Heath/Zenith Data Systems BASIC-80, BASIC Compiler and more documentation set. Covers operation under CP/M.Includes documentation for:

• BASIC-80 Software Reference Manual (595-2538-03)
• Microsoft BASIC Compiler User's Manual (595-2852-01)
• Microsoft MACRO-80 Assembler Software Reference Manual (595-2666-03)
• Microsoft LINK-80 Loader Software Reference Manual
• Microsoft LIB-80 Library Manager Software Reference Manual
• Microsoft CREF-80 Cross Reference Facility Software Reference Manual

The binder and pages are all in pretty much excellent condition. The clear vinyl on the outside of the binder cover has some warpage due to age but is otherwise firm and stable.
I do my very best to thoroughly inspect and test the vintage computing items I sell, and to describe them as accurately as possible. What you see in the photos is what you get. These are decades old electronic products with components that tend to degrade over time. Plastics can also become brittle with age. I pack the items I sell very well (please peruse my response to see the praise I have received for my packing). I specialize in vintage computer relics and have shipped literally thousands of items over the past 25+ years. If an item arrives in a physical or cosmetic condition other than what you see in my photos then it will likely be as a result of mishandling by the courier. I always fully insure the items I ship, so in the event an item does arrive damaged in some way, you agree to allow me time to initiate an insurance claim to reimburse you. I strive for 100% satisfaction with my buyers. Please ask any questions you might have before purchasing an item. Please note: I do not accept returns and all sales are final. Thank you.Please check my other listings for more great vintage computing items.
Ships via USPS Media Mail for United States or international buyers pay International Shipping worldwide. Local pick-up welcome.