Basic
Electronics
Contents
S = Sound
TOC(Table
of Contents)
Chapt.1
Chapt.2
Chapt.3 S
Chapt.4 S
Chapt.5
Chapt.6A Chapt.6B
Chapt.7 S
Chapt.8
Chapt.9 S
Chapt.10
Chapt.11 S
Chapt.12 S
Chapt.13 S
Chapt. 14 S
Chapt. 15 S
Chapt. 16
Chapt. 17
Chapt.
18
Meter
Math
Troubleshooting
Principles
Directory
of Select Electronic Sites
Military
Electronics
Sound
Ranging
Weapons
Electrical
Energy
Cogeneration
HVDC
Chapter 14 Sound
Directions: Step through the program already prewritten below (First "Burn Prom" and "Load RAM") . It will demonstrate how this programmers model of a simple computer works. Next type in your own program (starting at address zero) over the existing program. Burn Prom and then load RAM with data you wish to operate on.
See or make copy of Instruction Set and SPECIFICATIONS.
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Microprocessor Lecture soundtrack at Talking Books
Text to speech file provides audible tutorial for this
chapter. Released 11-18-04
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Basic Computer Troubleshooting in: Electronic Troubleshooting.
(View Bottom of page before starting)
What Kind of Computer is this.
An experimental computer like this may have existed back in the early 1970's when hobbyists were making the first minicomputers consisting of basic LSI and MSI TTL circuitry, bipolar RAM, a few LED's and toggle switches to be used for input and output control. Back then ROMs could only be programmed by masking, thus programs were generally loaded into these simple solid state computers by hand.
This computer is a partial computer with respect to teaching fundamentals of machine language programming, computer troubleshooting and eventually interfacing. It can count up or down, add numbers and make decisions using a conditional jump statements. This computer lacks a Stack Pointer to support subroutines, but can jump to a routine and then jump back to a specific point in the main program. It also lacks a Negate instruction and the flags required for 2's compliment arithmetic.
This JavaScript computer is not exactly like any real computer. The single step feature and the ability to examine memory directly existed in mainframe computers but is not available on PC's or embedded microprocessors. Embedded microprocessors (with programs embedded on proms) operation must viewed on logic analyzers.
Even though this partial computer does not exactly resemble any computer in existence today, it still can be used to teach the following:
Single Step fault analysis
Machine Language Programming
Computer Interfacing
Applied Base Conversion
Memory Organization
Bad memory bit Isolation
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