IBM 3803 Manual page 7

Magnetic tape subsystems subsystem description
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Abbreviations
BCD
binary coded decimal
LWR
loop write to read
BOT
beginning of tape
meter
m
BPI
bytes per inch
millimeter
mm
BSB
backspace block
millisecond
ms
BSF
backspace file
MS
1
Mode Set 1
ccw
channel command word
MS 2
Mode Set 2
CE
cust9mer engineer
MTE
multi-track error
ChE
channel end
NOP
no operation
cm
centimeter
NRZI
non-return to zero,
IBM
CPU
central processing unit
csw
channel status word
OS
operating system
CUE
control unit end
PE
phase encoded
DMS
diagnostic mode set
rewind
DSE
data security erase
REW
ROS
read-only storage
EBCDIC
extended binary coded
RUN
rewind/ unload
decimal interchange code
R/W
read/write
EOT
end of tape
second
sec
ERG
erase gap
SIO
start
I/
0 instruction
FRU
field replaceable unit
Sw
switch
FSB
forward space block
Two-Channel Switch
FSF
forward space file
TCS
TI
tape indicate
hex
hexadecimal
TIE
track in error
IBG
interblock gap
TM
tape mark
ID
identification
UE
unit exception
IF
interface
usec
microsecond
1/0
input/ output
YRC
vertical redundancy check
ips
inches per second
Kb
kilobyte
WTM
write tape mark
Kd
kilodigit
Abbreviations
7

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