Door Anoniem: Iets meer over de geheugenkoorden - het ROM geheugen van voor de uitvinding van de chip - die Hamilton bij NASA ontwierp:

https://airandspace.si.edu/stories/editorial/rope-mother-margaret-hamilton

Door Anoniem: Raar woord, geheugenkoorden. In gewone mensentaal: core memory.
Werd in de jaren 80 nog gebruik in (bv) PDP-8 tekstverwerkers.
Het is echt geheugen, er gaat niets verloren als de spanning uitvalt. Niet zoals dat nieuwerwetse DRAM.

In a male-dominated field, Hamilton became known as the “Rope Mother,” which was an apt description for her role and referred to the unusual way that computer programs were stored on the Apollo Guidance Computers.

Like all digital computers, they stored information in binary arithmetic—as sequences of ones and zeros. The computer had two kinds of memory. The first could be written to and read from during the machine’s operations—what we now call RAM. The second was read-only—what we now call ROM.

Modern memories store these digits on silicon chips, but in the 1960s the preferred way to store digits was by magnetizing tiny, donut-shaped pieces of material called cores. Each Apollo computer contained 4 kilobytes of read-write memory and 72 kilobytes of read-only memory. For the read-only memory, the cores were threaded with a series of wires. If a wire passed through the core it sensed a binary one, and if the wire bypassed the core, a binary zero. The cores were laid out in a long sequence, with the wires snaking through them—the assembly was called a core rope.