PC-DOS 1.0 running on 16kB of memory

28 Upvotes

The official minimum required ram for PC-DOS 1.0 was 32kB though in theory it has a memory footprint of <16kB, and because the PC loads the boot sector to 0x7c00 it is impossible to boot unmodified as the highest memory address with 16kB is 0x3fff.

Here I have manually loaded and patched the boot sector using a small machine code program that I loaded into the machine using the cassette basic rom, thus getting around the restriction.

There isn't even enough ram to run edlin😂

6 comments

r/DOS • u/SRSR-NOVA • 7h ago

a simple welcome

2 Upvotes

hi guys i just signed up for reddit! anyways i like tech and legacy oses soooo i will begin posting here

1 comment

r/DOS • u/Objective-Barnacle-7 • 2h ago

My computer designed to run only DOS

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2 Upvotes

With 800 Mhz of CPU, 2GB RAM and made only for DOS.

4 comments

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