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Claims  |
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We claim:
1. In a system for entering information into and taking information from a
digital computer by intelligence transmission over two channels, the
combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
system bus, memory and address trunk,
(B) said computer further including and being characterized by
(1) a console and console interface for entering information in machine
language and displaying information from various computer locations in
machine language, said console and interface comprising
(a) a plurality of switches for entry of word and function signals
sequentially one bit at a time,
(b) a plurality of bit indicators associated with respective ones of said
switches,
(C) said computer and interface together constituting
(1) means responsive to signals from said switches for setting up any
desired binary word and thereafter transferring said word to different
memory locations or registers within the computer,
(2) means for supplying to said indicators binary bit voltages to turn the
indicators on or off according to the respective bit values of a selected
word within the computer,
(D) means coupled to said indicators and responsive to the bit voltages
applied thereto for periodically creating in sequence time serialized
message pulse trains with respective time locations having a binary value
of a corresponding one of said indicators,
(E) means responsive to a received time serialized pulse train, formed
according to a predetermined code so that any train may correspond to one
of said switches, for creating in said console the same signals as if the
switch represented by the code of the train had been closed,
(F) means for transmitting to a base remote from said computer, via a
communications link, the pulse trains created by said means (D),
(G) means for transmitting from said base to same means (E), via a
communications link, successive pulse trains which are respectively coded
to correspond to successive ones of said switches whose effective
actuation is desired, and
(H) means at said base responsive to pulse trains received from said means
(F) for converting the serial pulses of each train into a signaled binary
word which is indicative of the states of said indicators at that time.
whereby binary words displayed by the indicators at said computer are
dynamically signaled at said base and changes in said computer, including
its console indicators, may be effected from the base as if the computer's
console switches were physically manipulated.
2. In a system for operating or diagnosing a digital computer from a home
base displaced from the computer site, the combination comprising
(A) a computer including memory for instruction and data words, a control
unit, an arithmetic unit, a system bus, and a console; said console having
(1) a plurality of switches for manual entry of instruction, data or
address words in binary machine language,
(2) a plurality of lamps excitable to display a word in binary machine
language,
(B) said computer further including
(1) a display register,
(2) means responsive to actuation of said switches to create successive
sets of binary signals on a first set of conductors, each set representing
in a predetermined code the particular switch actuated,
(3) means for applying over a second set of conductors binary voltage
signals to said lamps to turn each lamp on or off according to the
presence of a 1 or 0 binary signal in a corresponding bit location of said
display register,
(4) means for entering into said display register a binary word
corresponding in its bits to the different binary voltage signals on said
first set of conductors resulting from actuation of said switches,
(5) means responsive to certain signals produced by actuation of certain
ones of said switches for transferring the contents of said display
register to another register or memory location within the computer,
(6) means responsive to certain signals produced by actuation of certain
ones of said switches for transferring the contents of another register or
memory location within the computer to said display register,
(7) said means (5) and (6) being enabled or disabled by actuation of
function switches included within said plurality of switches,
(C) means at the computer site and the home base, adapted for
interconnection via a telephone link, to simultaneously send pulse train
messages in both directions,
(D) means connected to said second set of conductors for inputting to said
means (C) a first pulse train message periodically for transmission from
the computer site to the home base, each first pulse train message
containing time-serial bits of 0 and 1 value corresponding to the voltages
on respective ones of said second set of conductors,
(E) means at said home base for inputting to said means (C) a second coded
pulse train message for transmission from home base to the computer site
whenever it is desired to cause any change in said computer, any such
change being, in effect, as if one of said switches had been actuated,
(F) means at home base responsive to each of said first messages for
displaying or indicating or recording the word represented in such
message, and thus a word then in the display register of the computer, and
(G) means at the computer site responsive to any second message for
applying, to said first set of conductors, binary voltage signals which,
in said predetermined code, correspond to a desired switch,
whereby both instruction and data words may be sent to and from said
computer from and to said home base with (i) entry into and (ii) exit out
of said computer being made via (i) said first set of conductors and (ii)
said second set of conductors.
