Born in Phoenix, Arizona, Mainframe's real name is Blaine L. Parker, and his rank is sergeant E-5.

He soon headed into battle overseas, receiving his Combat Infantryman Badge, and later left the army to get his degree from MIT on the G.I.

Mainframe then did a stint developing computer software in Silicon Valley, making big bucks and fighting boredom with a stick.

The boxed set also included Claymore, and re-colored versions of Dial Tone, Leatherneck, and Wet Suit.

In that issue, Mainframe and Dusty are sent on a mission into a Middle Eastern nation torn apart by the war between the Royalist rebels and the forces of dictator Colonel Sharif.

In exchange for helping them ambush one of Sharif's weapons convoys, the Royalists give the Joes a guide to lead them through the desert, a local teen named Rashid.

[7] Some time later, Mainframe works on the USS Flagg as part of Hawk's operations team during the Joes' involvement in the Cobra civil war.

[13] He works closely with Lifeline to neutralize the threat of microscopic nanites which are causing various forms of deadly havoc.

[16] Mainframe's name is part of memorial in Arlington dedicated to all Joes who have lost their lives in the line of duty.

[17] Mainframe's protégé, Firewall later aids his teammates in finishing an old mission involving the drug dealer Headman.

However, it doesn't go quite as planned, with the after-effects of the life saving computer hacks accidentally incinerating his Joe teammate Mercer.

[19] Mainframe is the Joe soldier who discovers that Cobra exists as an organization in the first place; his theories that they are a group willing to profit in the long term pans out.

At one point, he leads operations in Europe defending the life of an injured diplomat, shot in an Cobra attack.

[21] Mainframe is later called in to assist in tracking down Destro's possible involvement in a fatal conflict in Rio de Janeiro.

", Mainframe and his teammate Beach Head take shelter in the actual coffin of Vlad Tepes from his crumbling castle.

[24] Mainframe was also apparently married with children at one point; while driving through Transylvania, he remarks that the country reminds him of when he would take his kids trick or treating.

[27] In "Grey Hairs and Growing Pains", Mainframe is one of the Joes investigating Cobra's theft of a special youth formula.

He and Dial-Tone interview football star Brett Tinker regarding his commercial for an "ageless care process", only to be assaulted in response.

For further investigation, the Joes visit a Cobra-owned Ageless Care Spa, where they are led to the "steam and sun rooms".

He reprograms the factory's prototype sun and steam rooms, restoring the Joes to their normal ages, and bluffs the Cobras into retreat.

[32] Mainframe appears as a non-playable supporting character named "Data Frame" in the 2009 video game G.I.

As he imagined the characters in his head, he described three of the Joes hanging back from the front lines: Lifeline, Mainframe, and Iceberg.