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Computers only understand two digits, 0 and 1. This base two math is known as Binary. 1 represents on and 0 is off. When you type the letter M on your keyboard, it is translated to the Binary code of, 01001101. Every letter, number, pixel you see on your monitor is a binary set of 1's and 0's .

An Intel 600 mhz CPU today has 9.5 million transistors and the aluminum conducting wires in the chip are 1/100,000th of an inch thick .

An Athlon 600 mhz CPU has 22 million transistors.

Moore's Law states that computer performance doubles every 18 to 24 months, and ever since Intel's 4004 chip in 1971, this has been true.

The IBM RAMAC 305 in 1956 stored 5 megabytes of data which cost $10,000 per megabyte. Compared to today at less than a buck a megabyte.

In 1998, 9.4 billion E-mail messages were sent per day.

There are an estimated 800 million web pages available on the web and experts estimate the web doubles in size every 8 months.

Most of your computer electronics use from 3 to 5 volts - Electrostatic discharge you can feel has around 3,000 volts - an ESD shock you can see carries 20,000 volts - an ESD shock of only 30 volts can destroy a computers circuit.

In 1983 Microsoft built it's first mouse but only sold 5,000 of the 100,000 units built. It wasn't until Apple released the Macintosh a year later that a mass audience viewed the mouse as a tool to make computing easier.

The term "Hypertext" was coined in 1965 by Ted Nelson who used it to describe the multimedia system he proposed called "Xanadu"

Microsoft's TerraServer database stores more than one terabyte (1,000 gigabytes) of detailed aerial and satellite photos.

SGI's Blue Mountain super computer at Los Alamos has 1.5 terabytes of RAM, more than any other computer on earth.

In 1981 Bill Gates made the bold statement " 640kb of memory ought to be enough for anybody"

Originally the WWW prefix was used by the scientists at CERN (the European laboratory for Particle Physics) to distinguish Web files from other Internet documents. Today, it's a completely unnecessary part of a Web address. (Personally, I can't forget to stop using it :-)

The largest network on earth, the Internet, started in 1969 with four nodes installed at the University of California-Los Angeles, the University of Califorina-Santa Barbera, the Stanford Research Institute, and the University of Utah.

Domain Name Extensions and Meanings:

.com..........................commercial

.edu..........................educational and research

.gov..........................government

.int............................international organizations

.mil...........................military agency

.net..........................gateway or host

.org.........................non-profit organization

A speck of dust inside a processor, although only the relative size of a soccer ball in the entire country of Ireland, is large enough to cause problems for the chip.

A Bit stands for "Binary Digit" a Bit can hold only one of two values 0 or 1. (see above) A Byte is composed of 8 consecutive bits.

Clock speeds are expressed in megahertz (MHZ) 1 MHZ is equal to one million cycles per second. The computer I'm using now is running at 850 million cycles per second. In the old days an 80286 required 20 cycles to multiply two numbers, today, Processors can execute more than one instruction per clock cycle.

The word "boot" or "booting" comes from the concept of bootstrapping, or pulling oneself up by the bootstraps. Before PC's, computer operators would run a program called the bootstrap loader. This loader did the initialization that is now automatic. The process became known as bootstrapping and later booting.

As of March of 1999, there were over 364 million PC's in use worldwide with 129 million of those in the U.S

In 1977, Kenneth Olsen, president and founder of Digital Equipment Corp., stated: "There is no reason for any individual to have a computer in their home"

The personal computer runs 400 times faster than the main frames of 30 years ago.

There are 18 million lines of code in Windows 98.

The first all purpose computer ENIAC required so much electricity to process information that the lights in the nearby town dimmed each time it was used.

The fastest computer in the world is the CM-5 "thinking machine" at the Los Alamos National Labratories, USA. It can perform 131 billion operations per second.

In 1963, Douglas Englebart, invented the computer mouse which was later pioneered by Xerox.

When I read this quote I just had to put it in here :-) "If you take a bail of hay and tie it to the tail of a mule and then strike a match and set the bail of hay on fire, and if you then compare the energy expended shortly thereafter by the mule with the energy expended by yourself in striking the match, you will understand the concept of amplification" -William Shockley, co-inventor of the transistor.

Information is exchanged on every man, woman and child an average of 5 times a day in the US.

 

 

 

 

 

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