3. In a system for remotely diagnosing or operating a digital computer
located at a given site which is remote from a home base via a telephone
link,
(A) said computer including a machine-language console having
(1) a first set of switches corresponding to the respective bits of a word
as it is signaled on the bus and in the memory of the computer,
(2) a first set of lamps corresponding to the respective bits of a word,
(3) a second set of function switches, and
(4) a second set of lamps corresponding respectively to said function
switches,
(B) said computer including an interface between said console and the
remaining portions of the computer, said remaining portions including a
control unit, arithmetic unit, memory, bus and address trunk, said
interface including
(1) a first register S,
(2) a second register F,
(3) a third register DA, and
(4) gating connections to the computer bus and control unit,
(C) said computer further including
(1) a first plurality of conductors extending between said first and second
sets of switches and said interface by which closure of any switch is
uniquely signaled to the interface,
(2) a second plurality of conductors by which the contents of said S and F
registers cause energization of the corresponding ones of the first and
second sets of lamps to display the contents of such registers,
(3) means for transferring via said first conductors into said S register
bit signals corresponding to closures of said first set of switches, such
closures then being displayed by said first set of lamps,
(4) means for transferring into said F register bit signals corresponding
to closures of said second set of switches, such closures then being
displayed by said second set of lamps,
(5) means responsive to certain function signals from said F register for
transferring to said register DA the contents of said register S,
(6) means responsive to certain other function signals for transferring to
said register S the contents of a computer memory word whose address is
represented by the contents of said register DA, such memory word contents
then being displayed by said first set of lamps,
(7) means responsive to still other function signals for transferring to
the computer memory storage word, whose address is represented by the
contents of said register DA, the contents of said register S,
whereby binary word information in any computer memory address location may
be brought to display on said first set of lamps and the binary word
information in any computer memory address location may be changed to
agree with that fed in by manipulation of said first set of switches,
(D) a microcomputer having an input/output interface forming words of
memory with connections constituting bits of such words to
(1) said first plurality of conductors treated as output bits,
(2) said second plurality of conductors treated as input bits,
(E) said microcomputer including an instruction memory section, a data
memory section, a micro-processor with a control unit, a universal
asynchronous receiver-transmitter having an input line and output line, a
main clock and a baud rate clock, said instruction memory section being
physically conditioned by a stored program to constitute said
microcomputer to include
(1) means for periodically feeding to the output line of said
receiver-transmitter a message pulse train having serial time locations
corresponding to the respective ones of said second plurality of
conductors and having at each time location a binary 1 or 0 level agreeing
with the binary 1 or 0 signal on that corresponding conductor, and
(2) means for differently responding to different message pulse trains
arriving at the input line of said receiver-transmitter, and which
according to a pre-established code correspond to and represent respective
ones of said switches,
(a) said means for responding including means responsive to a received
pulse train for applying to said first plurality of conductors binary
level signals which produce the same effect in said computer as if the
switch, corresponding to that received train, had been closed,
(F) means at the computer side and at home base for connecting to a
telephone transmission line extending between the site and the base, said
last-named means including
(1) means for transmitting from said site to said home base the message
pulse trains appearing on said receiver-transmitter output line,
(2) means for transmitting to said receiver-transmitter input line message
pulse trains originating at said home base, and
(G) means at said home base for generating message serial pulse trains
which by binary levels at time locations therein according to said
pre-established code, represent different ones of said switches whose
effective actuation is desired.
4. In a system for entering information into and taking information from a
digital computer by intelligence transmission over two channels, the
combination comprising
(A) a digital computer located at a given site and including a clock,
control unit, arithmetic unit, memory, and system bus,
(B) said computer further including and being characterized by
(1) a console and console interface for entering information in machine
language and displaying information from various computer locations in
machine language, said console and interface comprising
(a) a first plurality of switches for entry of word and function signals
sequentially one bit at a time, and
(b) a first plurality of bit indicators associated with respective ones of
said switches,
(C) said computer and interface together constituting
(1) means responsive to actuation of said switches for setting up any
desired binary word and therafter transferring said word to different
memory locations or registers within the computer,
(2) means for supplying to said indicators binary bit voltages to turn the
indicators on or off according to the bit values of a selected word within
the computer,
(D) means coupled to said first indicators and responsive to the bit
voltages applied thereto for periodically creating in sequence time
serialized first message pulse trains with time locations each having a
binary value corresponding to the state of one of said indicators,
(E) a reflective console located at a home base remote from said computer
site and including
(1) a second plurality of switches which respectively correspond to
different ones of said first plurality of switches,
(2) a second plurality of bit indicators associated with respective ones of
said second switches and which respectively correspond to different ones
of said first plurality of indicators,
(F) means at said base and responsive to the actuation of any of said
second plurality of switches for creating a time serialized second message
pulse train formed according to a predetermined code so that any train
uniquely represents the particular switch actuated,
(G) a two channel communications link for simultaneously transmitting (i)
the message pulse trains created by said means (D) to said base, and (ii)
the pulse trains created by said means (F) to said computer site,
(H) means at said computer site responsive to said second message trains
and coupled to said first plurality of switches for creating in said
computer console the same signals as if that one of the first switches,
corresponding to the code of a received second message pulse train, had
been actuated, and
(I) means at said home base and responsive to said first message trains for
exciting those ones of said second indicators which correspond to the
binary 1's in a received first message train,
whereby said reflective console may be manipulated and observed by a
technician at said base with the same effect as if he were at the computer
console to manipulate and observe the latter.
