UNT Libraries - 43 Matching Results

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open access

Design and Implementation of a TRAC Processor for Fairchild F24 Computer

Description: TRAC is a text-processing language for use with a reactive typewriter. The thesis describes the design and implementation of a TRAC processor for the Fairchild F24 computer. Chapter I introduces some text processing concepts, the TRAC operations, and the implementation procedures. Chapter II examines the history and -characteristics of the TRAC language. The next chapter specifies the TRAC syntax and primitive functions. Chapter IV covers the algorithms used by the processor. The last chapter d… more
Date: August 1974
Creator: Chi, Ping Ray
open access

Macro Control Structures for Structured Programming in ALC

Description: This thesis describes a set of computer program control structures which permits the application of certain structured programming techniques to the IBM/360 assembly language (ALC). The control structures are implemented by programmerdefined instructions known as macros. A history of computer software is presented, providing a basis for the emergence of structured programming. A survey of the major concepts of structured programming with special attention to control structures and their signifi… more
Date: December 1975
Creator: Connally, Kim G.
open access

A Distributed Logic Memory with Two-dimensional Access, as Applied to a Highly Parallel Processor

Description: Although more sophisticated designs of associative memories are not yet economically practical, with the dynamic advances in integrated circuitry currently taking place, the day appears not long off for an economical sophisticated associative memory to become a reality. This describes a general outline of a sophisticated DLM, but it also describes the actual logic involved in a building a working model. The design process involves formulating a set of commands sufficient to perform the desired … more
Date: May 1976
Creator: Redwine, William V.
open access

Computerized Analysis of Radiograph Images of Embedded Objects as Applied to Bone Location and Mineral Content Measurement

Description: This investigation dealt with locating and measuring x-ray absorption of radiographic images. The methods developed provide a fast, accurate, minicomputer control, for analysis of embedded objects. A PDP/8 computer system was interfaced with a Joyce Loebl 3CS Microdensitometer and a Leeds & Northrup Recorder. Proposed algorithms for bone location and data smoothing work on a twelve-bit minicomputer. Designs of a software control program and operational procedure are presented. The filter made w… more
Date: August 1976
Creator: Buckner, Richard L.
open access

An English and Arabic Character Printer

Description: This paper is presented in satisfaction of the requirement for two problems in lieu of thesis which are required for the degree, Master of Science. The two problems are: (1) to provide an electric interface between the M6800 microprocessor and the printer; and (2) to design an Arabic character set and to provide the logic required for its implementation. As it would be artificial and impractical to document these problems separately, a single document here is provided.
Date: December 1976
Creator: Abdel-Razzack, Malek G.
open access

The Applications of Regression Analysis in Auditing and Computer Systems

Description: This thesis describes regression analysis and shows how it can be used in account auditing and in computer system performance analysis. The study first introduces regression analysis techniques and statistics. Then, the use of regression analysis in auditing to detect "out of line" accounts and to determine audit sample size is discussed. These applications led to the concept of using regression analysis to predict job completion times in a computer system. The feasibility of this application o… more
Date: May 1977
Creator: Hubbard, Larry D.
open access

Simulation of the IBM System/7

Description: This thesis describes the simulation of the IBM SYSTEM/7. The research leading to this thesis involved the development of a PL/I computer program that runs on an IBM 360/50 computer and simulates the IBM SYSTEM/7. Various methods of simulation are examined and guidelines for computer simulation of another computer are established. The SYSTEM/7 simulator (SIM/7) is the heart of this thesis. SIM/7 simulates the IBM SYSTEM/7 entirely with software as opposed to an emulator which involves the combi… more
Date: May 1977
Creator: Lewis, Ted C.
open access

Design and Implementation of a PDP-8 Computer Assembler Executing on the IBM 360/50 Computer

Description: This problem is intended to be an introduction to the design of a software system which translates PDP-8 assembly language source into it's machine-readable object code. This assembler runs on the IBM 360/50. It is assumed that the reader is familiar with the basic PDP-8 assembly language. For the description and use of this assembler the reader is referred to the PAL-III SYMBOLIC ASSEMBLER PROGRAMMING MANUAL from DEC (order number DIGITAL 8-3-5, Digital Equipment Corporation: Maynard, Massachu… more
Date: August 1977
Creator: Madani, Ali
open access

