Jeff Jetton

@jeffjetton.bsky.social

56 Followers 78 Following

He’s an accordionist and pianist. You might see him tweeting about bikes, old computers, and data science too.

6502 machine code and corresponding assembly language for a program that prints "TGIF" to the screen.
Picture of the front cover of Queen's "News of the World" album, which features, among other things, a giant, concerned robot.
Photo of a 1970s-era metal lunchbox and thermos, with painted images of the TV show "Emergency" on them.
Photo of five little Lego people. They predate the "minifigs" that are more well-known these days. They consist of a head sitting atop a 2x2 brick, and this brick has flexible (and detachable) arms coming out of the sides. The rest of the bodies are various combinations of compatible Lego bricks, giving them a vaguely human shape. The plastic hair on their heads is detachable and interchangeable too, which is fun.
Distracted boyfriend meme where the man pictured (labeled "ME") is checking out a woman walking by (labeled "PDP-8") while his presumed girlfriend/wife (labeled "6502") gives him an annoyed look.
Still of the high school from the "The Breakfast Club", a movie that takes place on a single day of detention. There's a subtitle that shows that the date is Saturday, March 24, 1984. A heading further specifies that detention started at 7AM.
1973 photo of Welsh musician Blue Weaver playing a small accordion on stage. Credit: Alamy
A table of 6502 CPU machine language instructions along with their octal opcodes
Photo of an electronics breadboard with several IC chips and wires. The chip in the upper left is a 65C02 CPU. An alphanumeric LCD screen in the lower right is displaying "Happy Chuck Peddle Day!"
The 1967 black-and-white photo "The Ultimate Confrontation: The Flower and the Bayonet", showing a 17-year-old girl holding a chrysanthemum in front of a line of bayonet-wielding soldiers, during an anti-war march in Washington, DC.
Black and white photo of singer/pianist Les McCann on stage, singing and playing a Fender Rhodes electric piano with an Arp Pro Soloist synthesizer on top.
Photo of a homemade 6502-based computer, built on a breadboard. There is a 16-key membrane keypad and a small LCD display connected to it. The display is showing the status of the CPU registers.
A Tivoli Audio Model One analog radio setting on top of an 8-Track cassette player.
A '70s-era metal lunchbox based on the TV show "Emergency"
A hand holding a new copy of the first issue of "Compute's Gazette" magazine.
A leadsheet for the song "Dugga Doo"
Cartoon of a robot with a human female. Human: "Robobert... do you think I'm pretty?". Robot: "Babe, you are a one zero". (It is ambiguous as to whether he said the word "ten" or "one zero"). Human: "Wait... in base ten or binary? Which one, Robobert?" The last panel shows the robot sweating and short circuiting.
Google AI Overview that reads: The saying "don't drain the bathtub after midnight" is a superstition, and while there's no scientific basis for it, it's rooted in the idea of avoiding negative consequences or bad luck after that time. Some explanations point to the idea that midnight marks the transition to a new day, and draining the tub afterward could symbolically drain away good luck or energy for the day ahead. Others see it as a way to avoid disturbing the spirits that may be active at night. Ultimately, it's a belief passed down through culture and tradition, and its meaning is more about the symbolic act of avoiding negative energy than any literal effect.
Screenshot of AI output. It reads: The saying "two farts are worth more than a sack of potatoes" is a hyperbolic, humorous way of saying that something seemingly worthless or insignificant can be more valuable or valuable than a tangible possession, like a sack of potatoes. It highlights the subjective nature of value and the potential for things to be worth more than their material worth.
Shot of the front of the ICC from the 1980 movie "The Apple"
Front panel of a "straight 8" PDP-8 minicomputer.
The cover of a-ha's 1985 album "Hunting High and Low". A red box has been drawn in the lower-left corner to highlight that, among the people in the cover's black-and-white photo, there's a dog just laying on its side on a bench, chilling.
Comic strip drawing of a hand reaching into a bag, with the words "...and fate draws again from his bag of tricks"
Photo of a collection of generic products, perhaps from the early 1980s, each simply labeled with the name of the item.
Screenshot of the 1982 Atari video game "Raiders of the Lost Ark". It's a mostly plain screen, with few flat, blocky objects in a handful of colors, barely recognizable as representing people and items.
Photo of a black-and-white CRT monitor displaying several lines written in the programming language Forth. A older-style computer keyboard sits in front of it. Off to the side is an iPad displaying a page from Leo Brodie's book "Going Forth".
A still from the move "Wayne's World" with the word "NOT!" superimposed onto it in large, white letters.
Two medium-sized stereo speaker cabinets, partially dismantled. The speaker from one has been removed and is next to the cabinet. Parts of it are deteriorated. A screwdriver, a tube of glue, and two replacement foam gaskets are nearby.
A low-resolution, black-and-white photo of two young children using a printer-based computer terminal, circa 1980. A caption at the bottom reads "At the Computer".