Teletype terminal

The computer program (TGPL78) is written to extract the copper, tin, and lead values for individual objects from a data file, to normalize the values, and to plot them on a modified teletype terminal. Details of the program can be seen in the Appendixes I-V. Various plotting parameters, such as the computation and plotting of centroids, partitioning of symbols, normalization procedure, and labeling of individual points can be adjusted by the operator. 

The term "The Data Analyzer" In Figure 9 refers to a very efficient FORTRAN-based software package marketed by Program Products, Inc., Nanuet, New York. It Is used for nearly all the custom programs. Operations are mostly In batch mode, although there Is a teletype terminal, which Is suitable for subsets of the master file and for some smaller, accessory files. 

The earliest system which allowed substructure searching involving chemical connectivity input and structure display, was the National Institutes of Health/ Environmental Protection Agency Chemical Information System, the NIH/EPA CIS 14). Its Structure and Nomenclature Search System (SANSS) eventually allowed access to a large range of public data bases. The system allowed access from teletype terminals and was not graphics-based. 

There are two primary definitions for the term Network. One definition for a network describes a few computers with lots of terminals. Such installations frequently have grown from a batch environment with a large central mainframe computer to which terminals have been added. The term data communications is used to describe terminal (or terminal like) communications between the terminal and host. This is perhaps the most mature communications area. It was developed initially to support Teletype Equipment over telephone lines. 

All functions of the SECS program can also be invoked from a teletype device or alphanumeric CRT terminal. Structural input of 1 from the teletype is illustrated by the dialog in Figure 2. 

Video screen terminals were not widely available in 1964. The only alternative was the Teletype Model 33. It typed in uppercase only and was very slow—10 characters per second. The line numbers of a BASIC program allowed users to change the program without retyping the entire program they needed merely to retype the corrected line, including the line number. 

The scientists who developed the early computers in the 1950 s recognized the advantage of connecting computing devices. Teletype machines were in common use at that time, and many of the early computers were networked with these teletype machines over wired networks. By 1960, American Telephone and Telegraph (AT T) had developed the first modem to allow terminal access to mainframes, and in 1964, IBM and American Airlines... 

TTY teletype, term for telex machine, often used in connection with -> terminal. 

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