Did I write a bootloader or an operating system?

J

jj1984

Member
Hi,

A few weeks ago I wrote a program that calls a BIOS interrupt to talk to the pixels on the screen and make a horizontal test pattern looking design.

I burned this program to a USB drive and made the drive bootable.

Then I booted it, and it worked.

My program really does nothing obviously.

But technically, did I write a bootloader or an operating system?
 
Technically a bootloader. If it were a operating system it would tell your components how to work with each other. You can add on to the program to create a OS though.
 
I wouldn't really classify it as an OS, as per above you aren't managing any underlying resources or similar.
 
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