Questions tagged [bios]
The bios tag has no summary.
5 questions
-2 votes
1 answer
310 views
Loading My Custom OS from USB flash drive
Suppose I want to create a portable OS, that needs a USB flash drive only to work. and i wrote my boatloader in the first sector to be loaded by the BIOS, from here on, what can I do to load my OS ...
- 17
1 vote
2 answers
161 views
What could "move an instruction without a 16-bit bus" mean?
Spoiler alert! This question (and, possibly, answers) could contain spoilers regarding "Halt and Catch Fire" TV series. Background I'm a web deleloper and do not have a CS degreee, so my ...
- 113
69 votes
3 answers
57k views
Which programming language is used to write a BIOS program?
As I understand, the BIOS code/bitstream that is held in the ROM should be generic (work alongside with multiple CPU types or ISAs). In addition, I saw mentioned on the web that it is possible to dump ...
- 779
0 votes
4 answers
7k views
Relation between Kernel & BIOS routines [duplicate]
How does a Kernel provides different functionality to OS? Does it use the BIOS routines or use special device drivers for this, or something else? If uses BIOS how does it come to know which routine ...
- 11
0 votes
3 answers
2k views
What level of a computer system does firmware run on?
In the following levels of a computer system, on which level does firmware (e.g. BIOS) run? I guess: BIOS doesn't depend on OS, so it must run on some level lower than level 3. BIOS is written in ...
- 5,555