My entry to the field was early 1970 as a trainee programmer on an IBM 360/30 with 16K memory that was soon doubled to 32K. I remember being intrigued to see the ferrite cores with 2 wires running through the centres, 1 core per bit, 9 per word.
My first PC, belonging to my employer, was an IBM portable referred to as the "sewing machine" due to it looking like one, used for a/h remote system support of an unattended 24x7 online system supporting coal mining operations.
MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
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