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Computer Organization
and Architecture
Chapter 1 - (UNIT-1)Introduction
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Architecture & Organization 1
Architecture is those attributes visible to theprogrammer
Instruction set, number of bits used for datarepresentation, I/O mechanisms, addressingtechniques.
e.g. Is there a multiply instruction?
Organization is how features are implemented
Control signals, interfaces, memory technology.
e.g. Is there a hardware multiply unit or is it done byrepeated addition?
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Architecture & Organization 2
All Intel x86 family share the same basicarchitecture
The IBM System/370 family share the samebasic architecture
This gives code compatibility
At least backwards
Organization differs between different versions
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Structure & Function
Structure is the way in which components relateto each other
Function is the operation of individualcomponents as part of the structure
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Function
All computer functions are:
Data processing
Data storage
Data movement
Control
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Functional view
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Operations (1) Data movement
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Operations (2) Storage
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Operation (3) Processing from/to storage
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Operation (4)
Processing from storage to I/O
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Structure - Top Level
Computer
MainMemory
Input
Output
Systems
Interconnection
Peripherals
Communication
lines
CentralProcessing
Unit
Computer
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Structure - The CPU
Computer ArithmeticandLogin Unit
Control
Unit
Internal CPU
Interconnection
Registers
CPU
I/O
Memory
System
Bus
CPU
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Structure - The Control Unit
CPU
Control
Memory
Control Unit
Registers and
Decoders
Sequencing
Login
Control
Unit
ALU
Registers
Internal
Bus
Control Unit
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Outline of the Book (1)
Computer Evolution and Performance
Computer Interconnection Structures
Internal Memory
External Memory
Input/Output
Operating Systems Support
Computer Arithmetic
Instruction Sets
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Outline of the Book (2)
CPU Structure and Function
Reduced Instruction Set Computers
Superscalar Processors
Control Unit Operation
Microprogrammed Control
Multiprocessors and Vector Processing
Digital Logic (Appendix)
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Internet Resources
- Web site for book
http://WilliamStallings.com/COA6e.html
links to sites of interest
links to sites for courses that use the book
errata list for book
information on other books by W. Stallings
http://WilliamStallings.com/StudentSupport.html
Math
How-to
Research resources
Misc
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Internet Resources
- Web sites to look for
WWW Computer Architecture Home Page
CPU Info Center
ACM Special Interest Group on ComputerArchitecture
IEEE Technical Committee on ComputerArchitecture
Intel Technology Journal
Manufacturers sitesIntel, IBM, etc.
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Internet Resources
- Usenet News Groups
comp.arch
comp.arch.arithmetic
comp.arch.storage
comp.parallel
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