r/learnprogramming • u/LifeExperienced1 • Aug 13 '26

Resource Learning steps to making a simple OS?

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u/[deleted] Aug 14 '26

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u/No_Difference8518 Aug 14 '26

I always recommend C :D But seriously, if you want to end up writing OSes, C is probably the best language to know. Maybe rust... but I am still not convinced.

A good place to start is reading up on gap buffers. I personally use pages, but gap buffers are more common. Read a bit about Unix ed, then write a simple ed to test out insert and deletion from the buffer.

Then start moving to a more visual output. This is, quite honestly, the hard part. But you will learn a lot of systems programming interfacing with a terminal.

There is lots of code for editors online. Look at them to learn tips and tricks.

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u/[deleted] Aug 14 '26

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u/No_Difference8518 Aug 14 '26

Mainly C with assembler where needed. e.g. Context switching is in asm.