Interesting Examples
Accessing an individual byte frequently requires reading or writing the full bus width (a word) at once. In these instances the least significant bits of the address bus may not even be implemented - it is instead the responsibility of the controlling device to isolate the individual byte required from the complete word transmitted. This is the case, for instance, with the VESA Local Bus which lacks the two least significant bits, limiting this bus to aligned 32-bit transfers.
Historically, there were also some examples of computers which were only able to address words.
Read more about this topic: Address Bus
Famous quotes containing the words interesting and/or examples:
“One of the most interesting and affecting things [on a difficult return march from a raid into Virginia] is the train of contrabands, old and young, male and female—one hundred to two hundred—toiling uncomplainingly along after and with the army.”
—Rutherford Birchard Hayes (1822–1893)
“No rules exist, and examples are simply life-savers answering the appeals of rules making vain attempts to exist.”
—André Breton (1896–1966)