5. In a system for operating or diagnosing a digital computer from a home
base displaced from the computer site, the combination comprising
(A) a computer including memory for instruction and data words, a control
unit, an arithmetic unit, a system bus, and a machine language console;
said console having
(1) a first plurality of switches for manual entry of instruction, data and
address words in binary machine language,
(2) a first plurality of lamps excitable to display a word in binary
machine language,
(B) said computer further including
(1) a display register,
(2) means responsive to actuation of said switches to create successive
sets of binary signals on a first set of conductors, each set of signals
representing in a predetermined code the particular switch actuated,
(3) means for applying over a second set of conductors binary voltage
signals to said lamps to turn each lamp on or off according to the
presence of a 1 or 0 binary signal in a corresponding bit location of said
display register,
(4) means for entering into said display register a binary word
corresponding in its bits to the different sets of binary voltage signals
on said first conductors resulting from actuation of said switches,
(5) means responsive to certain signals produced by actuation of certain
ones of said switches for transferring the contents of said display
register to another register or memory location within the computer,
(6) means responsive to certain signals produced by actuation of certain
ones of said switches for transferring the contents of another register or
memory location within the computer to said display register,
(7) said means (5) and (6) being enabled or disabled by actuation of
function switches included within said plurality of switches,
(C) means at the computer site and the home base, adapted for
interconnection via a telephone link, to simultaneously send pulse train
messages in both directions,
(D) means connected to said second set of conductors for inputting to said
means (C) a first pulse train message periodically for transmission from
the computer site to the home base, each first pulse train containing
time-serial bits 0 and 1 value corresponding to the voltages on respective
ones of said second set of conductors,
(E) a reflective console located at said home base and having
(1) a second plurality of switches corresponding respectively to different
ones of said first plurality of switches,
(2) a second plurality of lamps, corresponding to different ones of said
first plurality of lamps,
(F) means at said home base and responsive to actuation of different ones
of said second switches for inputting to said means (C) a second pulse
train containing time-serial bits 0 and 1 value which uniquely designate,
according to a pre-established code, the particular actuated second
switch,
(G) means responsive to each first pulse train message received at said
home base, via said means (C), for turning on those ones of said second
plurality of lamps which correspond to those ones of said first plurality
of lamps then on, and
(H) means responsive to each second pulse train message received at said
computer site, via said means (C), for applying to said first set of
conductors binary signals representing, in said predetermined code, that
one of said first switches which corresponds to the one of the second
switches whose actuation initiated the received second pulse train
message,
whereby said reflective console may be manipulated and observed with the
same effect as if the computer console were manipulated and observed.
