21 янв 1964 г. - Transformer Read-Only Storage (TROS)
Описание:
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.Добавлено на ленту времени:
Дата:
21 янв 1964 г.
Сейчас
~ 61 г назад