Leave security to security code. Or: Stop fixing bugs to make your software secure!

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If you read about operating system security, it seems to be all about how many holes are discovered and how quickly they are fixed. If you look inside an OS vendor, you see lots of code auditing taking place. This assumes all security holes can be found and fixed, and that they can be eliminated more quickly that new ones are added. Stop fixing bugs already, and take security seriously! read more

How many Commodore 64 computers were really sold?

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Nobody doubts that the C64 was the greatest selling single computer model of all time, it even made it into the Guinness Book of World Records, but nobody quite knows how many it really was: Most sources say 17 million, others say 22 or even 30 million. With a high degree of confidence, I can now say that Commodore only sold 12.5 million units – how I would know that, you ask, and how do I dare to contradict well-known facts? By analyzing serial numbers! read more

Commodore Plus/4, C116, C16 (TED) Technical Documents

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The Commodore Plus/4, the C16 and the C116 from 1984 were members of the 6502-based “TED” series, named after the 7360 TED (“Text Editing Device”) video controller. The TED systems were basically the low-cost cousins of the C64: The overall system architecture and the video chip are very similar to the C64’s, but they lack certain features like hardware sprites. On the other hand, there are some added features like extra colors and more control over the internal timing of the video chip. read more

Final Cartridge III Undocumented Functions

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The “Final Cartridge III” has been among the most popular Commodore 64 extensions, providing a floppy speeder, BASIC extensions, a machine language monior, a freezer and even a (rarely used) graphical desktop. The major advantage compared to other C64 cartridges is the consistent way in which the Final Cartridge III extends the C64 experience. read more

Comparing Digital Video Downloads of Interlaced TV Shows

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In the days of CRT monitors, TV shows used to be broadcast in interlaced mode, which is unsupported by modern flat-panel displays. All online streaming services and video stores provide progressive video, so they must deinterlace the data first. This article compares the deinterlacing strategies of Apple iTunes, Netflix, Microsoft Zune, Amazon VoD and Hulu by comparing their respective encodings of a Futurama episode. read more

Xbox Serial Number Statistics

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Slashdot had a story recently on how in 1942, the allies were able to estimate the number of German taks produced based on the serial numbers of the tanks. In 2010, a German hacker is doing the exact same thing with Xboxes. This article describes the generic approach, shows some results, and provides previously unreleased raw data of 14,000 Xbox serials so you can do your own statistics! read more