The CBM DOS can write “relative data” onto disk, based on individual records. The advantage is that all space is allocated once and then randomly accessed if and when it’s needed –...
Learn MoreSequential files are files to which we can write arbitrary data and read it back later. We can even append data to the file later without having to re-write the whole file. This works with the Datasette (tape...
Learn MoreThe Commodore 1571 floppy drive powers up in compatibility mode and behaves just like a 1541 drive – unless a C128 is connected and sends it a fast serial transfer. They did this because otherwise the...
Learn MoreSometimes you may want to know how fast your fans are spinning, more as a “number value” rather than a “noise value”. While you can hear when your Mac in front of you is working hard,...
Learn MoreSystem Integrity Protection was introduced in El Capitan to add another layer of security to OS X. The system prevents the root user from doing things that are potentially harmful. Apple did this because any...
Learn MoreThe marvellous P2 Theme has an interesting feature: write out a plain link, and it magically becomes clickable without explicitly adding the a href tag. This may not be a big deal if you’re writing...
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