THE MAGAZINE FOR COMPUTER APPLICATIONS
Circuit Cellar Online offers articles illustrating creative solutions
and unique applications through complete projects, practical
tutorials, and useful design techniques.

WHAT'S YOUR ENGINEERING QUOTIENT?

Problem 3—Out of lead acid, NiCd, and NiMH battery chemistries, which one is not suitable for on-line power-fail backup applications?

ANSWER

Problem 4—An application needs to implement a signed 16 ý 16 bit integral multiplication. If the processor can implement only one 8 ý 8 bit multiplication instruction, is a signed multiply instruction more convenient?

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