Internet Education

I can’t read some Web pages. Can I make the text bigger?

In Internet Explorer:

  • Click View from the menu at the top of the screen.
  • Run your mouse pointer down to Text Size.
  • A new menu will appear. Select the size you want.
What is a bit?

Bit is often used as an abbreviation for “Binary Digit.” A bit is the smallest unit of information in the digital data communications system.

What is Java?

Java is a high-level programming language developed by Sun and designed from the ground up to run on multiple platforms. It is object-oriented, meaning that the programmer defines the type of data structure, as well as the functions that can be applied to that structure. The result is a programming object where the function and data are encapsulated, which makes the software easier to modify. Java is a portable language, meaning the application code does not have to be rewritten to run on different platforms. Java is distributed, providing high-level support for networking. Java applications can be written once and run on any platform running Java Virtual Machine (JVM,) a client-side application that creates a computer within software (hence the virtual). This runs Java and gives it its portability. Any platform, be it Apple/Mac, Windows, UNIX or Linux, is Java capable as long as it is running JVM. Most computer users have at least one JVM on their system. Microsoft’s Internet Explorer is a Java-enabled browser.

What is a MAC address?

A Media Access Control address is the 48-bit defined number built into any Ethernet device connected to a LAN. This could be on a router, firewall or server. This number is unique to each interface. It is “burnt” into the hardware. This address uniquely identifies each node of a network. This is also known as the “hardware address” or “physical address.” An example of a MAC address would be: 00-02-A5-32-1E-05.

What are cookies and how are they used?

A “cookie” is a file placed on your hard drive by a website you visit. Cookies contain information about your preferences, so the website can tailor its appearance according to your needs. This saves time when you visit the site the next time. Cookies can also be used to track where a user has been within a website.

How many megabytes are in an email, Web page, song or video?

The size of anything on the Web will vary enormously. There are ways to check the sizes of the files you download. The following examples are for Microsoft Outlook and Internet Explorer.

To check the size of an email:
Open the email.
In the menu bar, click on File.
Scan the list and click on Properties.
A dialog box showing the file size will appear.

To check the size of a Web page:
In the menu at the top of Internet Explorer, click on File.
Click on Properties.
A dialog box showing the file size will appear.

To check the size of an MP3 or song file:
Move your mouse over the top of the songs icon.
Right-click on the icon.
Click on Properties.
A dialog box showing the file size will appear.

What is a subdomain?

A subdomain is a domain that is part of a larger domain name. For example, in the domain name web.hargray.com, “web” is a subdomain of the larger second-level domain “hargray.com.”

What is a domain name?

A domain name is a unique, meaningful and easy-to-remember identifier that locates an organization or other entity on the Internet. The Internet uses numerical Internet Protocol (IP) addresses to locate and communicate with other computers. Domain names were developed to permit the use of easily remembered words and phrases to identify Internet addresses without having to remember the exact numeric address. For example, the domain name hargray.com.

Can I access my domain address without the “www”?

Yes, you can access the domain address with or without the “www” in front of the domain name. Example: www.hargray.com and hargray.com are acceptable, whichever you prefer.

What are some commonly used acronyms and their meanings?

As you use the Internet, you’ll come across numerous acronyms. Here are some common ones:


Email (short for electronic mail) and News:

  • POP: Post Office Protocol. This is the common standard used to transfer your email from your ISP’s mail server to your computer.
  • SMTPSimple Mail Transfer Protocol. This is the common standard used to send mail from your computer.
  • NNTP: Network News Transport Protocol. This is the newsgroup propagation and delivery system.
  • IMAP: Internet Mail Access Protocol. This is a more advanced email protocol, which allows greater functionality on a remote server.

 

The rest of the Internet:

  • HTML: Hypertext Markup Language. The language of the Web. A text document with tags in it to tell your browser to display the text in a particular way.
  • HTTP: Hypertext Transfer Protocol. This is the protocol by which Web pages are delivered to your computer.
  • HTTPS: Hypertext Transfer Protocol Secure sockets. This is a secure version of HTTP.
  • URL: Uniform Resource Locator. This is the address that humans use to remember things.  http://web.hargray.com/ is a URL.
  • FTP: File Transfer Protocol. Agreed protocol for transferring a file between two computers.
  • DNS: Domain Name System. Essentially, this is a big database that gives names to things and points you to where they are. Also used to refer to a Domain Name Server, though this is technically incorrect.
  • IP: Internet Protocol. The system of numbers that makes the Internet work.
What is an IP address?

An IP (Internet Protocol) address is a unique 32-bit number that identifies the location of your computer on a network. It works like your street address, as a way to find out exactly where you are and deliver information to you.

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