History of Intel’s Processors

Security Now Podcast – Episode 410 – Interesting Intel History

Intel 80286 Processor

Intel 80286 Processor

This week’s security now episode is particularly interesting, it describes the evolution of the Intel processor family as used in PCs. Steve Gibson explains the key architectural twists and turns that were taken as the processor evolved from 8 bit to 32 bit. Anyone having to deal with software on Intel based machines has most likely stumbled across the terms Real Mode and Protected Mode at some point. This podcast presents a clear description of these modes of operation and some of the practical constraints they impose upon the operation and architecture of the processor family. What makes this particularly interesting is that the context of the explanation itself becomes an explanation of the underlying programming of Steve Gibson’s ‘Spinrite’ disk repair software and some of the upcoming development work that will further improve its operation.


Hacker Public Radio

I could write up a blurb for HPR but its best just to quote from their home page.

Hacker Public Radio Logo

“Hacker Public Radio (HPR) is an Internet Radio show (podcast) that releases shows¬†every weekday Monday through Friday. What differentiates HPR from other podcasts is that the shows are produced by the community – fellow listeners like you!. There is no restrictions on how long the show can be, nor on the topic you can cover as long as they¬†“are of interest to¬†hackers. The only question you need to answer is¬†will my show be of interest to hackers ?

First off this is not about ‘Black hat hacking’, its hacker as in hobbyist, people that make and do stuff. Most likely you may not want to listen to every show from the feed unless you are a compulsive about that kind of thing, however you will find informative and often quite entertaining shows.

I’ve found the HPR community to be open and helpful. Although there’s quite a positive bias in the episodes towards Linux and open source software, thats not the limit to the topics covered, in fact in over 1200 episodes all manner of subjects have been covered.

If you’ve got something you want to podcast but not enough regular content to create your own podcast, a burning issue you want to get off your chest, or if you want to dip your toe into podcasting you will be welcomed into the community to have a go yourself. Although higher quality audio is preferred you can even phone in a podcast to a UK or US phone number.

Go visit HPR at http://hackerpublicradio.org/ and/or add them to you pod-catcher using one of these feeds.