How Data is Encoded and Stored on Floppy Disks

A two part series: In this part i'll take a look at how data is encoded and stored, and read back on a floppy disk. Make some notes, because the next video is all about copy protection! Ever wanted to know how a floppy disk works? Small Note: At (09:00) The Sync Word would actually decode to A9, but its called the "A1 Sync Word" If you decode/encode it you can still see that its not possible to make this sequence - Thanks to Keir Fraiser for pointing this out. If you want to support my channel then consider becoming a Patreon! Patreon: https://www.patreon.com/RobSmithDev Discord: https://discord.gg/MKZ6HA6ZWE Chapters: Welcome (00:00) Introduction and Background (00:12) Physical Storage (00:58) Auto-Gain (02:27) MFM Encoding (03:38) PLL (06:53) Index Signal (07:52) SYNC Mark/Word (08:24) Write Precompensation (09:05) What is DrawBridge? (09:48) Summary (10:23) Music: rotate picture by rush technology by axel of brainstorm (1992) Copyright © RobSmithDev 2021-2022 https://robsmithdev.co.uk Where appropriate, all efforts were made to trace & obtain copyright holders permissions to reproduce their material in this video. If you have any questions regarding content please get in touch. #floppydisk #mfm #encoding #vintagecomputing