All praise is due to ALLAH; and blessings and peace be upon His messenger and servant, Muhammad, and upon his family and companions and whoever follows his guidance until the Day of Resurrection. The advances in the science and technology in different areas in the last 50 years were noticeable. However, in the beginning of this century, most of the development and advances may go to be in the areas of communication and computer. The advances in the technology in these areas decided the one who would control the economy and the security of our globe. This website will introduce an educational topics in some area of the communications and Internet. Some of the material presented in this site will be for the electrical engineering students of the college of engineering at King Saud University, Riyadh, Saudi Arabia.