21 ene 1964 año - Transformer Read-Only Storage (TROS)
Descripción:
IBM introduces Transformer Read Only Storage (TROS) with the arrival of the IBM 360. TROS modules preceded solid-state ROM chips, and each bit of this read-only memory for microcode was a little magnetic transformer. Punches in the mylar strips controlled whether current flowed through the transformer or around it, representing a binary zero or a one.
Añadido al timeline:
fecha:
21 ene 1964 año
Ahora mismo
~ 60 years ago