The problem with removing the chip and copying it is the very real chance of
glitching the contents in the process. Much better to make a backup copy first.
The 32Kx8 NVRAMS are used for system memory and things like storage of user
programs and data.
Note that the two 32Kx8 devices are form a 16-bit word. The 2kx8 cal ram is
only on the high byte of the data bus. MREAD returns memory contents as a
signed integer value (-32768..32767) in ASCII.
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