IBM System/370 Manual page 184

tapeless carriage, 3211 Printer 50
time of day clock
description 11
as support 53
Time of Day Clock Damage machine check 77
transition, as MFT and MVT 86
Two-Byte Interface feature 25, 46
UCW's 29
warm start 82
writable control storage
cycle time 8
description 8
for microdiagnostics 84
loading 9
2150 Console 13
2250 Display Unit 13
2305 facility Models 1 and 2
average search time using SET SECTOR 48
capacities 45
characteristics 48
command retry 42
conversion to 80
data recording on Model 1 43
data recording on Model 2 42
general description 41
multiple requesting 46
operation with block multiplexer channel 33
as support 54
rotational position sensing 33
use of
5
2835 Storage Control, for 2305 facilities 42, 44, 46
3211 Printer
description 49
FCB 50
as support 54
3330 facility
average search time using SET SECTOR 31
capacity and speeds 38
command retry 39
conversion 87
description 36
error logging 40
error recovery 39
features 41
multiple requesting
3U
operation with block multiplexer channels 33
OS support 53
rotational position sensing 30
use of 5
3336 Disk Pack, for 3330 facility 37, 38
3811 Control, for 3211 Printer 49, 50
3830 storage Control, for 3330 Disk Storage 39
110