Memory of the S-memory

The S-memory (S-expression-memory) was made by hand soldering back-to-back massive and expensive amount of dynamic 64 kbit memory chips. To be used with Osborne-1 CP/M-machine around 1982.

One word was 35 bits wide, containing two 16 bit addresses and 3 bit tag field. Tag field told if the address-fields contained numbers, symbols, machine code or Nokolisp-node.

Plans for automatic address latch was made, allowing CAR/CDR-operation in memory itself.

This memory was partially visible in Osborne's address space.

S-memory fit into storage space reserved for floppy disks: