Origins of Computing – Post 1900 Raj Reddy

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Origins of Computing Post 1900 Raj Reddy Carnegie Mellon University Jan 16, 2013 rrcmu.edu 15-346 Schedule of Presentations Spring 2013 Jan 14 Raj Reddy Origins of Computers I Pre 1900 Jan 16 Raj Reddy Origins of Computers II Post

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Origins of Computing – Post 1900 Raj Reddy
Carnegie Mellon University
Jan 16, 2013
rr@cmu.edu<br>
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15-346 Schedule of Presentations Spring 2013 Jan 14 Raj Reddy Origins of Computers I – Pre 1900
Jan 16 Raj Reddy Origins of Computers II– Post 1900
Jan 21 Chuck Thacker Computer Architecture in the 20th century
Jan 23 Chuck Thacker Computer Architecture in the 21st century
Jan 28 & 30 Majd Sakr Fetch & Execute, Pipelining & IL Parallelism
Feb 4 M Hammoud The Memory Hierarchy
Feb 6 M Hammoud Multicore Challenges
Feb 11 & 13 Gordon Bell Architectures from Digestible to the Largest
Feb 18 (VC) Dan Siewiorek Mobile Hardware Technologies
Feb 20 (VC) Dan Siewiorek End-to-End Application Considerations
Feb 25 & 27 Student Presentations<br>
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Necessary Conditions for The Evolution of Computers Representation of Data and Logic
Text, Numbers, Procedures
Physical Technology
Mechanical, EM Relays, Electronic Devices
Control Unit and Arithmetic Logic Unit
I/O Devices
Manual, Paper Tape, Punch Cards, Teletype
Programmability
Flexible Automation: Most mechanical machines do just one task; A programmable computer can do many tasks
A Language for Expression of Desired Computation
Automatic Sequencing of successive operations including
Conditional Branching: If…then statements
Iteration: Loops - going back to a previous instruction<br>