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90 lines
3.2 KiB
Markdown
90 lines
3.2 KiB
Markdown
# CIS105: Computer Applications & Information Systems Lect. 9
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## Chapter 9: Internet
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### 9.1: Internet History
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- 1969: University of California Los Angeles (UCLA) created the Advanced Research Project Agency Network (ARPANET)
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- 1989: Hypertext Transfer Protocol (HTTP) / World Wide Web (WWW)
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- 1993: Hypertext Markup Langauge (HTML)
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### 9.2: Internet and WWW Structure
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- he internet is a network called the Client/Server Model
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- The browser application software interprets HTML and HTTP to create web pages
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- Everything on the internet lives somewhere physically; the trick is using computer addresses to send info from one place to another
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### 9.3: Internet Addresses
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- Internet Protocol Address (IP): An address system used to identify and communicate through the network
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- Uniform Resource Locators (URLs)
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- `https://asu.edu`
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- `https`: refers to standard protocol
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- `www`: refers to the world wide web
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- `Canvas.asu`: domain name
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- `.edu`: a top-level domain code or extension
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### 9.4/9.5: Websites/Browsers
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- Website: A collection of web pages on a server that exists on the web that can be requested by a client and displayed with a browser
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- Hyperlink: Clickable navigation element
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- Browser: An application software that provides an interface for the WWW
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- Aspects of a good website:
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- Content
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- Interactivity
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- Design
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### 9.6: Browser Features
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- Common Browser Features
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- Bookmarks: AKA favorites
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- Caching: Just like a CPU cache on the internet
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- Cookies: Text files used to track info about users
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- Graphics File (GIF, JPEG): Images and videos
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- Javascript: A programming language
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- Used to make websites dynamics; Ex: Countdown timer
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- Browser Considerations:
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- Security
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- Popup Blockers
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- Usability
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### 9.7: Internet Service Providers (ISP)
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- Connectivity: When one computer connects to another and shares info & resources
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- Internet Service Providers (ISP)
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- Dial-up & Digital Subscriber Line (DSL)
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- Broadband Internet Access
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- Web Hosting
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### 9.8: Search Engines
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- Search engine: A website that lets a user type in specific key words or phrases and then return a list of hyperlinks that best match the search criteria
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- Google, Bing, Yahoo
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- Directory searches
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- Metasearch Engines
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- Ex: Dogpile
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### 9.9: E-Commerce
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- Electronic Commerce (E-Commerce): The distribution, buying, selling, advertising, and marketing of goods and services over the web
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- Business-to-Business (B2B)
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- Business-to-Consumer (B2C)
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- Consumer-to-Consumer (C2C)
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- The rules of business still apply to online environments
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### 9.10: Security
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- Malware: Software designed to damage a computer's system without the owner's knowledge
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- Virus
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- Worms
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- Trojan Horse
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- Spyware
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- Adware
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### 9.11/9.12: Email/Email Security
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- Email: "A store and forward" system of composing, sending, storing, and receiving message over electronic communication systems.
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- Never send an email you wouldn't be willing to say in public
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- Phishing: An email that looks official but is malicious in nature
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- Spam: Unwanted mail
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