Mainframe (G1)
| The name or term "Mainframe" refers to more than one character or idea. For a list of other meanings, see Mainframe (disambiguation). |
- Mainframe is an Autobot Action Master from the Generation 1 continuity family.

Mainframe is a dork. A computer dork, to be precise. (Both in that he is a computer that is a dork, and a dork about computers.) He'd rather tackle complex mathematical problems than join the inconvenient galactic conflict with the Decepticons. Despite his distaste for combat, he won't shirk his duties when called upon. If anything, he hopes that if he simply must fight, that he'll have the chance to use his considerable brainpower to end things quickly.
Alas, his partner, Push-Button, would rather convert to a piston rifle and blow stuff up than be stuck debugging Mainframe's programs. Naturally, the two don't especially get along.
Fiction
IDW comics continuity
![]() Spoiler warning: Plot details for Chaos Part Three: Kings follow. of the next episode/issue in the series or 30 days after release, whichever is sooner |
Mainframe was one of the survivors of the Kimia Facility massacre. He got away aboard an escape pod piloted by Chromedome and Brainstorm. Chaos Part Three: Kings
Toys
Generation 1

- Mainframe (Action Master, 1990)
- Accessories: "Vibro Pulverizer" rifle, Push-Button partner
- As an Action Master, Mainframe is a non-transforming action figure of a robot with an indeterminate alternate mode, but chances are he turns into one of those huge computers you see in those movies from the 70s and 80s, you know, the ones the size of refrigerators with the reel-to-reel magnetic tape. He is compatible with any Action Master vehicle or weapon. He was part of the second assortment of basic carded figures, and came with his partner-robot Push-Button.
Notes
- Mainframe is inexplicably on the cover of the 1990 Family Home Entertainment VHS release of the "Five Faces of Darkness" mini-series... a cartoon produced about four years before Mainframe's toy was released.
Foreign names
- French: Ordinateur (Canada)
- Italian: Cronos