6. In a system for remotely diagnosing or operating a digital computer,
located at a given site which is remote from a home base, via a
two-channel communications link,
(A) said computer including a memory, a bus and a machine-language console
having
(1) a first set of switches corresponding to the respective bits of a word
as it is signaled on the bus and in the memory of the computer,
(2) a first set of lamps corresponding to the respective bits of a word,
(3) a second set of function switches, and
(4) a second set of lamps corresponding respectively to said function
switches,
(B) said computer including an interface between said main console and the
remaining portions of the computer, said remaining portions including a
control unit, arithmetic unit, memory, bus and address trunk, said
interface including
(1) a first register S,
(2) a second register F,
(3) a third register DA, and
(4) gating connections to the computer bus and control unit,
(C) said computer further including
(1) a first plurality of conductors extending between said first and second
sets of switches and said interface by which closure of any switch is
uniquely signaled to the interface,
(2) a second plurality of conductors by which the contents of said S and F
registers cause energization of the corresponding ones of the first and
second sets of lamps to display the contents of such registers,
(3) means for transferring via said first conductors into said S register
bit signals corresponding to closures of said first set of switches, such
closures then being displayed by said first set of lamps,
(4) means for transferring into said F register bit signals corresponding
to closures of said second set of switches, such closures then being
displayed by said second set of lamps,
(5) means responsive to certain function signals from said F register for
transferring to said register DA the contents of said register S,
(6) means responsive to certain other function signals for transferring to
said register S the contents of a computer memory word whose address is
represented by the contents of said register DA, such memory word contents
then being displayed by said first set of lamps,
(7) means responsive to still other function signals for transferring to
the computer memory storage word, whose address is represented by the
contents of said register DA, the contents of said register S,
whereby binary word information in any computer memory address location may
be brought to display on said first set of lamps and the binary word
information in any computer memory address location may be changed to
agree with that fed in by manipulation of said first set of switches,
(D) a microcomputer having an input-output interface forming words of
memory with connections, constituting bits of such words, to
(1) said first plurality of conductors treated as output bits,
(2) said second plurality of conductors treated as input bits,
(E) said microcomputer including an instruction memory section, a data
memory section, a micro-processor with a control unit, a universal
asynchronous receiver-transmitter having an input line and an output line,
a main clock and a baud rate clock, with said instruction memory section
being physically conditioned by a stored program to constitute said
microcomputer to include
(1) means for periodically feeding to said output line a first message
pulse train having serial time locations corresponding to the respective
ones of said second plurality of conductors and having at each time
location a binary 1 or 0 level agreeing with the binary 1 or 0 signal on
that corresponding conductor,
(F) a reflective console located at said home base and including
(1) a first reflective set of switches corresponding respectively to said
first main console switches (A)(1),
(2) a first reflective set of lamps corresponding respectively to said
first main console lamps (A)(2),
(3) a second reflective set of function switches corresponding respectively
to said second main console switches (A)(3),
(4) a second reflective set of lamps corresponding respectively to said
second main console lamps (A)(4),
(G) means at said home base responsive to the actuation of any of said
first and second reflective switches for creating a time serial second
message pulse train having binary 1's and 0's at different time locations
to represent uniquely, by a pre-established code, the particular actuated
switch,
(H) means for simultaneously transmitting over two communication channels
linking said computer site and home base any (i) first message pulse train
fed to said output line by said means (E)(1), and (ii) second message
pulse train created by said means (G),
(I) means at said home base responsive to a first message pulse train for
turning on those ones of said first and second reflective lamps which
correspond to those ones of said main console first and second lamps then
on, and
(J) said microcomputer further including means responsive to any second
message pulse train, received via said means (H) on said input line, for
applying to said first plurality of conductors binary level signals which
produce the same effect in said computer as if that one of the main
console switches, which corresponds to the particular reflective switch
represented by the code of the received second train, had been actuated.
7. In a system for sending information from a digital computer to a distant
home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
system bus, and memory for instruction and data words,
(B) said computer further including and being characterized by a machine
language console and console interface having a plurality of bit
indicators corresponding to the bits of a word,
(C) said computer and interface together constituting means for applying to
said indicators either of two voltage levels (1 or 0) to turn the
indicators on or off according to the bit values of a selected word within
the computer,
(D) means coupled to said indicators and responsive to the voltages applied
thereto for periodically creating in sequence time serialized message
pulse trains with respective time locations having a binary value
corresponding to the voltages on respective ones of said indicators,
(E) means for transmitting to the distant home base the pulse trains
created by said means (D), and
(F) means at said home base responsive to each pulse train for converting
the pulses thereof into a signaled binary word indicative of the states of
said indicators at that time,
whereby any binary word used to energize said indicators is dynamically
signaled at said home base as the word, or the selection of a word, is
changed.