Computer Analysis of Amino Acid Chromatography

Description: The problem with which this research was done was that of applying the IBM360 computer to the analysis of waveforms from a Beckman model 120C liquid chromatograph. Software to interpret these waveforms was written in the PLl language. For a control run, input to the computer consisted of a digital tape containing the raw results of the chromatograph run. Output consisted of several graphs and charts giving the results of the analysis. In addition, punched output was provided which gave the name… more
Date: May 1978
Creator: Hayes, Michael D.
open access

Software and Hardware Interface of a VOTRAX Terminal for the Fairchild F24 Computer

Description: VOTRAX is a commercially available voice synthesizer for use with a digital computer. This thesis describes the design and implementation of a VOTRAX terminal for use with the Fairchild F24 computer. Chapters of the thesis consider the audio response technology, some characteristics of Phonetic English Speech, configuration of hardware, and describe the PHONO computer program which was developed. The last chapter discusses the advantages of the VOTRAX voice synthesizer and proposes a future ver… more
Date: May 1979
Creator: Wu, Chun Hsiang
open access

The Design of Microcomputer-Based Sound Synthesis Hardware

Description: Microcomputer-based music synthesis hardware is being developed at North Texas State University (NTSU). The work described in this paper continues this effort to develop hardware designs for inexpensive, but good quality, sound synthesizers. In order to pursue their activities, researchers in computer assisted instruction in music theory, psychoacoustics, and music composition need quality sound sources. The ultimate goal of my research is to develop good quality sound synthesis hardware which … more
Date: May 1980
Creator: Hamilton, Richard L.
open access

An On-Line Macro Processor for the Motorola 6800 Microprocessor

Description: The first chapter discusses the concept of macros: its definition, structure, usage, design goals, and the related prior work. This thesis principally concerns my work on OLMP (an On-Line Macro Processor for the Motorola 6800 Microprocessor), which is a macro processor which interacts with the user. It takes Motorola assembler source code and macro definitions as its input; after the appropriate editing and expansions, it outputs the expanded assembler source statements. The functional objectiv… more
Date: May 1980
Creator: Hsieh, Chang-Boe
open access

An Implementation of the IEEE Standard for Binary Floating-Point Arithmetic for the Motorola 6809 Microprocessor

Description: This thesis describes a software implementation of the IEEE Floating-Point Standard (IEEE Task P754), which is believed to be an effective system for reliable, accurate computer arithmetic. The standard is implemented as a set of procedures written in Motorola 6809 assembly language. Source listings of the procedures are contained in appendices.
Date: August 1983
Creator: Rosenblum, David Samuel
open access

The NTSU School of Music Practice Room Scheduling System

Description: This is a report concerning the project I completed for my 590 (special problem) credit. The subject of this project was a system for interactive practice room scheduling by music students at NTSU. This system was created in the fall semester of 1982 as a class project for software Development (CSCI 553) with Dr. Irby. The system was not completely finished, and I received permission from Dr. Irby to finish it and help implement its use at the Music department. I was able to observe three usag… more
Date: August 1983
Creator: Reed, Susan C.
open access

Development of a Text Formatted Under VAX/VMS Operating System

Description: No matter how extended the use of the computer is, the printed document is still the primary medium for the presentation information, and will continue to be for some time. The use of computing facilities for preparation and production of the document is becoming as prevalent as their use for numeric computation. Commercially, document preparation systems are now a standard facility at research institution, and they have become quite common on each computer program. A conventional document prep… more
Date: March 1984
Creator: Chow, Perng
open access

ADA Tasking Facilities for Concurrent and Real-Time Programming

Description: This paper describes multitasking facilities of Ada in concurrent and real-time programming. Synchronization and process communication mechanisms are discussed in detail, also, a new mechanism to solve the scheduling problem is developed. In the concurrent programming aspect, a comparison is made between Ada's rendezvous and Pascal's Monitor concept. In the real-time programming aspect, the differences between the Ada multitasking and the traditional "cyclic executive approaches are contrasted … more
Date: April 1984
Creator: Chang, Ming-Chu
open access

