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This system used six separate wires. One was used as a common ground, and the other five each drove a pointer. -
This system allowed someone to press a key to send a message over the telegraph wire. A long press was interpreted as a dash, and a short press was a dot. In an early form of encoding, these dots and dashes were translated into the alphabet. -
The Baud mapped the letters to five parts which were typed using a special five button keyboard. -
The Hush-a-Phone was a device originally invented in the 1920s to allow people to have more private conversations over the phone.
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The Dataphone was the first commercially available modem, moving data over the phone system really fast. -
The Carterfone was a device which allowed you to connect a phone line to a radio. -
ALOHA would ultimately become the standard used to add text messaging to cell phones. -
Ethernet has characteristics including the ability to plug additional computers into the network wherever necessary without difficulty. -
Wi-Fi was invented for cash registers by the NCR which is today worth over four billion dollars. -
the original iPhone was introduced as a combination of the iPod, a mobile phone and an Internet communicator.
