This is the Microsoft Basic Compiler for MS-DOS, along with the Users Guide and Reference Manual. It is a vintage computing item that is perfect for collectors or those who want to relive the nostalgia of the 80s. The brand of this item is Microsoft, and it falls under the category of Computers/Tablets & Networking and Other Vintage Computing.

With this item, you can compile your own programs on your MS-DOS system. The users guide and reference manual will help you get started with the basics and provide you with all the necessary information to create your own unique programs. This is a rare find for any vintage computing enthusiast and is sure to be a great addition to your collection.