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Erik Jonsson School of Engineering and Computer Science. EE/CE 2310 – HON/002. Introduction to Digital Systems. http://www.utdallas.edu/~pervin. Thursday : (P) Chapter 12, (T) 13-7. Tuesday 4-24-12. FEARLESS Engineering. www.utdallas.edu/~pervin. (T) 12 Microcomputer Memory. RAM ROM - PowerPoint PPT Presentation
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Erik Jonsson School of Engineering and Computer Science
FEARLESS Engineering www.utdallas.edu/~pervin
EE/CE 2310 – HON/002
Introduction to Digital Systems
http://www.utdallas.edu/~pervin
Thursday: (P) Chapter 12, (T) 13-7
Tuesday 4-24-12
(T) 12 Microcomputer Memory
RAMROMPROMEPROM
Bulk Storage
Hard Disk Drives
5400 RPM, 7200 RPM, 9600 RPM
Suppose we had 12000 RPM (Hot and Noisy)
12000/60 = 2000 RMS = 2 RPmS = 0.002 RPμS = 0.000002 RPnS
Thus
1 revolution in 1/2000 S = ½ mS = 500 μS = 500000 nS
And so average wait time just for rotation is:
250,000 nS
(T)13.7 Programmable Logic Array (PLA)
See pp. 326ff
(P) 11.1 Pipelining
(P) 11.2 Delayed Branches
(P) 11.3 Caches
(P) 11.4 Delayed Loads
(P) *9.6 Fixed-point Numbers
This will not be on the final exam but it wouldn’t hurt to know about it!
FINAL: 8:00am 5/10
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