HP 9915A

The HP-9915A was the embedded version of the HP-85. When Hewlett-Packard released the HP-85B, the HP-9915B was also released. The HP-9915A is binary compatible with the HP-85 and all its peripherals.

This page will be expanded to include additional information about the HP-9915.

• HP-9915A Promotional Brochure

• HP-9915 Installation Manual

• HP-9915 System Development Manual. The HP-9915 contains a special ROM that allows access to the features special to the HP-9915 (e.g. the LEDs and buttons on the front panel, etc.). Unfortunately, I only have the first few pages of this manual (essentially the table of contents) which provides tantalizing hints on the facilities available, but no real info.

  **UPDATE** This manual may be found in the HP Computer Museum site, http://hpmuseum.net/document.php?hwfile=853.

• A New Concept: HP9915A Modular Computer, Keyboard Magazine, Jan/Feb 1981, page 12.

• HP-9915A Schematics (reversed engineered by Tony Duell).

• Pin-outs for the keyboard and control connectors on the Operator Interface adapter card.

• Blinkenlichts Demo, an HP9915B is used to control a display of decorative lights.

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