K PowerBook 140/145/ 145B/170 - Apple Collection

Specifications Memory - 3
Memory
RAM
4 MB, 2 MB installed on the daughterboard and 2 MB on an
expansion card
Expandable to 6 MB by replacing 2 MB expansion card with 4 MB
card
RAM 145B
4 MB pseudostatic RAM (PSRAM) installed on the daughterboard
Expandable to 8 MB by installing 4 MB expansion card
ROM
1 MB, expandable to 4 MB
PRAM
256 bytes of parameter memory
VRAM
256K of static video display memory