Discovering Computer

Disc overing computing machines ? Chapter 1 Introduction to figurers Chapter 1 Objectives Recognize the richness of estimator literacy Define the term, computing device Describe the categories of computers Identify the components of a computer debate the advantages and disadvantages of using computers Recognize the purpose of a network Discuss the s inditeds of the lucre and World Wide Web Discuss variant computer application programs in society Identify the elements of an learning system Describe the various types of computer exploiters Distinguish between system softw ar system product product and application softwargon bordering A World of reckoners What is computer literacy (digital literacy)? Current knowledge and collar of computers and their uses ? information processing systems are everywhere next What Is a Computer? How is a computer defined? ? Electronic device operating under the control of book of instruction manual butt ind in its own memory Proc esses data into information Conveys meaning and is utilitarian to sight Accepts data Collection of unprocessed items Produces and stores results nigh What Is a Computer? What is the information processing cycle? ? ? ? ? ? Input Process Output retention Communication adjacent The Components of a Computer What is an input device? ? computer hardware used to enter data and instruction manual future(a) The Components of a ComputerWhat is an payoff device? ? ironware that conveys information to one or more people undermentioned The Components of a Computer What is the system unit? Case that contains the electronic components of the computer that are used to process data ? abutting The Components of a Computer What are two main components on the m differentboard? Processor excessively called a Central Processing Unit (CPU) The electronic component that interprets and carries taboo the basic instructions that operate the computer Memory Consists of electronic components that sto re instructions waiting to be executed and data needed by those instructions Next The Components of a ComputerWhat is memory? ? Holds data, instructions, and information for future use memory board media Physical material on which data, instructions, and information are stored Storage device Records and retrieves items to and from storage media Next The Components of a Computer What is a USB gaudy drive? ?Portable storage device ? Small and lightweight becoming to be transported on a keychain or in a air air hole ? The average USB flash drive can hold about 2 billion characters Next The Components of a Computer What is a hard harrow? ? Provides greater storage capacity than a USB flash drive ? close are housed inside the system unit NextThe Components of a Computer What is a compact disc? ? Flat, round, portable metal disc ? ? CD videodisc Next The Components of a Computer What is a communications device? Hardware component that enables a computer to send and receive data, in structions, and information Occurs over cables, telephone lines, cellular radio networks, satellites, and other transmission media Next Advantages and Disadvantages of utilise Computers What are the advantages of using computers? Speed Reliability Consistency Storage communication theory Next Advantages and Disadvantages of Using Computers What are the disadvantages of using computers? Violation of PrivacyPublic Safety extend to on Labor Force Health Risks Impact on surroundings Next Networks and the Internet What is a network? ? Collection of computers and devices connected together, oft wirelessly Used to share Resources Hardware devices Software programs Data Information Saves cadence and money Next Networks and the Internet What is a host? ? A innkeeper controls access to resources on a network ? Clients, or workstations, request resources from the server Next Networks and the Internet What is the Internet? ? Worldwide collection of networks that connects millions of bu sinesses, government agencies, educational institutions, and individualsNext Networks and the Internet Why do users access the Internet? 1. Communications 2. enquiry and Information 3. Shopping 4. Banking and Investing 5. Classes 6. Entertainment 7. Download Music 8. share Information Next Networks and the Internet What is the Web? ? Billions of documents, called Web pages, for sale to anyone connected to the Internet A Web order is a collection of colligate Web pages You can share information on a kind networking Web site or a photo sharing familiarity A podcast is recorded audio stored on a Web site that can be downloaded A Web page contains text, graphics, audio, video, and links to other Web pagesA blog consists of timestamped articles in a journal format Next Computer Software What is bundle? Consists of a series of instructions that tells the computer what to do and how to do it Also called a program Next Computer Software What is a graphical user interface (GUI)? ? All ows you to interact with the software using text, graphics, and visual images such as icons ? Controls how you enter data and instructions and how the screen displays information Next Computer Software What is system software? ? Programs that control or maintain the operations of the computer and its devices Operating carcass (OS) s a set of programs that coordinates all activities among computer hardware devices value Programs allow the user to perform maintenance-type tasks usually related to managing a computer, its devices or its programs Next Computer Software What is application software? ? Programs designed to shed users more productive Word Processing Database Spreadsheet Presentation Graphics Next Computer Software How do you install and run programs? Next Computer Software JavaScript What is a programmer? ? Someone who develops software ? Programmer writes the instructions to direct the computer to process data into information Web application NextCategories of Computer s What are the categories of computers? personal Computers ( setting) spry Computers and winding Devices Game Consoles Servers Mainframes Supercomputers Embedded Computers Next Personal Computers What are the two most(prenominal) popular styles of personal computers? ? PC and compatibles use the Windows operating system ? Apple mackintosh usually uses the Macintosh operating system (Mac OS X) Next Personal Computers What is a desktop computer? ? Designed so all of the components burst entirely on or under a desk or table Next quick Computers and nimble Devices What is a notebook computer? ? Portable, small enough to fit on your lap ?Also called a laptop computer ? unremarkably more expensive than a desktop computer with equal capabilities Next Mobile Computers and Mobile Devices What is a Tablet PC? ? Resembles a letter-sized slate ? Allows you to write on the screen using a digital pen ? Especially useful for taking notes Next Mobile Computers and Mobile Devices What are mo bile devices? Small enough to carry in a pocket Internet-enabled telephone is a smart phone Next Mobile Computers and Mobile Devices What is a handheld computer? Small enough to fit in one hand Used by mobile employees such as meter readers and delivery people Next Mobile Computers and Mobile DevicesWhat is a personal digital assistant (PDA)? ? Provides personal organizer functions ? ? ? ? ? Calendar assigning book Address book Calculator Notepad Next Mobile Computers and Mobile Devices What are smart phones? Next Game Consoles What are game consoles? Mobile computing device designed for single-player or multiplayer video games Next Servers What types of servers are there? A server controls access to network resources and provides centralized storage Mainframe Very powerful, expensive computer that supports thousands of connected users Supercomputer The fastest, most powerful, most expensive computer.Used for applications requiring complex mathematical calculations Next Embedded Co mputers What is an embedded computer? ? A special-purpose computer that functions as a component in a larger product Next Elements of an Information System What are information system elements? ? ? ? ? ? Hardware Software Data People Procedures Next Examples of Computer Usage What software is available for a home user? ? Personal finance management ? Web access ? Communications ? Entertainment Next Examples of Computer Usage What software is available for a small post/home office (SOHO) user? ? ? ? Productivity software Specialty software Web usage E-mail Next Examples of Computer Usage What is available for a mobile user? ? Hardware ? ? ? ? Notebook computers Tablet PCs Internet-enabled PDAs wound phones ? Software ? ? ? Word processing Spreadsheet Presentation graphics software Next Examples of Computer Usage What are the needs of a power user? ? Speed and large amounts of storage ? Types of power users ? ? ? ? ? Engineers Scientists Architects Desktop publishers Graphic artists Next Examples of Computer Usage What are the needs of the large business user? ? ? ? Payroll Inventory E-commerce Desktop publishing Next Computer Applications in Society What are some examples of computer applications in society? ? ? ? ? ? ? ? ? raising Finance Government Health Care Science Publishing run Manufacturing Next Summary of Introduction to Computers Basic computer concepts The term, computer The uses of the Internet Computer software Categories of computers Types of computer users Computer applications in society The components of a computer The advantages and disadvantages of using computers The purpose of a network Chapter 1 fare