types Desktop Laptop (Notebook) Tablet PC Handheld

Computing Essentials Personal Computer Hardware Four basic categories of equipment System Unit Input/Output Secondary Storage Communications

Computing Essentials System Unit Two important components Microprocessor Memory Holds data currently being processed Holds the processed information before it is output Temporary storage, contents are lost when power is off Return

Computing Essentials Input Keyboard Mouse Output Printer Monitor Input/Output Devices Return

Computing Essentials Secondary Storage Holds data and programs even if power is off Hard disk Solid-state storage No moving parts More reliable Requires less power Optical disc Laser technology Great capacity CDs, DVDs, Blu-ray Return

Computing Essentials Communications Communication devices, such as modems, provide personal computers with the ability to communicate with other computer systems Modems modify audio, video and other types of data into a form that can be transmitted across the Internet

Computing Essentials Data Raw, unprocessed facts Processed data becomes information Digital data is stored electronically in files Document files Worksheet files Database files Presentation fil es Presentation fil es

Computing Essentials Document Files Created by word processors Term papers Memos Letters Return

Computing Essentials Worksheet Files Created by electronic spreadsheets to analyze things like budgets and to predict sales Return

Computing Essentials Database Files Typically created by database management programs to contain highly structured and organized data Return

Computing Essentials Presentation Files Created by presentation graphics programs to prepare presentation materials.

Computing Essentials Connectivity and the Mobile Internet Connectivity Sharing of information Mobile/Wireless devices Cloud computing and the Wireless Revolution Computer networks Connected communication system of computers Largest network is the Internet Cloud Computing Uses the Internet and the Web to shift many computer activities from a user’s computer to computers on the Internet

Computing Essentials Careers in IT For a complete listing of careers, visit Select Student Edition and then Careers CareerDescription WebmasterDevelops and maintains websites and web resources. See page 52 Software EngineerAnalyzes users’ needs and creates application software. See page 81 Computer Support SpecialistProvides technical support to customers and other users. See page 105 Computer TechnicianRepairs and install computer components and systems. See page 132 Technical WriterPrepares instruction manuals, technical reports, and other scientific or technical documents. See page 159 Network AdministratorCreates and maintains computer networks. See page 213

Computing Essentials A Look to the Future Using and Understanding Information Technology The Internet and the Web Powerful Software Powerful Hardware Security, Privacy and Ethics Organizations Changing Times

Computing Essentials Open-Ended Questions (Page 1 of 2) Explain the parts of an information system. What part do people play in this system? What is system software? What kinds of programs are included in system software? Define and compare general-purpose applications, specialized, applications and apps. Describe some different types of general-purpose applications. Describe some types of specialized applications.

Computing Essentials Open-Ended Questions (Page 2 of 2) Describe the different types of computers. What is the most common type? What are the types of personal computers? What is connectivity? What are wireless devices and the wireless revolution? What is a computer network? What are the Internet and the Web? What is cloud computing?