For WWII specifically, anything written might not actually be sent. V-Mail services photographed letters, reduced them onto microfilm, and reprinted them overseas. A lot of people were sending a lot of mail and paper is fucking heavy.
AFAIK, addressing worked about the same way it works now: you’re given an address for a specific person, at a somewhat-abstract location. Sometimes it’s a very concrete place - no pun intended - like a permanent airbase or an actual city. Sometimes it’s a boat. Sometimes it’s a “forward operating base,” which falls somewhere between no-fun-allowed paintball facility and Burning Man with more grabassing.
APO – Army/Air Force Post Office. The Military Post Office for Army and Air Force personnel
FPO – Fleet Post Office. The Military Post Office for Navy and Marine personnel
DPO – Diplomatic Post Office. The preferred designation for mail addressed to Department of State overseas post offices.
MOM – Military Ordinary Mail. Mail originating from the Department of Defense.
MPO – Military Post Office. Provides postal services for military personnel.
PAL – Parcel Air Lift. An expedited service for Package Services is available for an additional fee.
Anyway you can also send “unit boxes” for a whole group, but I think you’re still supposed to address them a specific individual.
I do some 8-bit coding and only last month realized logarithms allow dirt-cheap multiplication and division. I had never used them in a context where floating-point wasn’t readily available. Took a function I’d painstakingly optimized in 6502 assembly, requiring only two hundred cycles, and instantly replaced it with sixty cycles of sloppy C. More assembly got it down to about thirty-five… and more accurate than before. All from doing exp[ log[ n ] - log[ d ] ].
Still pull my hair out doing anything with tangents. I understand it conceptually. I know how it goddamn well ought to work. But it is somehow the fiddliest goddamn thing to handle, despite being basically friggin’ linear for the first forty-five degrees. Which is why my code also now cheats by doing a (dirt cheap!) division and pretending that’s an octant angle.
Sorry, it just sounds like it was leading to some “ah-HA!” reversal, being so brief and general in response to normative statements about a complex topic.
Removing DRM is generally somewhere between outright illegal and getting attacked by flesh-eating lawyers.
Blizzard killed an independent Warcraft / Starcraft server called BNetD.
Nintendo’s whole attitude toward emulation is infuriating nonsense pushing for digital art to slowly rot.