Personal Computer and 11th Edition

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11th Edition

TODAY AND TOMORROW
Group name: Group home page: Group email: p cc111_ssag http://groups.yahoo.com/group/cc111_ssag cc111_ssag@yahoogroups.com g@y g p

CHAPTER C
Chapter 1

Introduction to the World p of Computers
Understanding Computers, 11th Edition 1

Learning Objectives
Explain why it is essential to learn about computers today and discuss several ways computers are integrated into our business and personal lives. Define a computer and describe its primary operations operations. List some important milestones in computer evolution. Identify the major parts of a personal computer computer, including input, processing, output, storage, and communications hardware. Define software and understand how it is used to instruct the computer what to do.

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Learning Objectives, Cont’d
List the five basic types of computers, giving at least one example of each type of computer and stating what that computer might be used for. Explain what a network the Internet and the World network, Internet, Wide Web are, as well as how computers, people, and Web pages are identified on the Internet. Describe how to access a Web page. Discuss the societal impact of computers, including some benefits and risks related to their prominence in our society.

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Overview
This chapter covers: What computers do and how they work Computer terminology Different categories of computers An overview of networks and the Internet Societal impacts of computers Chapter 1 Understanding Computers, 11th Edition 4

Computers in Your Life
Why learn about computers? Basic comp ter literac computer literacy—knowing abo t and kno ing about understanding computers and their uses—is an y y essential skill today for everyone Computers in the home Look up information, exchange e-mail, shop, download music and movies, research products, pay bills and manage bank accounts check news and accounts, weather, store and organize digital photos, play games, plan vacations, work at home, and more Chapter 1 Understanding Computers, 11th Edition 5

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Computers in Your Life, Cont’d
Computers in education: K-12 schools, from straight drill-and-practice drill and practice programs to using the computer as an overall student-based learning tool. Colleges and universities, classrooms, computer labs, dorms, , , p , , libraries

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Computers in Your Life, Cont’d
Computers in the workplace: Multinational corporation CEOs, check-out clerks CEOs check out clerks, traveling salespeople, police salespeople officers, insurance adjusters, doctors and nurses, auto mechanics

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Computers in Your Life, Cont’d
Computers on the go: portable PCs, Wi-Fi PCs Wi Fi hotspots, Internet cafes, ATM machines, gym ID cards, gas or parking smart cards, portable GPS, kiosks

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What Is a Computer and What Does It Do?
Computer: programmable, electronic device that accepts data performs operations presents the data, operations, results, and can store the data or results Input—entering data into the computer Processing—performing operations on the data Output—presenting the results Storage—saving d t programs, or output for future St i data, t tf f t use Chapter 1 Understanding Computers, 11th Edition 10

What Is a Computer and What Does It Do? Cont’d

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Data vs. Information
Data = raw, unorganized facts Can be in the form of text, graphics, audio, or

video
Information = data that has been processed into a meaningful form

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Computers Then and Now
The computer as we know it is a fairly recent invention...
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