After 17 Years, It Is Back!

Even more complete, even more compatible, even more powerful!

The Item

The Mégarom T.2 is a MEMO7 cartridge compatible with all the 8-bit Thomson computers, TO family: T9000, TO7, TO7/70, TO8, TO8D, TO9, TO9+.

It provides 2 MB of persistent, rewritable flash memory. These 2 MB are accessed through 128 banks of 16 KB each.

The Mégarom T.2 is 100% backward compatible with the Mégarom T.1 and with all the commercial software distributed in MEMO7 format, including 32 and 64 KB multi-bank software (e.g. Microsoft® BASIC 128).

It can also be used to develop and / or distribute software that requires up to 2 MB of ROM space.

Other hardware features:

The Compilation

The Mégarom T.2 comes with an awesome compilation of various software: utilities, applications and games. Just like the Mégarom T.1, it is compatible with all TOs: it automatically detects the machine on which it is plugged and displays, in a suitable screen resolution, the list of programs compatible with your machine!

TO7, T9000
TO8, TO8D, TO9+

Version 2.1 of the compilation contains:

And among these, MacroAssembler 3.6: the power of Assembler 2.1 with even more features, new assembler directives and most importantly, a dynamic and powerful macro engine!

Also included is Mission: Liftoff, a superb game released in 2018 for the TO8/8D/9+ computers.

The icing on the cake: the Mégarom T.2, loaded with its software compilation, fixes a 42-year-old bug in the ROM of the T9000!

The Documents and the Tools
The Upgrade Procedure
Upgrade Kit

The upgrade to v2.1 is realized using a set of four 3"½ floppy disks (seven on the TO9). Kits for the 5"¼ drives are also available. No external programmer or connection to a PC is required. Please contact us by e-mail if you need the upgrade kit.

The Credits


Special thanks go to:
The Contacts and the Orders

The Mégarom T.2 is available at a price of €35.50 + €10.00 S&H (Europe + UK, tracked parcel). Postage for other countries: please contact us. Payment by Paypal only (do not pay in advance, contact us first).

Printed circuit board with self-adhesive label for a MEMO7 case available at a price of €24.50. Universal MEMO7 case available at a price of €11.00. Update kits available upon request and sent by e-mail (disk images, free of charge) or by post (real floppy disks, €5.00 + S&H).

For any order or additional information, please contact the authors by e-mail: megaroms at

Also, feel free to post any question or comment in the dedicated topic on the discussion forums or System.cfg.