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APPENDIX A - FLOPPY DISK SUBSYSTEM SPEC [FICATIONS
FLOPPY DIS K SPECIFICATIONS
Physical
Number of
Data
..sill.
~
Capacity
oSBI.
Manufacturer
8" full
1
610
kbytes
8
Shugart 801
8" full
2
1220
kbytes
3
Qume 842
8" half
2
1220
kbytes
..
Qume 242
5" half 96 tpi
2
772
kbytes
6
Teac FD -5 5F
5" half 48 tpi
2
386
kbytes
6
Teac FD-55B
FORMAT SPECIFICATIONS
Physical
Operating
Number of
Number of
Sector
..sill.
System
Tracks
Reserved Tracks
.s.ill.
~
8" all
CP/M
77
2
256
bytes
8" all
TurboDOS
77
0
1024
bytes
5" 48 tpi
CP/M
40
2
256
bytes
5" 48 tpi
TurboDOS
40
0
1024
bytes
5" 96 tpi
CP/M
80
Z
256
bytes
5" 96 tpi
TurboDOS
80
Z
1024
bytes
"\
Physical
Operating
~
System
Density
.llit..
.s.c.
EQI.
8" all
CP/M
S1ngle *
0
lA
1A
8" all
CP/M
double
1
1A
1A
8"
all
TurboDOS
double
3
08
08
5" all
CP/M
double
1
10
10
5" all
TurboDOS
double
3
05
05
oJ
*Single density is normally not used as an IMS format; °'lowever, many different software
packages are distributed in IBM slngle density 8" format crBM 3740) and the 8" IMS
systems will read this format.
FLOPPY POWER REQUIREMENTS
SIZE
llSy
AC
~
±ll.Y..
±1Y..
.:..J...Q.Y.
~
8" full
Yes
Yes
No
Yes
Yes
Yes
8" half
No
Yes
No
"' r es
No
Yes
5" all
No
No
Yes
"'res
No
Yes
J
IMS International
8000 Hardware Manual/7.01.83/page 120
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