cdrom/                          CD-ROM drive drivers (SCSI and non-SCSI)
com/                            serial port drivers
dasd/                           hard disk controller (mostly SCSI) drivers
display/                        PM display drivers
mouse/                          mouse drivers
network/                        NDIS (and ODI) network card drivers
printer/                        PM printer drivers
sound/                          MMPM/2 sound card drivers
mmpm2/                          MMPM/2 CODE's and similar stuff
source/                         source code of device drivers
virtual/                        virtual (MDOS) drivers
pcmcia/                         PCMCIA related drivers
pen/                            PenOS/2 drivers
ifs/                            installable file systems
misc/                           miscellaneous device drivers
netprint/			networked printer drivers
usb/				USB system and peripherals drivers