Intro to Computer Chapter 1 PDF

Introduction in Today’s Technologies Chapter 1 Objectives Recognize the importance of computer literacy Describe the categories of computers Identify the components of a computer...

Introduction in Today’s Technologies Chapter 1 Objectives Recognize the importance of computer literacy Describe the categories of computers Identify the components of a computer Identify the types of computer users Discuss the uses of the Internet and World Wide Web Discuss various computer applications in society Identify the categories of software Next  Today’s Technology Technology can enable you to more efficiently and effectively access and search for information; share personal ideas, photos, and videos with friends, family, and others; communicate with and meet other people; manage finances; shop for goods and services; play games or access other sources of entertainment; keep your life and activities organized; and conduct business activities. Digital Literacy –involves having a current knowledge and understanding of computers, mobile devices, the web, and related technologies. A World of Computers What is computer literacy?  Knowledge and understanding of computers and their uses  Computers are everywhere Next What Is a Computer? How is a computer defined?  Electronic device operating under the control of instructions stored in its own memory Processes data into Accepts data information Raw facts, figures, and Data that is organized, symbols meaningful, and useful Produces and stores results Next Advantages and Disadvantages of Using Computers What are the advantages of using computers? Speed Reliability Consistency Storage Communications Next Advantages and Disadvantages of Using Computers What are the disadvantages of using computers? Violation of Public Safety Privacy Impact on Impact on Health Risks Labor Force Environment Next What Is a Computer? What is the information processing cycle?  Input  Process  Output  Storage  Communication Next The Components of a Computer What is an input device?  Hardware used to enter data and instructions Next The Components of a Computer What is an output device?  Hardware that conveys information to one or more people Next The Components of a Computer What is the system unit?  Case containing electronic components of the computer that are used to process data Next The Components of a Computer What are two main components on the motherboard? Processor Also called a Central Processing Unit (CPU) The electronic component that interprets and carries out the basic instructions that operate the computer Memory Consists of electronic components that store instructions waiting to be executed and data needed by those instructions Next The Components of a Computer What is storage?  Holds data, instructions, and information for future use Storage media Physical material on which data, instructions, and information are stored Storage device Records and retrieves items to and from a storage medium Next The Components of a Computer What is storage media? Hard Disks USB Flash Drives CDs Memory Cards DVDs Next The Components of a Computer What is a storage device? Retrieves Records (writes) (reads) items to storage items from media storage Often function media as a source of input Next The Components of a Computer What is a USB flash drive? Portable storage device Small and lightweight enough to be transported on a keychain or in a pocket The average USB flash drive can hold about 500 million characters Next The Components of a Computer What is a hard disk?  Provides greater storage capacity than a USB flash drive  Most are housed inside of the system unit Next The Components of a Computer What is a compact disc?  Flat, round, portable metal disc  CD-ROM  DVD-ROM Next The Components of a Computer What is a communications device? Hardware component that enables a computer to send and receive data, instructions, and information Occurs over cables, telephone lines, cellular radio networks, satellites, and other transmission media Next Networks and the Internet  A network is a collection of computers and devices connected together Used to share Resources Hardware devices Software programs Data To save Information time and money Next Networks and the Internet What is the Internet?  Worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals Next Networks and the Internet Why do users access the Internet? 1. Communications 2. 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, available to anyone connected to the Internet A podcast is A Web site is You can share recorded audio a collection of information on a social stored on a Web site related Web pages networking Web site that can be downloaded A Web page contains A blog consists of time- text, graphics, audio, stamped articles in video, and links to a journal format other Web pages Next COMPUTER SYSTEM Next BASIC HARDWARE COMPONENT Next Computer Software What is software? Consists of a series of instructions that Also called a tells the computer program what to do and how to do it Next Types of Software Next Computer Software What is a graphical user interface (GUI)?  Allows you to interact with the software using 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 System (OS) is a set of programs that coordinates all activities among computer hardware Utility Programs allow the user to devices 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 make users more productive Word Spreadsheet Processing Presentation Database Graphics Next  Computer Software How do you install and run programs? Step 1: INSTALL When you insert a greeting card program disc in the CD drive for the first time, the computer begins the procedure of installing the greeting card program on the hard disk. Step 3: USE Step 2: RUN The greeting card program Once installed, you can executes. Using this program, instruct the computer to run you can create custom greeting the greeting card program. cards. The computer transfers instructions from the hard disk to memory. Next Computer Software What is a programmer?  Someone who develops application or system software  Programmer writes the instructions to direct the computer to process data into information Next Categories of Computers What are the categories of computers? Personal Computers (desktop) Mobile Computers and Mobile Devices Game Consoles Servers Mainframes Supercomputers Embedded Computers Next Personal Computers What are the two most popular series of personal computers?  Apple Macintosh  PC and compatibles usually uses the use the Windows Macintosh operating operating system system (Mac OS X) Next Personal Computers What is a desktop computer?  Designed so all of the components fit on or under a desk or table Next Mobile Computers and Mobile Devices What is a notebook computer?  Portable, small enough to fit on your lap  Also called a laptop computer  Generally more expensive than desktop computers 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 is a handheld computer? Small enough to fit in one Sometimes referred to hand as an ultra-personal computer (uPC), or an Ultra-Mobile PC (UMPC), or a handtop computer Next Mobile Computers and Mobile Devices What is a personal digital assistant (PDA)?  Provides personal organizer functions  Calendar  Appointment book  Address book  Calculator  Notepad Next  Mobile Computers and Mobile Devices What are smart phones? A smart phone is an Internet-enabled telephone that usually provides PDA capabilities 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 Computers What is an embedded computer?  A special-purpose computer that functions as a component in a larger product 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 office/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  Smart phone  Software  Word processing  Spreadsheet  Presentation graphics software Next Examples of Computer Usage What are the needs of a power user?  Extremely fast processors  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?  Education  Finance  Government  Health Care  Science  Publishing  Travel  Manufacturing Next Summary of Introduction to Computers The computer and its components Categories of computers What is a network? Types of computer users The Internet Computer applications in society Types of software Chapter 1 Complete