Bad idea: boot a diskless (no floppy or HD) 5150 into DOS.
How? No, not the cassette port. The only other port. The keyboard!
We make a PC/XT protocol keyboard that writes a small stub and then copies DOS into RAM (with a ramdisk, natch) through the keyboard port.
William D. Jones
in reply to Foone🏳️⚧️ • • •AFAIK, only the XT BIOS has the test code still active for keyboard port upload: reenigne.org/xtserver/
Or do you have something that doesn't use the BIOS in mind?
XT Server
www.reenigne.orgFoone🏳️⚧️
in reply to William D. Jones • • •vxo
in reply to Foone🏳️⚧️ • • •Andrew Golding
in reply to Foone🏳️⚧️ • • •Brad Martin
in reply to Foone🏳️⚧️ • • •Unus Nemo
in reply to Brad Martin • •@Brad Martin
A Disk Operating System (DOS) is an Operating System (OS) that loads from disk versus being resident to be loaded from cmos such as Commodore 64 etc.
I am sure they are refer to a MS/DOS - PC/DOS compatible OS when they refer to DOS. Even though it would not be a DOS as it does not boot from a disk.
ティージェーグレェ likes this.
🇺🇦 haxadecimal
in reply to Unus Nemo • • •I'm not sure where you've gotten the idea that a DOS has to be booted from disk. While that was the most common way to boot a DOS by.the 1980s, it wasn't always the case. A disk operating system is an operating system designed to operate a disk. What device it boots from is largely irrelevant.
Most early disk operating systems, e g. IBM's 1966 DOS/360, could be booted (IPLed) from tape, and that was not at all uncommon.
AFAIK, the very term "DOS" comes from DOS/360.
Unus Nemo
in reply to 🇺🇦 haxadecimal • •@🇺🇦 haxadecimal
The DOS acronym stands for Disk Operating System and has never meant a operating system designed to operate disks nor have I ever heard anyone make that claim before. Even references in Beneath Apple DOS use the definition I give. So does the Wiki including the Wiki for DOS/360.
The DOS acronym predates MS/DOS, CP/M and other systems people tend to think of first today. Though the acronym means an Operating System that is loaded from the disk drive instead of from ROM chips or Tape as as they were in older systems did until DOS systems were developed. This is the definition consistently given in a large number of Development books I own and never once have I heard an alternative until you made this claim.
The acronym just sort of became associated to MS/DOS due to heavy branding efforts. Though I was around before MS/DOS so I know there were DOS systems far before Microsoft's OS.
Check the Wik
... show more@🇺🇦 haxadecimal
The DOS acronym stands for Disk Operating System and has never meant a operating system designed to operate disks nor have I ever heard anyone make that claim before. Even references in Beneath Apple DOS use the definition I give. So does the Wiki including the Wiki for DOS/360.
The DOS acronym predates MS/DOS, CP/M and other systems people tend to think of first today. Though the acronym means an Operating System that is loaded from the disk drive instead of from ROM chips or Tape as as they were in older systems did until DOS systems were developed. This is the definition consistently given in a large number of Development books I own and never once have I heard an alternative until you made this claim.
The acronym just sort of became associated to MS/DOS due to heavy branding efforts. Though I was around before MS/DOS so I know there were DOS systems far before Microsoft's OS.
Check the Wiki for a more verbose explanation. No where in it will you find that DOS means a Operating System to Control Disks. In fact there is no Operating System just to control disks that is always a module (driver) a part of the OS not the OS.
The OS supplies a basic IOCTL (via system calls available to applications) that give a common interface to the IO Devices to connect with. The basic interface for Disk Drive control is specified in the IOCTL standard. I was first exposed to it in Books like Machine Langue for the Commodore 64, Commodore 64 Kernel Functions, Beneath Apple DOS, Beneath Apple Pro Dos, MS/DOS Kernel Function Calls, FreeDOS Kernel and other books On Operating Systems and their architecture and design.
Read the DOS/360 wiki ,were it describes the different iterations OSes for the IBM System 360, to see how they differentiate between DOS/360 and TOS/360 and why they were named that way. Note that the early IBM System 360 that booted from Tape were TOS systems not DOS, no need to take my word for it, check the Wiki.
If you could cite some authority that uses DOS to mean and Operating System to Control Disks I would be glad to look it over.
DOS Wiki
DOS/360 Wiki
Brad Martin
in reply to 🇺🇦 haxadecimal • • •@brouhaha @unusnemo oof, the reply guys are out in force on this shit post.
Current drive is no longer valid>
Rhialto
in reply to 🇺🇦 haxadecimal • • •And the Commodore 2040 dual disk drive had a DOS... in ROM. So that you could use your disk (with the 2 CPUs it also had).
@unusnemo @bmartin427
Shawn K. Quinn
in reply to Foone🏳️⚧️ • • •Matthias
in reply to Foone🏳️⚧️ • • •Foone🏳️⚧️
in reply to Matthias • • •Gabe
in reply to Foone🏳️⚧️ • • •Blank Greg
in reply to Foone🏳️⚧️ • • •