Words change meaning at lightning speed in the modern memetic internet era; if you're over the age of 30 and not terminally online, Gen Z / Alpha lingo is probably going to lose you somewhere between "cap" and "six-seven." Slang may spread faster these days, but on the flip side, here's a piece of trivia that is probably outright brain-melting for anyone born after the dawn of the internet:
"Online" actually used to mean "offline."
"Back in the day, a computer that was accessible via a network or some other remote connection was generally called 'up,' rather than 'online,'" Chen wrote. "Officially, 'up' referred to whether the computer was running at all, but since these types of computers (mainframes or timesharing systems) had as their sole purpose to be connected to by other computers, being 'up' was useless if they weren’t also open to connections."
But is it really so black and white as "online" flipping meanings as soon as the world wide web came around? Not exactly—this is where "on-line" enters the chat.
Looking back at ads for early, pre-web systems like CompuServe and The Source, you'll see the use of "on-line" fairly often. At the time the hyphen made literal sense—you were, after all, connected over a phone line. Before adventure game company Sierra Entertainment was called that, it was called Sierra On-Line, and it was actually founded in 1979 under the name On-Line Systems.
"I had become an expert in working with computers that were accessed via remote terminals," founder Ken Williams wrote in his book about the history of Sierra. In the late 1970s Williams consulted for a number of companies before discovering the teletype game Colossal Cave Adventure inspired him and wife Roberta Williams to make games of their own.
"My work at one of those companies required that I take home a teletype that would allow me to write code for some unseen remote computer… To use the teletype I had to load a program from paper tape, then use an acoustic modem to connect to a remote computer. The modem was a little gadget that would transmit data as sound. The sounds were a little like morse code in that seemingly random beeps and boops would represent data being sent as audible sound over a phone line."
In '80s computing magazines like InfoWorld, you can see the dueling meanings of "online" and "on-line" butting up against each other in their own time. Take this issue from August 1984: there's an ad for word processing software Edix that refers to its "online help," clearly meaning it was available within the program (offline!) in the same way Chen referred to WinHelp. (Page 10 in the embed below).
But there's also an article dedicated to a California restaurant planning to "go on-line with its prizewinning wine list" with an "electronic bulletin board and wine club we're calling 'On-Line Wine,'" the restauranteur said. (Page 24, below).
It makes sense that eventually the two different definitions became too confusing, and "on-line" eventually won out as the dominant meaning, earning the right to ditch its hyphen. But I think we could probably still get a really good who's on first routine going between someone who got started using computers in the 1980s and someone who's never used a computer without a wi-fi connection. Surely hilarious confusion would ensue before they eventually found common ground in finding out where the name "wi-fi" came from.
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