{"product_id":"all-about-dos-enhanced-edition","title":"All About DOS: Enhanced Edition","description":"\u003cp\u003eAs a guide to DOS 3.3 for the Apple II, All About DOS contains many useful programs and in-depth topics. This new Enhanced Edition, encompassing over 560 pages, is improved with a new design, art, glossary, and technical appendices.  It includes a wide variety of references and how-toÕs, making it a great reference for Apple II programmers.  Highlights Include:\u003c\/p\u003e\n\n\u003cp\u003eÐ \"How DOS Works\"  Ð  RWTS, Internals, Diskettes.\u003cbr\u003e\nÐ ÒThe Directory\"  Ð  Sectors, Catalog Edit, Wildcards.\u003cbr\u003e\nÐ \"File Handling\"  Ð  Sequential to Random files, EXEC\u003cbr\u003e\nÐ \"Speeding Up DOS\"  Ð  Fast Boot, Loaders for Text, BASIC, Binary.\u003cbr\u003e\nÐ \"Repairing Bugs\"  Ð  Sequential files, Sector display, Stack.\u003cbr\u003e\nÐ \"DOS Modifications\"  Ð  Customizing, Using available holes in DOS.\u003cbr\u003e\nÐ \"'R' Files:  Relocatable Object Code\"  Ð  Create code with the Toolkit assembler.\u003cbr\u003e\nÐ ÒUtilities\"  Ð  Automate DOS patches, Disk Error Checking\u003cbr\u003e\nÐ \"Memory Management\"  Ð  Moving DOS to the Language Card.\u003cbr\u003e\nÐ \"Other Operating Systems\"  Ð  DOS 4.1, Pascal, CP\/M, TRS-80, Atari.\u003c\/p\u003e","brand":"Bill Martens","offers":[{"title":"Paperback","offer_id":44348079603873,"sku":"9780359769049","price":67.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0462\/1120\/3233\/files\/176gg84v-front-shortedge-384_887c4f7c-9dff-4682-8357-287f5d35a67b.jpg?v=1748213821","url":"https:\/\/bookswholesale.myshopify.com\/products\/all-about-dos-enhanced-edition","provider":"BooksWholesale","version":"1.0","type":"link"}