Winchester Disk Drive Specifications - HP Apollo 9000 400dl Service Handbook

The ITR HP 46021Akeyboard
connects
to the system unit via a detachable cord
which is labeled at both ends. One end of the cord is Ia&led with a single dot,
which connects to the HP-HIL port at the rear of the system unit (also labeled
with a single dot). The other end of the cord is labeled with two dots, which
connects to the port at the rear of the ke board (also labeled with two dots). The
i keyboard also has a connector for HP-H L devices,such as a mouse.
Winchester Disk Drive Specifications
Table 1-1 lists the specifications for the Model 400t and 425t internal 200-MB
and 400-MB Winchester disk drive(s).
T&le 1-1. Winchester D&k Dn"veSpecifications
Specifications
Characteristic
Rodime 200-MB Quantum 200-MB 400 MB
Capacity (formatted)
2MlMB min. 210 MB min. 420 MB min.
Single cylinder seek
5 msec max 5 mscc max.
5 mace max.
Average seek time 18 mace 15.5msec 14 mscc
Maximum stroke
40 msec 30 msec 30 msec
Rotational speed
3600 rpm 3600 rpm 3600 rpm