Introduction to Computers and Internet. CCS CMPTR Chapter 1 Part 3

Transcription

1 Introduction to Computers and Internet CCS CMPTR Chapter 1 Part 3

2 Lecture Shortcuts Internet Computers and Society Assignment 7 End of Chapter Questions Assignment 8 Vocabulary PDF Microsoft Word Lecture

3 Network Collection of computers and devices which are connected Allows users to share hardware, software, and data For example, Mrs. Klaas computer lab is a local area network (LAN) because all the computers are connected. Since they are connected, Mrs. Klaas can share files with students on the M drive.

4 Internet Hardware that connects computers in the largest and most well known computer network in the world

5 What is the World Wide Web? Collection of files or documents called web pages which are available through the Internet

6 Difference between Internet and World Wide Web (WWW) Internet Hardware which makes up the world s largest network WWW Collection of documents or files

7 Internet Service Providers Page 159 Exhibit 5-16 What: A company that provides Internet Access Who: AT & T Frontier Verizon Sprint How to Access Type of device (phone vs. computer) Internet Connection (mobile, cable) Location (city, rural)

8 Accessing the Internet Connection Availability Speed Conventional Dial Up Cheap (Frontier) 56 Kbps is slow Cable Internet Access Fast (Charter Cable) 5-20 Mbps Digital Line Subscriber DSL Direct Connection (Frontier) Doesn t tie up phone line Fast 1-7 Mbps Satellite Clear view southern sky (Hughes) 5-20 Mbps Broadband over fiber Mobile Wireless Fiber Optic Fast Mobile phone network Speed depends on cell service Mbps 700 Kbps-1.7 Mbps

9 Web Site collection of web pages belong to one company Web Server stores web pages; continually connected to Internet Web browser allows viewing of web pages Firefox, Internet Explorer, Google Chrome Web page document on web server

10 Internet Address IP addresses Numeric Internet address that uniquely identifies a computer Example: Domain names Text-based Internet address uniquely identifies a computer Corresponds to IP address Calhoun40.net

11 Domain Name Example http is standard protocol identifier Calhoun.k12.il.us is the web server hosting the page HS is the folder the high school page is in Index.html is the name of the high school page

12 Domain Name Uniquely identifies a computer on the Internet Calhoun40.net It is a text based name that corresponds to a numeric IP address such as ) Far right part of name is top level domain Identifies organization Edu for education, gov for government, com for business, jp for Japan, fr for France (P17)

13 Sample top-level domains (TLDs) Original TLDs Intended use.com Commercial businesses..edu Educational institutions.gov Government organizations.int International treaty organizations.mil Military organizations.net Network providers and ISPs.org Noncommercial organizations Newer TLDs Intended use.aero Aviation industry.biz Businesses.fr French businesses.info Resource sites.jobs Employment sites

14 URL Uniform Resource Locator Uniquely identifies a web page by identifying the protocol, the server hosting the page, the name of any folders on the web server and the filename Enter URL in address bar and web page displays

15 Home Page First page viewed in organization s web site

16 Surfing the Web Using web browser such as Firefox, Internet Explorer, or Chrome to view web pages Tabbed browsing is using tabs to view multiple pages in one browser window Web pages can be saved by bookmarking them using favorites

17 Computers and Society Positive Society Changes Cars, microwaves, toys, phones, bikes Processing banking transactions Exploring space Computers smaller, faster, smarter Provided technological advances in medicine, car design, online classes, speech recognition Negative Society Changes Unsolicited s, harmful programs, legal and ethical issues, Big brother data collection and personal privacy (CIPS can lower thermostat remotely) Stress to body What is done with data collected?

18 Intellectual Property Rights Legal rights to intellectual property Copyright exclusive right to publish, reproduce, distribute, perform or display work Remain in effect 70 years Not required to display copyright notice Must obtain permission to use Review examples on Page 23 #1-20

19 Trademark Work phrase or symbol identifying a service or company (M in McDonalds) Plagiarism Presenting someone else s work as your own Ethics Intellectual Property Rights Standards of moral conduct include telling the truth, not stealing songs by downloading, not copying several copies of a software, not using school printer for personal use, not cheating

20 Environmental Concerns Environmental friendly computer use Minimize use of power and paper Energy Star Labels Unplug devices to save vampire costs Disposal of electronics P27

21 Ergonomics Science of fitting a work environment to the people who work there Properly adjusting furniture to reduce strain Providing keyboards that reduce hand and wrist strain Providing document holders to limit turning of head Antiglare screens Wrist supports P26

22 Etrash Computer waste in landfill Toxic and hazardous materials 700 different chemicals in a desktop including arsenic, lead, mercury, cadmium Proper disposal is important to keep chemicals out of landfills

23 Ethics Standards of moral conduct Telling the truth Beliefs vary according to culture Personal ethics Apply to personal behavior Business ethics Behavior at work Computer ethics Ethical use of computer and Internet

24 Your turn: Explore Concepts 1. Define computer network 2. What is the difference between the Internet and the World Wide Web? 3. What is an Internet Service Provider? 4. What is a home page? 5. What is fastest way to access Internet? 6. What is difference between web site and web page? 7. What is difference between IP address and domain name? 8. What is a URL? 9. What has been a negative impact of the Internet on society? 10. What has been a positive impact of the Internet on society? 11. What is ergonomics? 12. What is etrash? 13. What is ethics? 14. What are intellectual property rights? 15. What is one environmental concern with computers? Answer questions using Word or One Drive Use MLA style Include a footer with document name Use a numbered list Common Core: RI.1, RI.3, RI.4, RI.10, W.4, W.5, W.6, L.1, L.4, L.6

25 Your Turn Vocabulary Assign 7 Internet vs. World Wide Web Web Site Web Page ISP IP address Domain name Web server Web browser URL Surfing the web Intellectual property rights Copyright Fair use Trademark Plagiarism Digital rights management software Digital watermarks Ethics Computer ethics Business ethics Repetitive stress injury Green computing Eco-label E-trash Go to and generate a PDF of flash cards for chapter vocabulary

26 Bibliography CMPTR by PINARD/ROMER pe=none&inps=true&prodid=vrl&usergroupname=ae88 e4180c29c2e8%3a- 7778da4f%3A12cd5004cf2%3A1bcd&resultListType=RES ULT_LIST&searchType=BasicSearchForm&contentSegment = &docId=GALE &i setoc=true&hidesrchreults=true#