NEC FD1165 Maintenance Manual page 12

Flexible
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LIST OF ABBREVIATIONS
A
Ampere
DIR
Direction Select
DCG
Disk Change
DLH
Door Lock Hold
DSX
Drive Select
FDD
Flexible Disk Drive
FM
Frequency Modulation
FUR
File Unsafe Reset
FUS
File Unsafe
HLD
Head Load
IC
Integrated Circuit
IDX
Index
I/O
Input/Output
k
1000
kg
Kilogram
LED
Light Emitting Diode
LSI
Large-Scale Integration
LWC
Low Write Current
mA
Milliampere
MB
Megabyte
MFM
Modified Frequency Modulation
ms
Millisecond
mV
Millivolt
PCB
Printed Circuit Board
POH
Power-On-Hours
pp
Peak-To-Peak
PRT
Write Protect
RDT
Read Data
RDY
Ready
rpm
revolutions per minute
SRD
Standardized Read Data
SSL
Side Select
STP
S tep
SYC
Synchronization
TKO
Track 00
TSD
Two-Sided Disk
TTL
Transistor Transistor Logic
USE
In Use
Vdc
Volts direct current
VFO
Variable Frequency Oscillator
WDT
Write Data
WGT
Write Gate
WID
Window
ys
Microsecond

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