The Domesday Project

It’s been nearly 2 years since I last did any blogging – this has been largely due to a lack of time.
However, I’ve missed it and decided to get back into it.
So, I’ll begin with The Domesday Project:

This was begun between 1984 and 1986 to celebrate the 900th anniversary of the Domesday Book which for those not familiar was a book commissioned in 1086 by the then King of England, William I (More commonly known as William the Conqueror) in order to determine what land and property existed in the United Kingdom and who owned it. This was for the purposes of tax collection, but also served a useful piece of information from a social history perspective. While it is not fully clear how long the collection process took it is suggested that it took the best part of a year to collate this information into the book.
To celebrate the 900th anniversary the BBC asked schools across the country to create their own version and a snapshot in time named The Domesday Project. Being done by children and teachers they gave themselves 2 years to record the information. Created in association with Acorn Computers, all the data was entered electronically onto a purpose built computer system. Cutting edge for its time it was able to collect text, photos and videos but also would become the google street view of its time.
It’s biggest flaw was it was too cutting edge and the times weren’t ready for the technology.
The data was catalogued on a new storage medium – Laser Disc. Using a scsi controller, the player could be attached to a BBC Master Computer and when combined with a tracker ball (precursor to the modern trackball or trackpad). All in it cost the best part of £5000 which at the time was the price of a small family car. Therefore, sales were low and the project went into obscurity.

This week, The project hit the news as word came through that a part of the BBC had, 25 years on, managed to convert the data into a format that would be accessible to all for free on the web. The concern had come that not enough of the laser disc players existed and that the discs themselves had become corrupted because of a flaw in their design.
Several previous attempts had been made – firstly using emulation of the original BBC Master software on windows PC’s, then a version which did not require the emulation as the software had been re-written for windows PC’s. But finally, the ultimate which does not require any software be installed on the end user’s computer other than a web browser. The domesday1986 blog documents this while the Beebmaster Website shows the technology used to create/play the original discs.

The link for the successfully restored data can be found here:
Domesday reloaded

The Real Millennium Bug

On one of my many trips around wikipedia I stumbled across a date that has been called the real millennium bug.
Contrary to belief, the computers which run the most important systems including most webservers and database systems run on a variant of Unix/Linux or Unix-like aka *Nix.

All these operating systems operate a time keeping mechanism that starts from 1st January 1970
The measure of this time keeping is that it counts in seconds from this.
Most versions installed are 32bit Operating Systems which means that the largest number in seconds that can be represented would occur at 03:14:07 UTC on Tuesday, 19 January 2038
This is the Year 2038 problem (or Y2K38 bug) and the result is that all these computers unless upgraded to a 64bit OS (or other patches applied) will have their calendar reset to 1st January 00:00 at 03:14:08 on 19th Jan 2038. 64 bit OS’s will last well into the future – 290 billion years. A less radical solution of assigning the size of the time character to unsigned 32 bits would extend the problem till the year 2106 but could cause other problems. Other suggestions are to reset the date that is counted from from 1970 to 2000 which would extend the problem by 30 years.

I’m sure a solution will be found, but given that these operating systems are not found as often in home computers (with the exception of linux and Mac OSX operating systems) it has not become as well known but am sure that it will hit the press at some point in the future.

Frankenstein Mac

My Powermac G4 Case Mod from 2003
I was talking to MacHeadCase yesterday about future computers, and we were comparing what each of us had. It was then that I realised that I’d never talked about my Mac on this website and/or blog. So I got my digital camera out, a Sony T-1 and built a little page about my Mac and what i did to the case.
It’s a bit of a mishmash of a computer now – many of the components have been upgraded, and being the first tower case computer i’ve owned, am reluctant to give it up, and want to upgrade it as much as possible.
It’s quite old though now – bought it in August 2000 as a 1st generation Powermac G4, with a 450MHz processor, Zip Drive, DVD ROM, 20Gb Hard Drive and 128mb RAM.
It now has a 2nd hard drive: 120Gb Maxtor, a DVD±RW in addition to the DVD ROM, 640Mb RAM, and no Zip Drive. I’ve added an extra 4 USB ports, and a wireless network card. The original ATI rage Pro graphics card was replaced 4 years ago for a NVidia GeForce 2MX, but that is now due for replacement – i think a Radeon of some description will be the best.
At some point i will want to replace this mac, possibly with a Powermac G5, but they are expensive, and don’t have dual optical drives which drives me nuts. Perhaps I’ll go for a cheaper 2002 edition of the Power Mac G4 Desktops or as I’ve threatened for many years buy a Windows Computer because it’s cheaper and easier to upgrade.