IBM ThinkPad 600 - Chapter 2. Using Audio and Modem Features

Description
The IBM ThinkPad 600 computer (hereafter called the ThinkPad
computer or the computer ) is a notebook-size computer that features
AT bus architecture. Each computer supports one UltraSlim Bay and
one internal hard disk drive. The ThinkPad 600 computer also
supports an internal CD-ROM drive or a diskette drive in the
UltraSlim Bay.
Programs can distinguish the foregoing computer model from other
ThinkPad models by reading the system ID:
Interrupt 15H
Function code (AH)=C0H.
Returns
ES:(BX+2) : Model Byte
ES:(BX+3) : Submodel Byte
The system microprocessor contains an internal cache and a cache
controller.
Figure 1-1 lists the model bytes, submodel bytes, and system clock
speed of the system board for each model.
Figure 1-1. Model and Submodel Bytes
Model Model Byte
(Hex)
Submodel Byte
(Hex)
System Clock
600 FC 01 33 MHz
For a listing of the other systems, refer to the IBM Personal
System/2 and Personal Computer BIOS Interface .
1-2 System Overview