Units and Performance Figures (Price and performance figures based on 1991 estimates)

Magnitude Name Abbreviation Unit Abbreviation
10l8 ≈ 260 exa e, E bit b
1015 ≈ 250 peta P, P byte (8 bits) B
1012 ≈ 240 tera t, T bits per second bps
109 ≈ 230 giga, billion g, b, G, B bytes per second Bps
106 ≈ 220 mega m, M instructions per second ips
103 ≈ 210        
100 ≈ 20 kilo k, K transactions per second tps
10−3 milli m    
10−6 micro μ    
10−9 nano n    
10−12 pico P    
10−15 femto f    

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Price-Performance Tradeoff for Memory

Typical Performance Figures of Commercial Systems

Terms and ...

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