A Tool for Measuring the Size, Structure and Complexity of Software

Description: The problem addressed by this thesis is the need for a software measurement tool that enforces a uniform measurement algorithm on several programming languages. The introductory chapter discusses the concern for software measurement and provides background for the specific models and metrics that are studied. A multilingual software measurement tool is then introduced, that analyzes programs written in Ada, C, Pascal, or PL/I, and quantifies over thirty different program attributes. Metrics com… more
Date: May 1984
Creator: Versaw, Larry
open access

Design and Implementation of a Parser for the DBase II Query Language

Description: In this paper the DBase II query language of an RDBMS for personal computers is discussed. Other languages will be provided by large and sophisticated DBMS will not be discussed here. The reason for selecting the DBase II query language for discussion are as follows: 1. It is a simple language that can be learned easily [TOWN 84, DINE 84]. Within a short period, users can learn all of the facilities and manage the system very well. 2. It is a language suitable for interactive programming and ex… more
Date: December 1985
Creator: Chan, Kin Pong
open access

Graphical Simulation of Sorting Methods

Description: In this paper, five different sorting methods will be discussed. Each method will be analyzed and discussed in detail pointing out its efficiency, weaknesses, powerfullness, and the appropriate type of applications. The different methods are represented graphically using Turbo Pascal where one pass is performed in each method at a time. The methods discussed in this project are, Bubble Sort, Quick Sort, Heap Sort, Shell Sort, and Double Selection Sort. The latter is a new method that I modified… more
Date: August 1986
Creator: Saed, Mazen A.
open access

A Comparative Analysis of Guided vs. Query-Based Intelligent Tutoring Systems (ITS) Using a Class-Entity-Relationship-Attribute (CERA) Knowledge Base

Description: One of the greatest problems facing researchers in the sub field of Artificial Intelligence known as Intelligent Tutoring Systems (ITS) is the selection of a knowledge base designs that will facilitate the modification of the knowledge base. The Class-Entity-Relationship-Attribute (CERA), proposed by R. P. Brazile, holds certain promise as a more generic knowledge base design framework upon which can be built robust and efficient ITS. This study has a twofold purpose. The first is to demonstrat… more
Date: August 1987
Creator: Hall, Douglas Lee
open access

Speech Recognition Using a Synthesized Codebook

Description: Speech sounds generated by a simple waveform synthesizer were used to create a vector quantization codebook for use in speech recognition. Recognition was tested over the TI-20 isolated word data base using a conventional DTW matching algorithm. Input speech was band limited to 300 - 3300 Hz, then passed through the Scott Instruments Corp. Coretechs process, implemented on a VET3 speech terminal, to create the speech representation for matching. Synthesized sounds were processed in software by … more
Date: August 1988
Creator: Smith, Lloyd A. (Lloyd Allen)
open access

Improving Digital Circuit Simulation: A Knowledge-Based Approach

Description: This project focuses on a prototype system architecture which integrates features of an event-driven gate-level simulator and features of the multiple expert system architecture, HEARSAY-II. Combining artificial intelligence and simulation techniques, a knowledge-based simulator was designed and constructed to model non-standard circuit behavior. This non-standard circuit behavior is amplified by advances in integrated circuit technology. Currently available digital circuit simulators can not s… more
Date: August 1989
Creator: Benavides, John A. (John Anthony)
open access

A Real-Time Merging-Buffering Technique for MIDI Messages

Description: A powerful and efficient algorithm has been designed to deal with the critical timing problem of the MIDI messages. This algorithm can convert note events stored in a natural way to MIDI messages dynamically. Only limited memory space (the buffer) is required to finish the conversion work, and the size of the buffer is independent of the size of the original sequence (notes). This algorithm's real-time variable properties suggest not only the flexible real-time controls in the use of musical as… more
Date: December 1991
Creator: Chang, Kuo-Lung
open access

A Mechanism for Facilitating Temporal Reasoning in Discrete Event Simulation

Description: This research establishes the feasibility and potential utility of a software mechanism which employs artificial intelligence techniques to enhance the capabilities of standard discrete event simulators. As background, current methods of integrating artificial intelligence with simulation and relevant research are briefly reviewed.
Date: May 1992
Creator: Legge, Gaynor W.
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