I go to events like vintage computer festivals, and old folks are having a party with computers.

I look at younger people with computers, and for the most part they are just commodity tools for hosting apps and watching media. Even younger people describing what they are doing for fun with computers are building "home labs" of application hosting systems.

Sending a carriage return and linefeed to a TTY 33 and then printing works fine. Doing them in the opposite order, if the carriage is to the right of the page, will result in a linefeed (platen rotation) happening quickly, then the carriage starting to move left to the beginning of the next line, and then the next printed character will print wherever the carriage happens to be at the time - not yet to the left. So you will be missing a character at the beginning of the line because it's in between the two lines in an unexpected column-ish.

I have run into (in my mind, "hipster") code where the programmer for some reason reversed the order of CR and LF.

https://en.wikipedia.org/wiki/Kremvax

https://www.lo-tech.co.uk/wiki/IBM_Personal_Computer_XT_Syst... https://www.lo-tech.co.uk/understanding-pcxt-slot-8/

https://www.core64.io/

That airport is still operating and is the oldest continuously operating airport in the world.

https://www.nps.gov/articles/college-park-airport.htm

FWIW, I think there are 5 surviving original Wright bicycles, so they are outnumbered by the airplanes.

https://en.wikipedia.org/wiki/Intel_8089

Look at the Teletype ASR-33, introduced in 1963.

For one quickly Googled example, the Sperry Univac 8433, may its heads never crash:

https://bitsavers.trailing-edge.com/pdf/univac/1100/brochure...

Relevant chapter from FAA "Pilot's Handbook of Aeronautical Knowledge": https://www.faa.gov/sites/faa.gov/files/17_phak_ch15.pdf

In the "Flight Levels", altitudes are referred to not in feet above sea level but as "FLxxx" where xxx is a nominal altitude in 100s of feet.

Altimetry is done using barometric pressure. Since this varies with weather, airplanes at lower altitudes set their altimeters to the local barometric pressure for a reasonably accurate reading. In the flight levels, where planes are typically covering ground quickly and there is very little chance of your path conflicting with the surface of the Earth, every plane sets to an agreed-upon reference of 29.92 inches of mercury as the altimeter setting.

https://en.wikipedia.org/wiki/Burroughs_MCP

https://en.wikipedia.org/wiki/The_Computer_Museum,_Boston#Co...

Using modern electronics (FPGAs etc.), processors, and high-density memories, you can imagine the processing, graphics, and I/O improvements that can be made for relatively low cost.

Many hobbyist machines at this point are highly modified, with much new software taking advantage of the new features, so specifying "classic unmodified" pretty much means a system into which you could have slapped a ROM cartridge purchased at your local computer store back in the day. XL/XE sounds like it rules out the original 800 and 400 models.

http://www.retrotechnology.com/memship/memship.html

The downtown location has more interpretation of artifacts - sometimes at the Udvar Hazy it's hard to really appreciate what you're looking at without a docent-led tour or other context.

It also doesn't hurt that the docents include people like an SR-71 pilot.