IBM PC 365 Expansion Slots:

In PC models with a preinstalled SCSI hard disk drive, occupied and unoccupied
drive bays are as follows:
3.5-Inch SCSI
Hard Disk Drive
5.25-Inch CD-ROM
or PD/CD-ROM Drive
(Standard in Some Models)
3.5-Inch Diskette Drive
3.5-Inch Internal
Bay for Optional Drive
3.5-Inch Internal Bay
for Optional Drive
Expansion Slots: Your computer has five expansion slots. Several of these slots
may be occupied, depending upon the model of your PC. Unoccupied slots can be
used for installing adapters. The following illustration shows the locations of the
expansion slots.
Expansion Slots
Chapter 1. Your IBM Personal Computer 9