IE 332 Exam 1 Questions and Answers
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Universal Turing Machine - -infinite tape composed of cells, each
contain a single character
-machine can change info being stored, write new symbol, or move tape
left or right
-Mathematical model of computation
-can be used to show ...
-e/ instruction requires a certain number of clock ticks to perform
-as CPUs became faster, wires on MB started acting like antennae ->
Signal vanishes as radio wave
-Special clock used to transfer between RAM and CPU
Moore's Law - ✔✔-every 1-2 years there's about a doubling in computing
rate/# of transistors
GPU Computing - ✔✔-Graphics Processing Unit
-Differences b/w GPU & CPU:
-CPU = few cores optimized for sequential tasks
-GPU = thousands of cores for many parallel tasks
each core runs slower than CPU
many more transistors
more power and cost efficient
more limited instruction set
good for simulation based tasks
can accelerate applications faster than CPU
Volatile Computer Memory - ✔✔-primary memory
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