a. Accepting digital data from external devices and storing it in computer memory.
b. Preliminary processing of incoming data, on-line, before storage. This usually involves only operations of logic and simple arithmetic.
c. Controlling the presentation of data via cathode-ray oscilloscope or typewriter, often for the purpose of monitoring the progress of an experiment.
d. Controlling the recording of digital data on magnetic tape, paper tape, or other storage medium.
e. Controlling an incremental plotter.
f. Controlling the output of large quantities of data via a line printer.
g. Transmission of quantities of data between two computers or between a computer and a pulse-height analyzer or other device having a magnetic core memory.
Several operations of intermediate complexity we will label Class 2.
Class 2 operations:
a. Processing of data already accumulated and stored either in memory or on tape or other medium (off-line processing). This data reduction is often more complicated and lengthy than the preliminary on-line processing referred to in (Class 1b).