Operating instructions

Group
Ready Indicator Lights
(Cont.
)
Register Display Lights and
Switches
Control or Indicator
CARD READER READY light
(green)
N REGISTER READY light (green)
AIM light (green)
8K ONLY Indicator (green)
DECIMAL NODE Indicator (green)
INDEX GROUP indicator lights
P counter display lights
SAVE
P switch
I register display lights
A register display lights
Option Switches
RESET A switch
Function
Indicates when card reader
is in 'ready'status.
Indicates
N register is ready to
receive
input/output information
and no illegal or improperly
programmed instruction has
been given to typewriter or
paper-
tape reader/punch.
Indicates that optional automatic
interrupt
mode is operative.
Indicates,
when lit, that 8, 192
nleniory locations are available.
Indicates,
when lit, that the
central processor
is in the
dec
inlal mode.
Indicates
index group that
has been selected.
Display location of
instruction
in I register (see text for ex-
c ept ion).
Prevents P counter
from
incrementing.
Display current instruction.
Display contents of the A
register.
Feed
infornlation into the A
register while in either manual
or automatic modes and run
special routines such
as GAP
assemblies in the automatic mode.
Clears contents of
A register to
all zeros when manual switch is
engaged.