define platform and system

[orangecms]

also the term platform engineering, who coined it etc
https://en.wikipedia.org/wiki/Platform_engineering
(mostly in a service context here....)

[orangecms]

mention https://en.wikipedia.org/wiki/Hardware_Platform_Interface which is more like IPMI, DMI or other DMTF stuff

simple: Platform = System + Interfaces

interfaces be stable so that apps can run on the platform and services can be integrated; interfaces form a contract

[orangecms]

How about general terns... or other domains than hardware and software?

https://www.weforum.org/stories/2017/02/what-are-platforms-and-systems/

[orangecms]

device trees describe a platform to the OS; they offer slices of memory, platform ID (compat string) and peripherals (MMIO...)

[orangecms]

today, at 5 least kinds of platforms on different layers:

• hardware; interfaces: special instructions, IO, mask ROM protcol
• UEFI/ACPI: interfaces are standardized
• OS: graphics libraries, file system, system calls, IO (e.g. /sys/), desktop features (tray, notifications, sharing)
• web browser: high-level applications, more abstract than OSes
• web services: contracts between vendors, web based APIs