Tree Systems of Grand Rapids
3645 28th St, Grand Rapids, MI 49608
Bob Alsum, owner.
Products
| Name | Description | Computers |
|---|---|---|
| Pluri-Forth | Pluri-Forth is both an operating system and a programming language, replacing the Sinclair ROM entirely. FORTH programs were compiled and ran about 10 times faster than interpreter BASIC. Pluri-Forth offered multitasking, a feature not available in Basic. When used with the Sinclair ROM, the channel 2/3 switch is wired to the Pluri-Forth board to select | Timex/Sinclair 1000, Downloadable |
| Word Tree | Word processor written in Forth, for use with Pluri-Forth. | Timex/Sinclair 1000 |
Documents
| Title | Description | Computers |
|---|---|---|
| Tree-Forth manual | Operating manual for the Tree-Forth, covering installation, operation, and programming. | |
| Tree-Forth manual | Timex/Sinclair 1000 |
Downloads
| Name | Description | Computers |
|---|---|---|
| Pluri-Forth | Pluri-Forth is both an operating system and a programming language, replacing the Sinclair ROM entirely. FORTH programs were compiled and ran about 10 times faster than interpreter BASIC. | Timex/Sinclair 1000 |
Articles
| Title | Description | Computers |
|---|---|---|
| Forth | Do any of the following software “dilemmas” seem familiar? Jerry wants to write games programs which perform faster than his Basic versions, but he cannot quite get the hang of calling and using extensive machine code subroutines. He has heard, however, that he can get a tape-loading compiler-based high-level programming language which runs extremely rapidly… | Timex/Sinclair 1000 |
| Hardware Review: MultiForth EPROM Chip | FORTH is a high-level computer language developed by Charles H. Moore in the last sixties. It was interpretive in the beginning but compiler versions are currently available among which is listed the one we are reviewing now. The basic unit in FORTH is the word, the language is usually provided with a certain number of | Timex/Sinclair 1000 |
| The Forth Corner | Introduction to Forth and review of Pluri-Forth from Tree Systems. | Timex/Sinclair 1000 |
| The Forth Corner | Timex/Sinclair 1000 | |
| TreeForth | Source code for TreeFORTH (a ROMable, TS1000, slightly non-standard FORTH) has been released for non-commercial use by author Bob Alsum. |