User Guide

Basics Technology - 9
accessed instructions in the cache where they can be read
quickly, thus freeing up the processor to move onto the next
set of instructions.
ROM
The 4 MB of ROM in the PowerBook 2400c is based on the
ROM used in the PowerBook 3400c. It includes the DR
emulator, which allows older 68K applications to run on the
computer. The ROM data path is 64-bits wide.
RAM
The PowerBook 2400c includes 16 MB of EDO DRAM located
on the logic board. Service providers can also populate the
computer’s one expansion slot with either a 16 MB or 32
MB EDO RAM card from a third-party RAM vendor. The RAM