Breaking the DOS 640k barrier on 8086 and 80286 systems скачать в хорошем качестве

Breaking the DOS 640k barrier on 8086 and 80286 systems

Most people who grew up with MS-DOS on 16-bit 8086 and 80286 CPUs learned about the 640K limit and accepted it -- but you may be surprised to know that 640K isn't the actual limit. In this video, I explain why the 640K limit is a myth, and how you can break past it using a variety of methods that don't require EMM386 or an 80386 CPU. Chapters: 00:00 Intro 00:51 Benefits 01:43 The IBM PC Memory Map 02:48 The orthodox procedure 04:09 What are Upper Memory Blocks? 04:53 Orthodox procedure continued 06:46 An Unorthodox procedure 09:34 Q&A 11:31 DOScember Hardware and software mentioned in this video: Lo-tech 1MB RAM card: https://texelec.com/product/lo-tech-1... PCjr jrIDE sidecar: https://texelec.com/product/jr-ide-fo... All the software mentioned in this video is available via anonymous FTP: http://ftp.oldskool.org/pub/youtube/d... ========== This video was a part of #DOScember ! Here's the #doscember official playlist: https://bit.ly/DOScember2020 Also check out these other #doscember participating Channels: Adrian's Digital Basement:    / adriansdigitalbasement   ctrl-alt-rees:    / ctrlaltrees   DaveJustDave:    / mrdavejustdave   Jan Beta:    / janbeta   Josh Malone:    / joshmalone_48kram   LGR:    / lazygamereviews   MindFlareRetro:    / mindflareretro   Mr Lurch's Things:    / mrlurchsthings   Noel's Retro Lab:    / noelsretrolab   RetroSpector78:    / retrospector78   RMC:    / rmcretro   RoseTintedSpectrum:    / rosetintedspectrum   Tech Tangents:    / akbkuku   The 8-Bit Guy:    / adric22   TheRetroChannel:    / theretrochannel   ========== Thanks to winworldpc for supplying some software, and to Mike Brutman for boot sector patch ideas. Want to support me, and help me make more videos like this? Consider becoming a patron:   / theoldskoolpc   Some incidental music by coda, used with permission: https://coda.s3m.us/ Contact info: Twitter: @MobyGamer Email: http://www.oldskool.org/personal