- Interstate 57 (I-57) is a north–south Interstate Highway that exists in two segments. It runs through Arkansas, Missouri, and Illinois. I-57 parallels the old Illinois Central Railroad for much of its route east of I-55. The Interstate begins at I-40 in North Little Rock, Arkansas, traveling northward concurrently with U.S. Highway 67 (US 67) until it reaches Walnut Ridge, Arkansas, where the Interstate ends as of 2024. I-57 will run northward to meet up with the existing segment in southeastern Missouri. I-57 resumes its run from Sikeston, Missouri, at I-55 to Chicago, Illinois, at I-94. I-57 essentially serves as a shortcut route for travelers headed between the Southern United States (Memphis, New Orleans, etc.) and Chicago, bypassing St. Louis, Missouri and Springfield, Illinois.
- Mallard BASIC (Wikipedia)
Mallard BASIC is a BASIC interpreter for CP/M produced by Locomotive Software. It was supplied with the Amstrad PCW range of small business computers, the ZX Spectrum +3 version of CP/M Plus, and the Acorn BBC Micro’s Zilog Z80 second processor.