Ah, remember the days?

Remember the days of squeezing TSRs into high memory?


Memory Type        Total       Used       Free
----------------  --------   --------   --------
Conventional          638K        59K       579K
Upper                   0K         0K         0K
Reserved              386K       386K         0K
Extended (XMS)   3,627,654K    30,373K 3,597,281K
----------------  --------   --------   --------
Total memory     3,628,678K    30,818K 3,597,860K

Total under 1 MB      638K        59K       579K

Largest executable program size       578K (591,856 bytes)
FreeDOS is resident in the high memory area.

If you want to access that 3GB of XMS, you’ll have to page it in and out in 64K chunks.

On a freshly delivered HP Compaq system, without Windows. Clearly they couldn’t ship it with no OS loaded at all, because that would be admitting that the person receiving it was pirating (or so the logic goes). So, they pre-loaded FreeDOS on it.

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