ISAAC is a fictional character in the Marvel Universe

Marvel Universe

The Marvel Universe is the shared fictional universe where most comic book titles and other media published by Marvel Entertainment take place, including those featuring Marvel's most familiar characters, such as Spider-Man, the Hulk, the X-Men, and the Avengers.The Marvel Universe is further...

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ISAAC is an English version of an acronym in the language of the Eternals of Titan

Titan (Marvel Comics)

In the Marvel Universe, Saturn's moon Titan is the fictional home of the Titanian Eternals. It first appeared in Iron Man #55 and was created by Jim Starlin and Mike Friedrich...

 standing for: Integral Synaptic Anti-/Anionic Computer.

Fictional character biography

ISAAC is a complex computer system which fills almost the entire interior of Saturn's moon, Titan. ISAAC controls Titan's artificial biosphere environment and all mechanical operations on Titan.

ISAAC observed a conflict between Mar-Vell

Mar-Vell

Captain Marvel is a fictional character owned by Marvel Comics. The character was created by writer-editor Stan Lee and designed by artist Gene Colan and first appeared in Marvel Super-Heroes #12 Captain Marvel (Mar-Vell) is a fictional character owned by Marvel Comics. The character was created...

, the Avengers

Avengers (comics)

The Avengers is a fictional team of superheroes, appearing in magazines published by Marvel Comics. The team made its debut in The Avengers #1 The Avengers is a fictional team of superheroes, appearing in magazines published by Marvel Comics. The team made its debut in The Avengers #1 The Avengers...

, and Thanos

Thanos

Thanos is a fictional character that appears in comic books and other media published by Marvel Comics. The character first appeared in Iron Man #55 and was created by writer-artist Jim Starlin....

. Thanos

Thanos

Thanos is a fictional character that appears in comic books and other media published by Marvel Comics. The character first appeared in Iron Man #55 and was created by writer-artist Jim Starlin....

 later reprogrammed ISAAC with a virus prior to his death, to menace the Eternals of Titan. The computer enslaved the Titanian Eternals. ISAAC dispatched Stellarax and Lord Gaea, and then Elysius

Elysius

Elysius is a fictional character in the Marvel Universe.Elysius is an artificially created being possessing the attributes of an Eternal. She became the lover of Mar-Vell, and after his death used his genetic material to impregnate herself with Genis-Vell and Phyla-Vell.-Fictional character...

, and finally Chaos against Mar-Vell and Drax

Drax the Destroyer

Drax the Destroyer is a fictional character appearing in books published by the Marvel Comics.-Publication history:Drax first appeared in Iron Man #55 , and was created by Mike Friedrich and Jim Starlin. He had a recurring role in Captain Marvel vol 1 beginning with issue #23...

. Eros, Mentor

A'lars

Mentor is a fictional character in the Marvel Comics universe, who first appeared in Iron Man vol. 1 #55, and was created by Jim Starlin.Mentor is the leader of the Titanian colony. His back-story was based on Greek mythology...

, and Elyuis eliminated the virus in ISAAC's system, and Mar-Vell defeated Stellarax. The computer was then restored to its original benevolent programming.

Some time later, ISAAC took on an android form, and allied itself with Stellarax, Chaos, and Lord Gaea, in a renewed attempt to carry out Thanos's will. ISAAC then went mad when Mar-Vell forced it to experience the totality of life. ISAAC gave up its android form, and its minions were defeated.

ISAAC confers with Mentor when Drax and Quasar arrive on Titan to consult him, and questions Mentor as he apparently murders them.

Powers and abilities

ISAAC is a vast supercomputer which honeycombs the moon of Titan. ISAAC has a vast range of computational functions, most of which have not been catalogued. Its power source is the thermal energy found at Titan

Titan (Marvel Comics)

In the Marvel Universe, Saturn's moon Titan is the fictional home of the Titanian Eternals. It first appeared in Iron Man #55 and was created by Jim Starlin and Mike Friedrich...

's core. ISAAC is stationary; however, it has been observed to project its holographic representation as far as Earth. This holographic projection takes the form of a humanoid figure in order to facilitate communications with and observation of humanoid life forms.

ISAAC has the ability to take an android form, Isaac-Prime, which has superhuman strength, stamina, durability, and reflexes.