"Magnetic-core memory was the predominant form of random-access computer memory for 20 years between about 1955 and 1975. Such memory is often just called core memory, or, informally, core.
Core memory uses toroids (rings) of a hard magnetic material (usually a semi-hard ferrite) as transformer cores, where each wire threaded through the core serves as a transformer winding. Three or four wires pass through each core.
Each core stores one bit of information. A core can be magnetized in either the clockwise or counter-clockwise direction. The value of the bit stored in a core is zero or one according to the direction of that core's magnetization."
@Full_marx "A 32 x 32 core memory plane storing 1024 bits (or 128 bytes) of data."
I missed adding the photo caption.
That whole module won't hold one average Tweet post, even the short old 140 chars max ones. This is 128 Bytes total.
No bloated software in those days. 😈
