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Pascaline
Blaise Pascal invents the pascaline, it could only add numbers. -
Stepped Reckoner
The stepped reckoner, invented by Gottfried Wilhelm, could add,subtract, multiply, divide, and find square roots. It often malfunctioned because of unreliable parts. -
Difference Engine
In 1822 Charles Babbage invented the difference engine, it was supposed to calculate numbers to the 20th place. It was made to produce tables of numbers that would be used to navigate. The difference engine was never built. -
Analytical Engine
The Analytical Engine followed programs on punched cards and made decisions based on programs, it was never built. -
Tabulating Machine
Herman Hollerith created the tabulating machine that stored information on punched cards. -
ABC
ABC stands for Atanasoff-Berry Computer, it was the first electronic computer. It used the binary number system that is still used today. -
Hewlett Packard
Hewlett Packard's first product is the 200 A Audio Oscillator. Walt Disney pictures used them to test sound equipment when filming. -
ENIAC
The ENIAC was used to calculate the trajectory of WWII shells, but was finished after the war. It was 1500 sq ft. and 30 tons. -
Mark l
The Mark l used punched cards and was considered a calculator, because it could not make decisions. The Mark l weighed 5 tons and was 51 feet long. -
Transistor
A transistor is a semiconductor device that could replace a vacuum tube.Transistors made computers smaller, less expensive,
and more reliable than those with vacuum tubes -
Machine Language
Machine Language used 0’s & 1’s and is the only language that a computer understands. -
Computer Printer
The first computer printer was made by Remington Rand, although the first mechanical printer was made by Chester Carlson in 1938. -
Bill Gates
Bill Gates founded Microsoft in 1977. -
Digital Equipment Corporation
DEC is founded to produce electronic modules for testing. -
Mainframe
A mainframe is a large computer system that supports multi-user
applications. Large corporations, banks, government agencies, and universities used mainframes -
3rd Generation Computers
3rd generation computers used Integrated Circuits, they replaced transistors. They were silicon etched with intricate circuits. -
Naval Tactical Data System
The US Navy Tactical Data System uses computers to integrate and display shipboard radar, sonar and communications data. -
Fourth Generation Computer
Fourth generation computers used microprocessors, which was an entire CPU on a chip. -
Altair
The Altair was the first microcomputer. -
Desktop PC
The PC accepted data from input devices. The PC became much more versatile when input and output devices were added. -
Apple
Steve Jobs and Steve Wozniak built the first apple computer in their garage. -
Mobile Computer
The first mobile computer, Osborne, was made not by Apple or IBM, but by a man named Adam Osborne. -
Internet
The Internet is numerous networks all linked together through
routers. A router is a device that can connect different communication technologies together. -
Bluetooth
Bluetooth was invented by a telecom vendor called Ericsson in 1994. Bluetooth is used to exchange data over short distances. -
iPhone
The first smartphone designed by Apple is released. It is 4.5" by 2.5" -
Apple Watch
The apple watch incorporated versions of its IOS system. The watch communicates the the iPhone through Bluetooth.
