Addition and subtraction
Addition, subtraction, and multiplication
Addition, subtraction, multiplication, and division
Addition and multiplication
Subtraction and multiplication
Multiplication and Division
It worked like a player piano.
Reusable cards with holes held information.
It used gears and wheels for calculation.
Paper rolls with holes held information.
The U.S. Census
The first Jacquard loom in the United States
Ada Lovelace's first program loop
The introduction of electricity to the United States
The stored program technique, an input device, an output device, and memory
Mechanical calculation equipment, human-powered mechanisms, punched cards, and an output device.
An input device, memory, a central processing unit, an output device
An input device, the stored program technique, a central processing unit, and an output device.
The large memory concept
The stored program concept
The discrete variable automation concept
The virtual memory concept
International Business Machines
They were more expensive than tubes but lasted longer and were cooler in temperature.
They didn't last as long as tubes but were less expensive.
They were cheaper and smaller than tubes.
They were cheaper, smaller, and cooler than tubes and lasted longer.
Donuts and integrated circuits
Bear claws and multitasking
Donuts and time-sharing
Donuts and virtual memory
Science and Wall Street Journal
Popular Electronics and Radio Electronics
Popular Electronics and Star Trek Monthly
New Mexico Entrepreneur and Radio Electronics
The computer came in kit form.
The computer's price was $666.
The machine had an open architecture.
The machine could be used without plugging it into a wall outlet.
The education market and the educational game Shape Up.
The games market and the game The Big Race
The business market and the program Lotus 1-2-3
The business market and the program VisiCalc
Lotus and Lotus 1-2-3
Bricklin and VisiCalc
Apple and the Apple Operating System
Microsoft and Word
Control Data Corporation OS
Sega Games operating system
Linux operating system
Mac OS X
World War II
The McCarthy hearings of the 1950s
The launch of Sputnik
The inability of computers to communicate with one another
Parallel computing, networking, and the multiple-data-stream approach
The graphical user interface, networking, and computer-aided software engineering (CASE) tools
Networking, the graphical user interface, and packet switching
ARPANET, the Internet, and CASE tools