Future of Computers Internet Metcalfes Law Robert Metcalfe

Future of Computers Internet

Metcalfe’s Law Robert Metcalfe, Inventor of Ethernet (HIGH SPEED INTERNET) Made prediction and It became VERY true!!! (METCALFE’S LAW OF CONNECTIVITY)

ROBERT METCALFE TALKING VIDEO

Metcalfe’s Law of Connectivity That the power/value of a network increases in proportion to the square of the number of nodes on the network. 2 Computers = 1 connection 3 Computers = 3 connections 4 Computers = 6 connections 5 Computers = 10 connections 10 Computers = 45 connections 12 Computers = 66 connections

This is what 20 connections looks like! Image what a billion looks like! 100 = almost 5000 Connections! So, the more that join the internet the more useful the internet becomes exponentially!!!

Morse Code

Dashes and Dots Represent Letters, Numbers, and Punctuation

Computers Use Binary Code

DIGITAL! • DIGITAL – it means that ONLY {off or on/0 or 1} is transmitted. Not Waves, Etc. • So, a CELL phone converts you the sound waves of your voice into radio waves. • A DIGITAL phone converts the sound waves of your voice into 1’s and 0’s and transmits the Binary Code of 1’s and 0’s ONLY.

Binary • 8 1’s and 0’s represent each number, letter, punctuation, symbol.

VIDEO

Fiber Optics

• Fire a laser down the strand • The fiber is coated with a mirrored surface so that none of the light can escape even if the strand bends or flexes • Can be as thin as a human hair • Can travel for thousands of miles • Each strand can carry 10 billion pulses of information per second.

FIBER OPTICS GOOGLE IS STARTING TO BUILD 100% FIBER NETWORK • 1, 000’s of times faster than high speed • Download a Blue Ray in a few minutes!!! DVD in seconds

Fiber Optics That Are Already Used in Homes

LASER DANGER!!!! • LASERS CAN CAUSE BLIND SPOTS IN YOUR VISION!!!! • YOU DON’T FEEL IT OR NOTICE IT WHEN IT HAPPENS (UNLESS THE LASER IS INCREDIBLY POWERFUL!)

LASER DANGER!!!!

Internet Business • Bunch of new companies • Thousand have already failed • Stock market Bubble and Collapse • 100’s of Billions Lost • Some Companies have BOOMED

Jeff Bezos • Get big fast • Profits not always as important as growth • Single User Encryption • Seattle

What is Encryption? • It is sending a message in CODED FORM. • Usually both people have to know the encryption to do this. • However, Jeff found a way to do it so that only one person knows the encryption!

Single User Encryption • What is the difference about single user encryption? = Watch The Demonstration! • Main Reason That Website Businesses Can Run! • Jeff Bezos Came Up With It • That’s Why He is a Multi. Billionaire

VIDEO

Pierre Omidyar • People were essentially good • Big business wasn’t the always the best way • Silicon Valley