Pdp11/23+ EPROM upgrade

[Roe Peterson]

> On Feb 6, 2015,  machine. A 64K chip is going to be totally meaningless.
>>>> 
>>>> So why are you looking for a 64K chip? (27512 I would assume that would be...)
>>> 
>>> 2716 = 16k bits = 2kbytes X 8 bits
>>> 2764 = 64k bits = 8kbytes X 8 bits
>>> 
>>> The latest rom images for the 11/23+ require 8kbyte chips.
>> 
>> Ah, so 2764, not 64K bytes... Oh well... :-)
>> When did people start counting memory sizes in bits???

ROMs are like bandwidth on the Internet, sold in bits (kbits, megabits) ,consumed in bytes.

> 
> Oh, at least as early as the mid-70s, with the 2708 (1KByte).
> 
> Yes, I too wish they had used bytes for eprom sizes.
>