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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 5 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
1. Assume that our MAR contains 20 bits, enabling us to access up to 220 memory cells, which is 1 MB, but our computer has 4 MB of memory. Explain how it might be possible to address all 4 MB memory cells using a MAR that contains only 20 bits.
2. Assume that a 1 gigaflop machine is connected to a printer that can print 780 characters per second. In the time it takes to print 1 page (65 lines of 60 characters per in), how many floating-point operations can the machine perform?
3. Assume that we have an arithmetic/logic unit that can carry out 20 distinct operations. Describe exactly what kind of multiplexor circuit would be needed to select exactly one of those 20 operations.
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