Category Archives: Computing History

NitrOS-9 System Calls

I have been mucking about with NitrOS-9, the current version of OS-9, rebuilt for the 6309 CPU. I became curious about the system calls it used, and specifically how often those system calls get called. I ran a shell script … Continue reading

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Tandy Coco Christmas

Anyone who knows me, knows that I loves me some Tandy Color Computer. For 10 years, that machine was my hacking hardware of choice and did good by me. Here is it singing carols… happy holidays! Related Posts:No Related Posts

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Recursive Descent Parsing

Early in the development of computers, programming languages were simple, and were converted into a machine usable form using a parse tree. Let me give you a little context. Related Posts:TestNG ConfusionBash Hints: Redirecting StdErr to StdOut“Microsoft Small BASIC” is … Continue reading

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Kraftwerk: We are the Robots

Kraftwerk will always have a special place in my heart. My youngest son wanted robots and music, so I introduced him to this classic standard. Related Posts:Kraftwerk: Radioactivity

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Commodore SID examples #1

There are quite a few songs that were played on the C64 SID chip that I really liked. For instance, I was a huge fan of Forbidden Forest, particularly around the 20 second mark: Or the fantastic (for the time) … Continue reading

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Early Computer Audio

Audio used to be easy. I remember programming the 6-bit DAC on the Tandy Color Computer in 6809 Assembler, and thinking… there’s nothing to this. I then learned to program the Commodore SID chip. It introduced me to concepts like … Continue reading

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Copyright needs fixing!

ArsTechnica has an article describing how current copyright laws are affecting the ability of libraries to keep copies of works. Many of the media we use are slowly being replaced by new and different media but the material is not … Continue reading

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The Saddest Photo I Have Ever Taken

Somewhere in a campus basement, an ancient Amiga monitor reflects on its amazing past as it slowly decays… it is the saddest photo I have ever taken. Related Posts:No Related Posts

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Chicklets!

My computing career started out with a fantastic 8-bit micro, the Radio Shack Tandy Color Computer I. It totally ruled, and I learned all of the fundamentals of computing from it. It had a Motorola 6809 CPU and 16K of … Continue reading

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