Early Vintage Computer Buses Have Their Influences On Your Computer Today
The term expansion bus is a frequent term in vintage computer terminology which requires elaboration. Much of the legacy of vintage bus systems are in our current computer systems today.
To begin with the expansion bus” is a data highway for computer data information to travel on: the bandwidth is in essence the number of lanes. The bigger the bandwidth the more data can be sent. As examples, an 8 megabyte bandwidth means that data can be sent in 8 bits chunks. Our current systems use between 32 bit and now 64 bit bandwidth.
An expansion bus is where cards connect to the computer; Cards have an expansion edge, which fits snugly into the bus much like an electrical plug fits into a wall socket.
When cards are plugged into the bus, they communicate with the system, sometimes through the BIOS and others not. (The BIOS is the basic input /output system that tells the computer how to move data from the different components.) The 8, 16 or 32 bit bandwidth is an important consideration due to communication time between the cards. For example you have a 16 bit vintage 286 PC and...
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