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Hoi, ik ben Iljitsch van Beijnum. Dit zijn al mijn posts die niet werk-gerelateerd zijn.

Using a modern monitor with an Amiga 1200 over VGA

After talking about the complexities involved with connecting older computers to newer displays, I was in the mood for a success story.

This is how I finally figured out how to get a decent looking picture from my Amiga 1200 on a Dell U2312HM monitor using a simple Amiga-to-VGA adapter (or cable).

This is the adapter I'm talking about. It has the Amiga 23-pin video connector on one end and a standard VGA connector at the other end. There's no electronics inside, it really only allows for connecting a VGA cable to the Amiga; it's up to the Amiga to generate a video signal that the monitor will understand.

Lees het artikel - geplaatst 2020-09-16

The evolution of computer display technology

In a previous post, I mentioned that it's hard to connect a Commodore 64 to currently available monitors and TVs. I've also had considerable difficulty hooking up my Amiga 1200 to an LCD monitor and getting a clear picture. Probably more about that in a later post.

So I thought it would be interesting to look at how widely available computers since the late 1970s have sent text and graphics to an external display, and the evolution of those systems.

1980s home computers

Home computers from the 1980s were intended to be used with a TV as their display.

[Rest of the story...]

So as of the second half of the 1990s, all common computer types moved away from TV-based display options towards a common display technology. Then, with the advent of HDTV, TV also made the jump to higher resolutions and digital connections... and now it is again possible to use a TV as a computer display.

Funny how things work out sometimes.

Full article / permalink - posted 2020-09-13

Reviving the C64 (or C128) experience

In this post, I want to look at different ways of running an emulated Commodore 64 (or Commodore 128) and how they compare. The contenders are the THEC64 Mini, a half-size recreation of the C64 powered by an ARM CPU running an emulator, the full-size THEC64 that adds a working keyboard and the VICE emulator running on my MacBook Pro.

Lees het artikel - geplaatst 2020-09-08

→ RecipeConverter

I recently got more interested in cooking, so I started looking for recipes on the internet. Then I found out that in the US, it's customary to list the amounts for many ingredients in teaspoons, tablespoons and cups, in addition to using pounds, pints, quarts and two types of ounces.

So I decided to make this page that will let me (and you) convert between these different measurements and the units the rest of the world understands: milliliters and grams. I wanted to make this easy so you could do it on the go on a phone or a tablet while cooking, hence the sliders rather than having to type in numbers.

This was the first time I used Javascript for a significant amount of functionality, and that was actually relatively easy.

Permalink - posted 2020-09-05

Hommels en zonnebloemen

Image link - posted 2020-08-20

22 miljoen SARS-CoV-2 besmettingen

In de eerste zes maanden van dit jaar zijn er wereldwijd 10 miljoen mensen positief getest voor het SARS-CoV-2 virus. De volgende 10 miljoen duurden zes weken. In Nederland werd op 14 maart de "intelligente lockdown" afgekondigd. Die dag werden 155 mensen positief getest. De afgelopen week waren dat er ruim 600 per dag, vier keer zoveel.

Het slechte nieuws: het virus neemt toe middenin de zomer, wanneer scholen en universiteiten dicht zijn en luchtwegvirussen normaliter nagenoeg niet voorkomen. De overheid kondigt geen nieuwe maatregelen af en handhaaft de bestaande nauwelijks. Iedereen gaat losser met de maatregelen om, sommigen een beetje, anderen veel losser, en sommige mensen negeren de regels totaal. Er zijn zelfs mensen die zich laten testen (en dus een reden hebben om te denken dat ze besmet kunnen zijn) maar daarna naar hun werk gaan voordat ze de uitslag hebben. Van je collega's moet je het hebben.

Grafiek van het aantal SARS-CoV-2 besmettingen per dag in Nederland:

Gelukkig is er ook goed nieuws...

Volledig artikel / permalink - geplaatst 2020-08-17

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