History of video games

The history of video games goes as far back as the 1940s, when in 1947 Thomas T. Goldsmith, Jr. and Estle Ray Mann filed a United States patent request for an invention they described as a "cathode ray tube amusement device." Video gaming would not reach mainstream popularity until the 1970s and 80s, when arcade video games, gaming consoles and home computer games were introduced to the general public. Since then, video gaming has become a popular form of entertainment and a part of modern culture in the developed world. There are currently considered to be eight generations of video game consoles, with the sixth seventh and the eighth concurrently ongoing.

Early history

Main article: First video game

On January 25, 1947, Thomas T. Goldsmith, Jr. and Estle Ray Mann filed a United States patent request for an invention they described as a "cathode ray tube amusement device". This patent, which the United States Patent Office issued on December 14, 1948, details a machine in which a person uses knobs and buttons to manipulate a cathode ray tube beam to simulate firing at "air-borne" targets. A printed overlay on the CRT screen helps to define the playing field.

In 1949–1950, Charley Adama created a "Bouncing Ball" program for MIT's Whirlwind computer.While the program was not yet interactive, it was a precursor to games soon to come.
In February 1951, Christopher Strachey tried to run a draughts program he had written for the NPL Pilot ACE. The program exceeded the memory capacity of the machine and Strachey recoded his program for a machine at Manchester with a larger memory capacity by October.
Also in 1951, while developing television technologies for New York based electronics company Loral, inventor Ralph Baer came up with the idea of using the lights and patterns he used in his work as more than just calibration equipment. He realized that by giving an audience the ability to manipulate what was projected on their television sets, their role changed from passive observing to interactive manipulation. When he took this idea to his supervisor, it was quickly squashed because the company was already behind schedule.
OXO, a graphical version of tic-tac-toe, was created by A.S. Douglas in 1952 at the University of Cambridge, in order to demonstrate his thesis on human-computer interaction. It was developed on the EDSAC computer, which uses a cathode ray tube as a visual display to display memory contents. The player competes against the computer.
In 1958 William Higinbotham created a game using an oscilloscope and analog computer. Titled Tennis for Two, it was used to entertain visitors of the Brookhaven National Laboratory in New York. Tennis for Two showed a simplified tennis court from the side, featuring a gravity-controlled ball that needed to be played over the "net," unlike its successor—Pong. The game was played with two box-shaped controllers, both equipped with a knob for trajectory and a button for hitting the ball. Tennis for Two was exhibited for two seasons before it was dismantled in 1959.

Early 1950s–1969

Spacewar! is credited as the first widely available and influential computer game.

The majority of early computer games ran on universities' mainframe computers in the United States and were developed by individuals as a hobby. The limited accessibility of early computer hardware meant that these games were small in number and forgotten by posterity.^{[citation needed]}
In 1959–1961, a collection of interactive graphical programs were created on the TX-0 machine at MIT:

• Mouse in the Maze: allowed players to place maze walls, bits of cheese, and, in some versions, martinis using a light pen. One could then release the mouse and watch it traverse the maze to find the goodies.
• HAX: By adjusting two switches on the console, various graphical displays and sounds could be made.
• Tic-Tac-Toe: Using the light pen, the user could play a simple game of tic-tac-toe against the computer.

In 1961, a group of students at MIT, including Steve Russell, programmed a game titled Spacewar! on the DEC PDP-1, a new computer at the time. The game pitted two human players against each other, each controlling a spacecraft capable of firing missiles, while a star in the center of the screen created a large hazard for the crafts. The game was eventually distributed with new DEC computers and traded throughout the then-primitive Internet. Spacewar! is credited as the first influential computer game.
In 1966, Ralph Baer engaged co-worker Bill Harrison in the project, where they both worked at military electronics contractor Sanders Associates in Nashua, NH. They created a simple video game named Chase, the first to display on a standard television set. With the assistance of Baer, Bill Harrison created the light gun. Baer and Harrison were joined by Bill Rusch in 1967, an MIT graduate (MSEE) who was subsequently awarded several patents for the TV gaming apparatus. Development continued, and in 1968 a prototype was completed that could run several different games such as table tennis and target shooting. After months of secretive labouring between official projects, the team was able to bring an example with true promise to Sanders' R & D department. By 1969, Sanders was showing off the world’s first home video game console to manufacturers.
In 1969, AT&T computer programmer Ken Thompson wrote a video game called Space Travel for the Multics operating system. This game simulated various bodies of the solar system and their movements and the player could attempt to land a spacecraft on them. AT&T pulled out of the MULTICS project, and Thompson ported the game to Fortran code running on the GECOS operating system of the General Electric GE 635 mainframe computer. Runs on this system cost about $75 per hour, and Thompson looked for a smaller, less expensive computer to use. He found an underused PDP-7, and he and Dennis Ritchie started porting the game to PDP-7 assembly language. In the process of learning to develop software for the machine, the development process of the Unix operating system began, and Space Travel has been called the first UNIX application.^[10]
                                                

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