1MB RAM Memory Expander

A 1-megabyte RAM expansion — an enormous amount of memory for the ADAM. Because the machine can't natively address memory beyond its built-in 64K plus one 64K expander, this card requires a companion "addressor" board (such as an MIB3, MIB238, or EXPAnDDR) to supply the extra signal that switches the memory into view.

Most native ADAM software won't use memory this large directly, but the CP/M and T-DOS operating systems will turn it into a very fast RAM disk, dramatically speeding up disk-heavy work. Installs in expansion slot #3.