Historically Forth was block orientated (1024 bytes) https://www.forth.com/starting-forth/3-forth-editor-blocks-buffer/ https://www.forth.com/starting-forth/3-

Historically Forth was block orientated (1024 bytes) https://www.forth.com/starting-forth/3-forth-editor-blocks-buffer/ https://www.forth.com/starting-forth/3-forth-editor-blocks-b... When I implemented this in a home rolled Forth on the Apple //e under Prodos (mid eighties) I used the Apple sparse file with random IO as block orientated drive. The Starting Forth link suggests that's a common mechanism. I suspect a lot of micro Forths just hit the disk directly.