SYSTEM ONLINE SINCE 1984

Keeping the Tatung Einstein Alive.

Guides, disc images, dev tools and a community dedicated to the TC01, the 1984 home computer with a games console heart and a business machine's soul.
Start HereBrowse the Library
A Tatung Einstein TC-01 with its monitor, switched on and waiting at the MOS prompt
The cover of Relatively Unknown, The Story of the Tatung Einstein

Our book, in progress

Relatively Unknown

We are writing the story of the Tatung Einstein and the people who made it. Read a few passages, see how far it has come, and if you were there, help us fill the gaps.

10 of 16 chapters drafted

See the Book

Also in the works

Four Booklets

E5, Typed In, Ported and First Run: one off booklets about Einstein software, then and now, each a free PDF download. Send in your ports, games and old discs, and help finish them.

See the Booklets
The cover of E5

E5

The cover of Typed In

Typed In

The cover of Ported

Ported

The cover of First Run

First Run

WHAT YOU CAN DO HERE

Everything for the Einstein, in One Place

A game from the library running in the TatungBytes online player

Play in Your Browser

Boot discs from the library on an emulated TC01 or 256, right here on the page. Nothing to install.
Open the Player
The Assembly Lab: Z80 code with its memory addresses beside the Einstein screen running it

Write Z80 Assembly

Type a program, press Run and watch it on an Einstein. Step through it one instruction at a time and see every register change.
Open the Assembly Lab
Title screens of six Einstein games from the Download Library

The Library

Hundreds of disc images, magazines and manuals, ready for a Gotek, an emulator or the online player.
Browse the Library
The cover of the Z80 Assembly for the Tatung Einstein course

Learn to Program It

Structured courses from your first Z80 program to a finished game, plus BASIC, Pascal, C, Forth and Logo.
See the Courses
LATEST NEWS
What's New on the Einstein
Send in the Clones cover art: five clones in red overalls under the Friend Computer
Send in the Clones: A New Text Adventure for the Einstein
L. Boffin's new Einstein adventure puts you in Paranoia's Alpha Complex with eight clones and one garbled mission. Free to download today.
November 6, 2026
The Board-Folk V9938/V9958 adapter board for the Einstein TC-01
A TC-01 That Starts Up as an Einstein 256
Board-Folk's V9938/V9958 adapter and a patched MOS 2.1 turn a TC-01 into a machine that starts up as an Einstein 256, and Lee Bendall has written the whole job up.
November 1, 2026
The rebuilt disc booting in MAME: XtalDOS 2.02 (C) Xtal 1983-86, and its directory listing
The Master Disc Before It Was Finished
A damaged disc from Xtal's founder boots again, and its deleted files turn out to be the Einstein's master disc programs as they stood in April 1984, with a copy of Xtal BASIC 5.00 we have found nowhere else.
October 31, 2026
EXCLUSIVE TO TATUNGBYTES

The Only Structured Tatung Einstein Assembly Course on the Internet

From your first Assembly program to building a full game, nowhere else teaches the TC01 like this, lesson by lesson.
Explore the Course
The cover of the Z80 Assembly for the Tatung Einstein course
HELP PRESERVE THE EINSTEIN

Share Your Disc Images

If you have an Einstein and a box of discs, you can do its preservation a real favour. Every disc holds more than its directory shows, even the ones whose programs we already have. BACKUP them into our blank image and share them with us; no account needed, and every find goes back to the community.
Share Your Discs
XtalDOS BACKUP on an Einstein screen reporting Disc Backed up OK
THE BLAGBROUGH LEGACY

A Family Who Kept a Computer Alive

A heartfelt dedication to John and Betty Blagbrough (B & H Computers), whose tireless efforts kept the Tatung Einstein alive after Tatung discontinued the TC01 and 256 in the late 1980s. Through vision and commitment, they brought companies together to keep business and games software going, proving that family, friends and perseverance carry innovation forward.

Get the Newsletter

New guides, disk images and community finds, roughly once a quarter. No spam, we promise, this isn't Tatung's marketing department.
Your subscription could not be saved. Please try again.
Your subscription has been successful.

Newsletter

Subscribe to our newsletter and stay updated.

This form is protected by reCAPTCHA, and the Google Privacy Policy and Terms of Service apply.

The home of the Tatung Einstein TC01. Guides, disk images, dev tools and a community keeping a legendary 80s computer alive.
EXPLORE
GuidesDownloadsNewsOnline PlayerAssembly Lab
community
DirectoryLinksAbout
get in touch
Contact
© 2026 TatungBytes. All Rights Reserved.