Introduction to Networking:
"Three things are certain:
Death, taxes, and lost data.
Guess which has occurred."

This module is an introduction to networking and networking terminology. It gives a brief history of networking and advances in the networking field over the past 35-40 years. The last part of the module deals with network math. (numbering systems) The use of decimal, binary and hexadecimal numbering systems in networking and how to convert values into each of the numbering systems is covered.

Vocabulary - Key Terms:

• Network Interface Card (NIC)- An expansion board so the computer can be connected to a network.
• Parallel Port-An interface capable of sending more than one bit simultaneously that is used to connect external devices.
• Firewire-A serial bus standard offering high-speed communications and isochronous real-time data service.
• Bus- A collection of wires on the motherboard used to send signals from one part of the computer to another.
• Transistor - A solid state device that amplifies a signal or opens and closes a circuit.
• Integrated circuit (IC) - A device made of semiconductor material that contains many transistors and performs a specific task.
• Resistor - A device that is made of material that opposes the flow of electric current.
• Capacitor - An electronic component that stores energy in the form of an electrostatic field. It consists of two conducting metal plates separated by an insulating material.

Related Articles:
How to convert Binary to Hexadecimal

Related Concepts:
The hexadecimal color system is also used in most web based web publishing like HTML, PHP, CSS, ASP, XML, and many more. The Color code system is very simple it works with the RGB system the color code system (R G B) an example color is #0080C0 this is a nice shade of blue. All color codes start with “#” then there is 3 hexadecimal numbers in the example #0080C0 the first two 00 mean that there is no shade of red it the color the second two numbers refer to the green color aspect of the color code in the example #0080C0, 80 means that the Green shade is 128 and final the last two hexadecimal numbers C0 means 192 in the decimal number system. That mean the color code in the decimal number system is 0 128 and 192 and remember the higher the number the in each segment of the color code the lighter the shade. So if you had the code #ffffff you would have the color white and #000000 you would get the color black.


Key Concepts:
Information on TCP/IP
How switches work
All you need to know about Hexadecimal
Information on hex editing
Binary numeral system
Firewire
NIC
Parallel Port Complere info
How does a T1 line work

Pictures:







Course Materials:


CCNA 1 - Module 1 - Study Guide (.pdf)