2. A data terminal system as defined in claim 1, further including: master register means for storing data, said master register means having a plurality of data storage elements each with an input and an output; at least one code converting logic network having inputs and outputs, said logic network having its inputs connected in parallel with the outputs of said storage elements of said register means and its outputs connected in parallel with the inputs of said storage elements at a particular sync time to convert the Code in said register means at the particular sync time.

3. A data terminal system as defined in claim 2, wherein said data input means includes: a keyboard section of a type head electric typewriter which produces the actuation of a set of mechanical elements in accordance with a predetermined character code in response to the depression of the character keys of said keyboard section; and a set of switches operatively connected to said set of mechanical elements said switches generating said coded signals in response to actuation of said set of mechanical elements.

4. A data terminal system as defined in claim 3, wherein said data output means includes: a plurality of solenoids connected to the print mechanism of a type head electric typewriter, said solenoids being selectively activated in accordance with said print code to operate said print mechanism to print particular characters.

5. A data terminal system as defined in claim 1, further including: master register means for storing data, said master register means having a plurality of data storage elements each with an input and an output; and a plurality of code converting logic networks each having its inputs connected in parallel to the outputs of said storage elements of said register means, the outputs of each of said logic networks being connected in parallel to the inputs of said storage elements at particular sequential sync times in accordance with the selective enabling of said mode selecting means for a particular line code.

6. A data terminal system as defined in claim 5, including: a keyboard section of a type head electric typewriter; function encoding network means connected to the function keys of the typewriter for generating a predetermined function code in response to depression of a function key, said function code being stored in said master register means at a particular sync time in said timing sequence; and reset means connected to said function encoding network means and said control means for resetting said timing sequence following the transmitting of said line code to the communications line.

7. A data terminal system as defined in claim 6, wherein: said data input means includes; a keyboard section of a type head electric typewriter which produces the actuation of a set of mechanical elements in accordance with a predetermined character code in response to the depression of the character keys of said keyboard section; and a set of switches operatively connected to said set of mechanical elements, said switches generating said coded signals in response to actuation of said set of mechanical elements; and said data output means includes; a plurality of solenoids connected to the print mechanism of a type head electric typewriter, said solenoids being selectively activated in accordance with said print code to operate said print mechanism to print particular characters.

8. A data terminal system as defined in claim 5, including: transmission line input-output means for interfacing said terminal system with the line, said line input-output means having buffer memory means for storage of data received from the line; and wherein said control means includes means for reading data into said master register means, when said register means is inactive, and thereafter enabling only those sync times of said timing sequence which convert said line code to said print code.

9. A data terminal system as defined in claim 8, including: a plurality of function electromechanical actuators connected to the outputs of said storage elements of said master register; and function decoding network means having input connected to the outputs of said storage elements of said master register for converting a function code to a single function signal at its outputs for connection to the inputs of said storage elements to condition only one of said storage elements to actuate one of said function electromechaniCal actuators at a particular sync time of said timing sequence.

10. A data terminal system as defined in claim 9, including: a keyboard section of a type head electric typewriter; function encoding network means connected to the function keys of the typewriter for generating a predetermined function code in response to depression of a function key, said function code being stored in said master register means at a particular sync time in said timing sequence; and reset means connected to said function encoding network means, and said control means for resetting said timing sequence following the transmitting of said line code to the communications line.

11. A data terminal system as defined in claim 10, wherein: said data input means includes; a keyboard section of a type head electric typewriter which produces the actuation of a set of mechanical elements in accordance with a predetermined character code in response to the depression of the character keys of said keyboard section; and a set of switches operatively connected to said set of mechanical elements, said switches generating said coded signals in response to actuation of said set of mechanical elements; and said data output means includes; a plurality of solenoids connected to the print mechanism of a type head electric typewriter, said solenoids being selectively activated in accordance with said print code to operate said print mechanism to print particular characters.

12. A data terminal system as defined in claim 11, wherein: said function electromechanical actuators are solenoids having their armatures connected substantially in parallel with the associated function keys of said typewriter.

13. A data terminal system as defined in claim 5, wherein: said data input means for generating coded signals includes the keyboard section of a type head electric typewriter in which the depression of each character key causes the actuation of a set of mechanical elements in accordance with a predetermined character code and a set of switches operatively connected to said set of mechanical elements, said switches being operated in response to actuation of said set of mechanical elements in said predetermined character code; said data output means includes a plurality of solenoids connected to the print mechanism of a type head electric typewriter, said solenoids being selectively activated said print code to print a particular character; a master register having a plurality of logical memory elements, said memory elements being of delay-memory type in which the outputs of said memory elements corresponds to the state of the input to said memory elements following the clocking of said memory element; a plurality of code converting logic networks each having an input and an output; and a control means for first connecting each of said switches to a respective input to a logical memory element of said register means, thereafter connecting said outputs of said memory elements in parallel with the inputs of one of said plurality of code converting logic networks and concurrently connecting the outputs of said one of said networks in parallel with said inputs to said memory elements of said register means to convert said electric signals of said switches to a preselected line code, said control means thereafter initiating the transmitting of said line code over a transmission line, said control means thereafter connecting the outputs of said memory elements of said register means in parallel with said inputs to another of said plurality of logic networks and concurrently connecting said outputs of said another logic network in parallel with said inputs of said memory elements to convert said line code to said print code, said control means thereafter connecting said outputs of said memory elements of said register means to a plurality of buffering amplifiers, said amplifiers being connected to respective first terminals of said solenoids, sAid control means thereafter supplying power to respective second terminals of said solenoids to print a character.

17. The method of claim 16, including: making code conversions by parallel gating of the master register flip-flops through code converting logic networks and said transmitting of said line code is made by serial gating of said flip-flops.