This is the top of the page.
Jump to main content.

Please note that JavaScript and style sheet are used in this website,
Due to unadaptability of the style sheet with the browser used in your computer, pages may not look as original.
Even in such a case, however, the contents can be used safely.

Orchestrating a brigher world


D3661 Hard Drive

Capacity Formatted: 118.05 MB Unformatted: 134.45 MB
Configuration Information
Switches Drive Address and Mode Switch:
DS3 = 1 = ID2; bit value = 4
DS2 = 1 = ID1; bit value = 2
DS1 = 1 = ID0; bit value = 1
M = 0 = start spindle motor at power on
S = 1 = hard sector mode
SCNT2 = 1 (This setting of SCNT switches)
SCNT1 = 1 (allows 64 sectors/track and)
SCNT0 = 0 (328 bytes/sector)
Terminating Resistors:
There are two switch banks. When two or more drives are daisy-chained, leave drive at further end of cable terminated and switch remaining drive's terminators to "off."
Disk Configuration
Disk Size 3.5"
Disks 4
Servo Heads 1
Data Heads 7
Data Surfaces 7
Tracks/Surface 915
Performance Specifications
Interface ESDI
Data Transfer 1.25 MB/s
Voltage Required +5V/+12V