(SR-52) Computer Simulation

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An excerpt from Computer Simulation On a Pocket Calculator, Computer Design {the magazine of digital electronics}, vol. 16. no. 5, pgs. 105-109

" Previously, computer system simulation was highly complex, time consuming, and tedious, requiring man-months of software derivation and hours of computer run time. Now it is possible to evaluate and optimize a large number of computer hardware design configurations in minutes, using a simple program and a handheld calculator.

  Modeling a computer system no longer requires man-months of programming work or hours of computer run time. Specialized programming languages or proprietary software packages are useful tools but are not always necessary. This article describes an understandable analytic model, which is based on queuing theory and is programmed for the Texas Instrument SR-52 pocket calculator. It is ready for immediate and practical application.
  Having this computer system model preprogrammed on a pocket calculator will expand the design engineer's decision-making capacity; the ability to immediately evaluate and optimize a large number of computer configuration problems is readily available. Instruction listing and simulation examples for the SR-52 are included; …
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Constant and Exponential Service Times
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… constant and exponential services are both modeled. Then, both models are simulated to establish boundaries. Real system performance lies somewhere between these limits.
  Service times are assumed to be either all exponential or all constant. Both models have been programmed for the SR-52 …
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               TABLE 1
SR-52 User Instructions for Analytic Computer Model …
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               TABLE 2
Simulation Model Examples …
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               TABLE 3
SR-52 Coding Form for Analytic Computer Model …
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Summary
  Detailed discrete models can execute for hours on full size computers before reaching steady-state results. What can be expected of an analytic model run on a handheld calculator? The SR-52 program listing in Table 3 has been optimized for speed and user convenience …
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