Internet Fundamentals and Digital Communication Technologies
Digital Communication and Internet Fundamentals
Electronic Presentations
Electronic presentations are information expositions combining the use of visual and auditory content.
Common programs include Microsoft Office and OpenOffice.org.
Benefits of Electronic Presentations
- Guides the speaker during an exhibition.
- Allows programmed animation effects.
- Easy for the audience to follow and understand.
Applications of Electronic Presentations
- Exposing class issues or educational topics.
- Creating reports (business and general).
- Submitting proposals.
- Visually supporting a conference.
Core Internet Services and Applications
The Internet
The Internet is formed by a set of interconnected local and global networks.
Website and Hyperlinks
A Website is a collection of related web pages that can display pictures, videos, and sounds. Websites allow linking to other pages of the same type through Hyperlinks.
Search Engines
Search engines allow users to locate and find information from various websites.
Electronic Mail (E-mail)
Electronic Mail (E-mail) enables sending and receiving digital correspondence using a digital mailbox.
File Transfer and P2P
File Transfer enables sharing files across networks. P2P (Peer-to-Peer) media servers allow access to computer files of any user.
Discussion Boards, Blogs, and Instant Messaging
- Discussion Boards or Blogs: Forums used for publishing reviews and opinions on various topics.
- Instant Messaging: Real-time written conversations conducted in public or private rooms.
E-commerce and Digital Business
E-commerce allows conducting business transactions through the network.
Videoconferencing and Webcasting
- Videoconferencing: Real-time broadcasting of events or conferences, providing both audio and video.
- Webcasting (Transmission): Content diffusion via radio or TV over the internet.
Remote Access
Remote Access involves managing a computer located at a great distance from a remote terminal.
Web Structure and Navigation
Major Search Engines
Examples of major search engines include:
WWW (World Wide Web)
The WWW (World Wide Web) is written at the beginning of the domain and indicates that the address serves as a web page.
Server and Domain Structure
The Server is the name of the computer hosting the site. The Domain specifies the geographical origin or type of the page (e.g., .com, .org, .mx).
Example Structure: http://www.server.domain
Web Browsers
Web browsers are software applications used to view web pages. Examples include Internet Explorer, Mozilla Firefox, Netscape, and Opera.
Email Providers
Examples of email providers:
Cybersecurity Basics: Password Characteristics
To ensure security, a good password must meet the following criteria:
- Must be at least 8 characters long.
- Should be composed of numbers and symbols.
- Do not use full names of relatives.
- Do not use special dates.