8. In a system for sending information from a digital computer to a distant
home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
system bus, and memory for instruction and data words,
(B) said computer further including and being characterized by a
machine-language console and console interface having
(1) a first plurality of bit indicators corresponding to the bits of a
word,
(2) a plurality of switches corresponding to the bits of a word,
(C) said computer with its interface and instruction memory constituting
(1) means for applying to said first indicators either of two voltage
levels (1 or 0) to turn the indicators on or off according to the bit
values of a selected word within the computer,
(2) means responsive to actuation of said switches for applying to said
indicators a desired pattern of voltage levels (1 or 0) to turn the first
indicators on or off and set up a desired word displayed thereby,
(D) means coupled to said indicators and responsive to the voltage levels
applied thereto for periodically creating a time serialized message pulse
train with respective time locations having binary values corresponding to
the voltage levels on respective ones of said indicators,
(E) means for transmitting to the distant home base the pulse trains
created by said means (D),
(F) means at said home base responsive to each pulse train for converting
the pulses thereof into a signaled binary word indicative of the states of
said indicators at that time,
(G) a second plurality of indicators at said home base each corresponding
to one of said first indicators, and
(H) means for applying to said second indicators the bit signals of the
binary word signaled by said means (F),
whereby said second indicators monitor and reflect the display on said
first indicators.
9. The combination set forth in claim 8, further including means for
incrementing one unit at a time the address of a word selected to control
said means (C).
10. In a system for sending information from a digital computer to a
distant home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
system bus, and memory for instruction and data words,
(B) said computer further including and being characterized by a
machine-language console and console interface having
(1) a display register,
(2) a first plurality of indicators corresponding to the bits of a word,
(3) a plurality of conductors extending between the respective bit
locations of said register and said indicators to apply to the latter
either of two voltage levels (1 or 0) to turn the indicators on or off
according to the bit place values of a word in said register, and
(4) means for placing in said register any selected word within the
computer,
(C) a microcomputer having a plurality of memory bit input lines
respectively coupled to said conductors and containing an instruction
program by which it constitutes means for periodically sensing the voltage
levels on said conductors and for creating a serialized message pulse
train with respective time locations having binary values corresponding to
voltage levels on respective ones thereof,
(E) means for transmitting to said distant home base the pulse trains
created by said means (C),
(F) means at said home base responsive to each pulse train for converting
the pulses thereof into a signaled binary word indicative of the states of
said indicators at that time,
(G) a reflective console at said home base and having a plurality of second
indicators each corresponding to one of said first plurality of
indicators, and
(H) means for applying to said second indicators the bit signals of the
binary word signaled by said means (F),
whereby said second indicators monitor and reflect the display on said
first indicators.
11. In a system for entering information into a digital computer from a
distant home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
system bus, and memory for instruction and data words,
(B) said computer further including and being characterized by a machine
language console and console interfce with
(1) a plurality of switches for entry of word and function signals one bit
at a time,
(2) a plurality of conductors extending from said console to said
interface, and
(3) means responsive to actuation of any one of said switches for applying
to said conductors input signal sets which correspond uniquely to the
actuated switch in a predetermined code,
(C) means for transmitting from said home base to the site of said computer
signal messages which identify those of said switches whose successive
actuation is desired, and
(D) means responsive to said signal messages for applying to said
conductors input signal sets which, in said predetermined code, correspond
to those successive switches identified in the transmitted messages,
whereby the received messages produce the same effects as if the
corresponding ones of said switches were actuated.
12. In a system for entering information into a digital computer from a
distant home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
system bus, and memory for instruction and data words,
(B) said computer further including and being characterized by a
machine-language console and console interface having a plurality of
switches actuatable to set up in the computer values of respective bits of
a multibit word, with means responsive to the actuation of any one switch
for producing on a plurality of conductors a set of input signals uniquely
identifying that switch according to a predetermined code,
(C) means responsive differently to different time-spaced trains of pulses,
designating different successive ones of said switches according to a
pre-established code, for producing successive sets of input signals on
said plurality of conductors and representing the same ones of said
switches in said predetermined code, and
(D) means for transmitting from said home base to said means (C) trains of
time-spaced pulses representing in said pre-established code the
successive ones of said switches whose figurative actuation is desired,
whereby said computer responds to the transmitted trains of pulses as if
the switches represented by such trains were physically actuated.
