Hohmann, Jere W.
Person
Found in 6 Collections and/or Records:
A simulation of the IHAS-4 computer, 1971
Item — Multiple Containers
Identifier: b2087735
Abstract
This thesis develops an Algol computer model (simulator) of the IHAS-4 airborne digital computer. The simulator is used as a tool in debugging machine language computer programs and in evaluating the relative efficiency of computer hardware alternatives in meeting requirements based upon relative speed and memory specifications.
The simulator consists of a memory, an input/output section, a set of routines corresponding to the set of instructions for the IHAS-4 computer, and a...
Dates:
1971
Data flow between a central processor and a peripheral device, 1972
Item — Call number MU Thesis Bar
Identifier: b2088645
Abstract
A substantial portion of the typical digital computer is concerned with the transfer of data between the central processor and a variety of peripheral equipment. The intent of this project is to design and build the circuitry required for a particular interface, that is, between a Honeywell DDP-24 central processor and an Uptime punch card. A design for this combination is not known to exist and would be of value.
This project concerns a specific computer and a specific peripheral...
Dates:
1972
Diode function generator synthesis, 1971
Item — Multiple Containers
Identifier: b2087713
Abstract
A method is presented in this paper to synthesize a diode function generator network using digital computer techniques. The general algorithm is valid for a transfer function, F(X), having a monotonic increasing first derivative over the range of X. The synthesis algorithm accounts for the non-linear diode characteristics during the computation of network values.
The synthesis program requires that the following diode function generator parameters be specified by the designer as...
Dates:
1971
Error detection and correction in digital data communication, 1972
Item — Multiple Containers
Identifier: b2088519
Abstract
This thesis develops different types of circuits which can be implemented to provide a method to detect and correct errors in digital data on a T1 type communication line. The characteristics of the T1 communication line and the signal sent on the line are described. Errors in the transmitted signal can occur on this line and the types and sources of these errors are discussed. The following are described and discussed in detail:
1) The...
Dates:
1972
FBOS : a foreground/background operating system, 1972
Item — Multiple Containers
Identifier: b2088486
Abstract
A batch operating system is converted to a Foreground/Background Operating System (FBOS) for use on a Varian 620/f Minicomputer system. Entry to port #1 (the foreground) is via an interrupt generating graphics console facilitating user interaction with computer applications software packages. Port #2 (the background) is the entry to the batch operating system.
Although the system which is developed supports a specific graphics console (Information Displays Inc. - Idiom 1.2) and a...
Dates:
1972
The study and design of an electronic analog multiplier, 1971
Item — Multiple Containers
Identifier: b2087736
Abstract
This work will pursue the study of an electronic analog multiplier such as those commonly employed in analog computers. This particular multiplier uses the well known logarithmic characteristic of PN junctions together with the highly popular operational amplifier. The multiplier being considered employs a somewhat unique approach to obtain four quadrant operation and various correction means to improve multiplier accuracy.
The multiplier, as now envisioned, uses four logarithmic...
Dates:
1971
Additional filters:
- Subject
- ALGOL (Computer program language) 1
- Algorithms -- Computer programs 1
- Algorithms -- Design 1
- Analog multipliers 1
- Computer peripherals 1
- Computer programs -- Simulation methods 1
- Computer simulation 1
- Computers 1
- Diodes 1
- Electronic analog computers -- Circuits 1
- Error-correcting codes (Information theory) 1
- Interface circuits -- Design and construction 1
- Microcomputers -- Programming 1
- Monte Carlo method 1
- Navigation computer (Aeronautical instrument) 1
- Newton-Raphson method 1
- Operating systems (Computers) -- Design 1
- Operating systems (Computers) -- Evaluation 1
- Operating systems (Computers) -- Software 1
- Punched card systems 1
- Signal integrity (Electronics) 1
- Signal processing -- Digital techniques 1
- T1 (Telecommunication lines) 1 + ∧ less
∨ more