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4. The most common terminal used with PDP-8s and other machines of its era was the Teletype Model 33 ASR, the "ASR" referring to the Asynchronous Send and Receive version of the Model 33. Although you will commonly see that terminal type referred to as an ASR-33, that is not its [proper](https://en.wikipedia.org/wiki/Teletype_Model_33#Model_33_ASR_vis-.C3.A0-vis_ASR-33) name.
As for my "wildly popular" characterization, they sold over half a million of them by the mid 1970s. Such success wouldn't be exceeded by a computer product until the first consumer-friendly microcomputers came out.
5. Remember the notation: 4096 12-bit words is 6144 bytes, but we always speak of core memory in terms of words, not bytes. It's "4 k" or "4 kW", not "6 kB".
6. Pro tip: every time the third digit from the right side of an octal address goes up by 2, it is referring to a different PDP-8 page: page 1 begins at address 200₈, page 2 begins at address 400₈, etc. This is because 200₈ = 128₁₀ = 2⁷.
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## License
Copyright © 2017 by Warren Young. This document is licensed under the terms of [the SIMH license][sl].
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