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.

The Pod Delusion – A UK Sceptical Podcast

the Pod delusion - logo

My podcast find of the week is The Pod Delusion. Its a topical news magazine podcast with a rational approach to news, politics and science. Its currently on episode 192, so is a mature well produced podcast, in fact aside from its approach to the subject matter, it could be mistaken for a BBC production.

Unlike US sceptical podcasts its not at all pushy; it presents information in a rational manner and leaves you to make up your own mind. Well worth a listen, I’m giving it a few more episodes before I see if it will stay in the feed.

It can be found online at poddelusion.co.uk/blog/ or you can use their RSS podcast feed.

Welcome to my new blog

I’ve called this blog In My Feed after the title of the episode I did for Hacker Public Radio. The ‘In My Feed’ episodes contain highlights and reviews of the stuff I come across in my RSS feed reader and via the podcasts I listen to, along with interesting things I find about tech stuff such as Linux, and some work related IT.

I started preparing for a second episode which entailed me writing up notes for each section of the episode, then I ended up with too much material and ran out of time to produce the podcast.So here is where I’ll be putting all that material.

I’ve previously run separate blogs one for Linux related posts and another for everything else. I had been using Blogger, then for a while I used Posterous and fed the Blogger site from it. When Posterous went away I stopped blogging. I blog faded so to speak.

After suffering from the demise of various free online services (Google Notes, Google Reader, Posterous to mention just some) and the wholesale unpredictable UI changes I’m withdrawing from future use of such services in favour of running my own (more on that in future posts). Therefore this blog is running on WordPress on a hosted virtual server, which so far has been a relatively painless an inexpensive experience.

So next is to set up categories for posts. Eventually I want to tidy up the design (I quite like the look of DanLynch.org), but as long as its reasonably presentable and readable I’ll be adding content …