Vector Graphic Vector 4 - Page 173

INTERRUPTS
VECTOR 4 USER'S MANUAL
VECTOR 4 SPECIPICA'l10NS
A programmable timer (8253) is used to generate one interrupt and two baud
rates.
KEYBOARD
The Vector 4 uses a detachable keyboard which has 91 keys that are accessed
through a serial interface.
DRNES
The Vector 4 can use several different disk drive configurations. These
include one 5 1/4 inch floppy and one 5 1/4 inch hard disk, or two 5
1/4 inch
floppies. The following
chart gives the specifications for the individual drives.
Drive Type
5 1/4 inch Floppy
5 1/4 inch Hard
Disk
Rev. B -
1-20-83
Specifications
Capacity-
630 Kilobytes
Transfer
Rate- 250 Kilobytes/sec
Rotation Speed-
300 RPM
Capacity- 5 or 10 Megabytes
Transfer
Rate- 5 Megabytes/sec
Rotation Speed-
3600 RPM
1100-0001
X A-3