what is the history behind the second mentioned invention?
Douglas used the EDSAC to simulate a game of noughts and crosses, and display the state of the game on the screen.
OXO
As a part of a thesis on human-computer interaction, Sandy Douglas, a doctoral candidate in mathematics at the university, used one of these screens to portray other information to the user; he chose to do so via displaying the current state of a game.

Douglas used the EDSAC to simulate a game of noughts and crosses, and display the state of the game on the screen. Like other early video games, after serving Douglas's purpose, the game was discarded. Douglas did not give the game a name beyond "noughts and crosses"; the name "OXO" first appeared as the name of the simulation file created by computer historian Martin Campbell-Kelly while creating a simulation of the EDSAC several decades later. 
what is capcom five? Five video games unveiled by Capcom. where did the mentioned type of game originate? From inventions like - NIMROD, OXO, Tennis for Two, and Spacewar!. what is the legend regarding the first one? In Hebrew and Christian tradition, Nimrod is considered the leader of those who built the Tower of Babel in the land of Shinar. what is its historical interpretations? Historians have long tried to find links between Nimrod and real historically attested figures in Mesopotamia.
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OXO [SEP] History
The Electronic Delay Storage Automatic Calculator (EDSAC) mainframe computer was built in the University of Cambridge's Mathematical Laboratory between 1946 and 6 May 1949, when it ran its first program, and remained in use until 11 July 1958. The EDSAC was one of the first stored-program computers, with memory that could be read from or written to, and filled an entire room; it included three 35×16 dot matrix cathode ray tubes (CRTs) to graphically display the state of the computer's memory. As a part of a thesis on human-computer interaction, Sandy Douglas, a doctoral candidate in mathematics at the university, used one of these screens to portray other information to the user; he chose to do so via displaying the current state of a game.