Scott J. Clark But How Do It Know - The Basic Principles of Computers for Everyone

Copyright 2009 by John Clark ScottComputer design incorporated herein
Copyright 2009 by John Clark ScottAll Rights ReservedPublished by John C. Scott, Oldsmar, FL
34677ISBN: 978-0-615-30376-5buthowdoitknow.comCover art, photography and design by Alexander C. Scott
III
artbyalexscott.comPrinted in the United States of AmericaFirst Edition : July 200910 9 8 7 6 5 4 3 2 1Just the Facts Ma’am
Speed
Language
Just a Little Bit
What the…?
Simple Variations
Diagrams
Remember When
What Can We Do With A Bit?
A Rose by Any Other Name
Eight Is Enough
Codes
Back to the Byte
The Magic Bus
More Gate Combinations
First Half of the Computer
Numbers
Addresses
The Other Half of the Computer
More Gates
Messing with Bytes
The Left and Right Shifters
The NOTter
The ANDer
The ORer
The Exclusive ORer
The Adder
The Comparator and Zero
Logic
The Arithmetic and Logic Unit
More of the Processor
The Clock
Doing Something Useful
Step by Step
Everything’s Under Control
Doing Something Useful, Revisited
What’s Next?
The First Great Invention
Instructions
The Arithmetic or Logic Instruction
The Load and Store Instructions
The Data Instruction
The Second Great Invention
Another Way to Jump
The Third Great Invention
The Clear Flags Instruction
Ta Daa!
A Few More Words on Arithmetic
The Outside World
The Keyboard
The Display Screen
Another Code
The Final Word on Codes
The Disk
Excuse Me Ma’am
That’s All Folks
Hardware and Software
Programs
The Operating System
Languages
The File System
Errors
Computer Diseases?
Firmware
Boots
Digital vs. Analog
I Lied – Sort of
Full Disclosure
Philosophy