Programming languages (Electronic computers)

This thesis describes a software model of a Linear Predictive Coding (L.P.C.) that is written in the Ada language. The novel feature of this program is that it attempts to execute the maximum possible number of concurrent arithmetic operations in the L.P.C. algorithm. Each arithmetic operation is implemented by an active process which is the "task" construct in the Ada language. The computational part of the algorithm is implemented as a wavefront array of computing tasks. These computational arrays are driven by a driver task which coordinates the flow of data into and out of the computing surfaces. If the inter process communications time between tasks is small, then this model shows a potential for speed-up. If this be the case, one may conclude that this model is an appropriate implementation for a linear predictive coding.

The object of this reaearch is to define and implement
an experimental language, Tutorial Programming Language
(TPL). Basic language concepts and definitions are introduced
initially to provide the background for defining TPL, which
is intended as a means to illustrate language concepts, and
has Type-3 grammar as a data type. A formal definition of
TPL is given in the form of an SLR(1) grammar. TPL is implemented by a syntax directed compiler and a
hypothetical machine for which the compiler provides code.
The machine is emulated by a Pascal program, making TPL
highly portable. It is also possible for the interested
user to enhance the power of TPL by writing more functions
for practical purposes.

This thesis was prepared as an introductory text in business systems
simulation using the General Purpose Simulation System/360 computer
programming language. The material requires no background in computer
programming or simulation. A knowledge of elementary probability and
statistics and a course in operations research would be prerequisites.
A number of examples illustrate an approach to simulation problems
and the use of the computer language.