What is tiles421.lisp?

The first version of what would evolve into the world-renowned block-based Scratch programming language. Like Scratch, it was developed at MIT in early 1995 (Scratch started development in 2003), and only contained a few blocks and a very limited LOGO code compiler. As a matter of fact, it is so primitive that there is no visible text on blocks placed in the scripting area! This earliest implementation was written by Albert Castillo in Macintosh Common Lisp 2.0 (also available on this website :-]) It was kindly sent to our archiving team by former MIT Media Lab member Andrew Begel, without whom it would have been impossible to fully document the history of visual and block-based programming.

Since this is a Lisp program, all source code and comments are still visible within the file (for anyone interested). From my knowledge, this file has been left intact since this version was finished on April 21, 1995 (although the modification date was reset when it was emailed to our archiving team since it was emailed uncompressed).

If you have any questions, comments, or concerns about this page or any other of my software pages, please PM me, and I will try to get back to you shortly. (I am a relatively new member of MR, so I might not check back often!)

Download tiles421.lisp for Mac

Architecture

Motorola 68K

System Requirements

From Mac OS 7.6

Compatibility notes

I have tested this on MAME, works great on the latest version (as of writing), 0.251. I emulated a color-screen Mac IIci with 64 MB of RAM and MacOS 7.6.1.

One of my friends tested this with QEMU with a similar (if not identical) configuration; worked great there as well.

Note: I built the ISO file using a simple Windows 10 ISO creation tool. Please let me know if this ISO is unloadable on Macs.

Emulating this? It could probably run under: QEMU