13. In a system for entering information into a digital computer from a
distant home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
system bus and memory for instruction and data words,
(B) said computer further including and being characterized by a
machine-language console and console interface having a plurality of
switches selectively actuatable to set up in the computer the respective
bits of a multibit word, with means for creating a unique combination of
input signals on a plurality of conductors, according to a predetermined
code, in response to actuation of each switch,
(C) means responsive to received serialized pulse trains having pulses in
certain time locations thereof and which represent, in a pre-established
code, any one of said switches, for supplying to said plurality of
conductors a combination of input signals which correspond, in said
predetermined code, to the particular switch represented in the
pre-established code by the received pulse train, and
(D) means for transmitting from a distant home base to said means (C) a
serialized pulse train each time it is desired to produce in said computer
the same effect as the physical actuation of a certain one of said
switches, said transmitted pulse train representing in said
pre-established code the said certain one of said switches.
14. The combination set forth in claim 13 further characterized in that
said means (D) transmits said pulse train in the form of character groups
of pulse time locations, and by said pre-established code certain groups
identify any particular switch by the presence or absence of pulses in the
different time location combinations for the group.
15. The combination set forth in claim 13 further characterized in that
said means (D) transmits said pulse train in the form of character groups
of pulse time locations, each location by the presence or the absence of a
pulse therein calling for the artificial actuation or the lack of
artificial actuation of a different one of said switches, and said means
(C) includes means for producing input signals in response to the receipt
of each pulse, the input signals representing a particular one of said
switches which corresponds to the bit place of the time location of that
received pulse.
16. In a system for entering information into a digital computer from a
distant home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
memory and system bus,
(B) said computer further including and being characterized by a
machine-language console having a first plurality of switches for entry of
word and function signals one bit at a time, a plurality of conductors,
and means responsive to the actuation of each switch for producing a
unique combination of in-going signals on said plurality of conductors,
(C) means at said home base for transmitting to the computer site a group
of time spaced pulses which, by the coded combination of pulses in the
time locations of the group, identifies any one of said plurality of
switches, and
(D) means responsive to the receipt of a group of time-spaced pulses from
said means (C) for producing on said plurality of conductors a combination
of in-going signals corresponding to that one of said switches which is
identified by the coded combination of the received group of pulses.
17. In a system for entering information into a digital computer from a
distant home base, the combination comprising
(A) a digital computer including a clock, control unit, arithmetic unit,
memory and system bus,
(B) said computer further including and being characterized by a
machine-language console having a first plurality of switches for entry of
word and function signals one bit at a time, a plurality of conductors,
and means responsive to the actuation of each switch for producing a
unique combination of in-going signals on said plurality of conductors,
(C) a reflective console at said home base and having a second plurality of
switches each corresponding to one of said first switches,
(D) means at said home base, and responsive to actuation of any second
switch, for transmitting to the computer site a group of time spaced
pulses which, by the coded combination of pulses in the time locations of
the group, uniquely identifies the actuated second switch, and
(E) means responsive to the receipt of a group of time spaced pulses from
said means (D) for producing on said plurality of conductors a combination
of in-going signals corresponding to that one of said first switches whose
counterpart second switch is identified by the coded combination of the
received group of pulses.
18. In a system for operating or diagnosing a digital computer from a home
base displaced from the computer site, the combination comprising
(A) a computer including memory for instruction and data words, a control
unit, an arithmetic unit, a system bus, and a machine-language console;
said console having
(1) a first plurality of switches for manual entry of instructions, data,
and address words in binary machine language,
(B) said computer further including
(1) a display register,
(2) means responsive to actuation of said switches to create successive
sets of binary signals on a plurality of conductors, each set representing
in a predetermined code the particular switch actuated,
(3) means for entering into said display register a binary word
corresponding in its bits to the different sets of binary voltage signals
on said conductors resulting from actuation of said switches,
(4) means responsive to certain signals produced by actuation of certain
ones of said switches for transferring the contents of said display
register to another register or memory location within the computer,
(5) means responsive to certain signals produced by actuation of certain
ones of said switches for transferring the contents of another register or
memory location within the computer to said display register,
(C) means for sending pulse train messages from said home base to the
computer site,
(D) a reflective console located at said home base and having
(1) a second plurality of switches corresponding respectively to different
ones of said first plurality of switches,
(E) means | | |
