I have a physical copy of this book/binder. A friend of mine was looking for it but there was no scan of it available online, so I decided to scan it and upload it. Even though the scanner was automatic and the positioning of the text and images may be a bit crooked, it is still serviceable in my opinion. OCR has been applied :
http://www.mediafire.com/file/sl6zeq0fk ... e.pdf/file
IBM PCjr. BASIC Hardware Reference Manual Scan
Re: IBM PCjr. BASIC Hardware Reference Manual Scan
Wow, thanks! This was my "bible" as a kid learning how to code in BASIC. 