Internet and Email Skills
OPTOMETRY · SEMESTER 1 Internet and Email Skills Computer Applications START READING NOTES Contents of This Topic Session 04: INTERNET What Is the Internet? Other types of network are: Types of network cont.…… Internet connects millions of computers, webpages, websites, and servers together. 1.Hub Difference between Internet and Intranet How do I connect to the Internet? Internet Service Provider Modem What is Web or WWW? What is Browser? URL (UNIFORM RESOURCES LOCATOR) Protocol Domain name (top level domain) DOMAIN NAME Domain name of a host computer includes Example Common Abbreviations in URLs Internet Communications Types of Internet service Advantages of using internet Internet and Email Skills Disadvantages of using internet Search information using internet There are many different search engines you can use, but some of the most popular include Google, Yahoo!, and Bing. How to search information on the internet(Google) Homework Download files from internet When users want to keep the data on their device, they download the data to it. Creating an Email account and manage messages Email messages are usually encoded in American Standard Code for Information Interchange (ASCII) format. The main components of an email message Typically, an email header contains the following information: Recipient email address. This is the email address of the recipient or where the message was sent. ADVANTAGES OF E-MAILS DISADVANTAGES OF E-MAIL Disadvantages of email Creating an Email account(Email address) Steps to create Gmail account Steps to send email in Gmail Steps to send email attachment in Gmail HOMEWORK MODULE: COMPUTER APPLICATIONS Session 04: Apply internet and email skills in accessing medical records Learning Objectives Describe terminologies related to internet Explain the advantages and disadvantages of using internet Search information using internet Download different files from the websites Create an email account and manage messages Send file through Email INTERNET Can you remember a time when you could not tweet, post, email, blog, snap, streaming or like someone online? Many people today have grown up being able to do all of these things. But there was a time when none of this was possible. What makes this possible today is what we call the Internet. What Is the Internet? The Internet is a global wide area network that connects computer systems across the world. What is a network? Refers to interconnected computing devices that can exchange data and share resources with each other. The Internet is the most basic example of a Wide area network (WAN), connecting all computers together around the world. Other types of network are: Local area network (LAN) – Network that covers small geographical area like office, building or small college. Metropolitan area network (MAN) – Network that covers large area like City , multiple cities or towns Virtual Private Network (VPN) Creates a secure, encrypted connection between devices, allow them to communicate privately over a public network like the internet. Types of network cont.…… Wireless Local Area Network (WLAN) Is a LAN that uses wireless technology (like Wi-Fi) to connect devices. Storage Area Network (SAN) Is a high speed network that connects storage devices (like hard drives) to servers, enabling efficient data transfer and storage. Internet connects millions of computers, webpages, websites, and servers together. Using the internet we can send emails, photos, videos, messages to our loved ones. If your device is connected to the Internet then only you will be able to access all the applications, websites, social media apps, and many more services. Internet nowadays is considered as the fastest medium for sending and receiving information. 1.Hub 2.Switch 3.Router 4.Bridge 5.Gateway 6.Modem 7. Repeater 8.Access Point 9.Server 10.Computer Here are the common network devices: Difference between Internet and Intranet Generally, most people are confused between the internet and the intranet. While there are exist lots of differences to differentiate them. Intranet is the type of internet that is used privately. It is a private network therefore anyone can’t access the intranet. On the intranet, there is a limited number of users and it provides a piece of limited information to its users. How do I connect to the Internet? Once you've set up your computer, you may want to purchase Internet access so you can send and receive email, browse the Web, stream videos, and more. There are three ingredients needed to access the Internet from a laptop or desktop computer: an ISP (Internet service provider) a modem and a Web browser Internet Service Provider The term “internet service provider (ISP)” refers to a company that provides access to the internet to both personal and business customers ISPs make it possible for their customers to surf the web, shop online, conduct business, and connect with family and friends—all for a fee. Examples of ISP in Tanzania are TTCL, Vodacom, Airtel e.t.c Modem Is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio. What is Web or WWW? The World Wide Web (WWW), commonly known as the Web, is an information system enabling documents and other web resources to be accessed over the Internet. The Web uses HTTP protocol to transmit data and share information. Browsers are used to access Web documents, or Web pages and other web resources such as pictures, videos and audio What is Browser? Is a software application used to access information on the World Wide Web( WWW) Is application software for accessing websites. Browsers are used on a range of devices, including desktops, laptops, tablets, and smartphones. The most used browsers are Google chrome, Microsoft Edge, Mozilla Firefox, Opera mini, Safari, Brave, Netscape Navigator etc. The purpose of a web browser is to fetch content from the World Wide Web or from local storage and display it on a user's device. This process begins when the user inputs a Uniform Resource Locator (URL), such as https://www.mccohas.ac.tz, into the browser. URL (UNIFORM RESOURCES LOCATOR) Is the pathname to display resources available on internet List the parts of URL Protocol name Host part Domain