{"product_id":"apple-pascal-operating-manual","title":"Sealed Vintage 1980 Apple II Pascal Operating System Reference Manual","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,0,0\"\u003e\u003cb data-path-to-node=\"2,0,0\" data-index-in-node=\"0\"\u003eDescription:\u003c\/b\u003e An original, factory-sealed technical reference manual for the Apple Pascal Operating System. This foundational document covers the UCSD Pascal implementation for the Apple II and Apple III, including the Filer (disk management), Text Editor, Pascal Compiler, and 6502 Assembler. It details the revolutionary \"P-Machine\" architecture and the 512-byte block disk format that preceded ProDOS.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,1,0\"\u003e\u003cb data-path-to-node=\"2,1,0\" data-index-in-node=\"0\"\u003eManufacturer:\u003c\/b\u003e Apple Computer Inc. (Cupertino, California)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,2,0\"\u003e\u003cb data-path-to-node=\"2,2,0\" data-index-in-node=\"0\"\u003eManufactured In:\u003c\/b\u003e USA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,3,0\"\u003e\u003cb data-path-to-node=\"2,3,0\" data-index-in-node=\"0\"\u003eCondition Description:\u003c\/b\u003e \u003cb data-path-to-node=\"2,3,0\" data-index-in-node=\"23\"\u003eNew Old Stock (NOS).\u003c\/b\u003e The manual remains in its original factory clear plastic shrink-wrap. The plastic has a small opening at the top, but the manual itself has never been removed. The binding is uncracked, and the internal pages are pristine, having been protected from light and handling since 1980.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,4,0\"\u003e\u003cb data-path-to-node=\"2,4,0\" data-index-in-node=\"0\"\u003eTrue Condition:\u003c\/b\u003e See pictures for true condition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,5,0\"\u003e\u003cb data-path-to-node=\"2,5,0\" data-index-in-node=\"0\"\u003eModel Number:\u003c\/b\u003e Product #A2L0028 (030-0100-00)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,6,0\"\u003e\u003cb data-path-to-node=\"2,6,0\" data-index-in-node=\"0\"\u003eExtra Notes:\u003c\/b\u003e Apple Pascal was a professional-grade system used by developers to write complex software that DOS 3.3 couldn't handle. A near-sealed copy like this is a \"museum-grade\" artifact, highly sought after by collectors looking for the best possible surviving example of early Apple II documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Thunder Bay Estate Sales","offers":[{"title":"Default Title","offer_id":45348797677759,"sku":"20c","price":69.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8639\/9423\/files\/20c-1.jpg?v=1773933872","url":"https:\/\/www.tbayes.ca\/products\/apple-pascal-operating-manual","provider":"Thunder Bay Estate Sales","version":"1.0","type":"link"}