Electronic Design

Reader Polls/Flashback

FLASHBACK>10 YEARS AGO

FEBRUARY 6, 1992
When the doors swing open at the Long Beach Convention Center for this year's Buscon '92 West show, Feb. 4-6, attendees will encounter a technical program and exhibits with a wide range of computer technology subjects. One particular topic that will surely pique interest is the use of mezzanine buses, an approach that adds flexibility and allows customization of computer boards.

Computer board makers always seek out ways to differentiate their boards from the competition. One approach is to incorporate a mezzanine bus that can accommodate different daughterboard modules for almost any application. The performance tradeoffs are minimal and there's a significant cost savings over designing full-size boards. (Technology Analysis, p. 35)

FLASHBACK>25 YEARS AGO

FEBRUARY 1, 1977
Logic analyzers are a moving target. In an industry known for fast product turnover, they're among the speediest and the youngest. The problem of selecting an appropriate analyzer, therefore, is essentially one of keeping up.

Before you set out to track the relatively new frontier of logic and µP analyzers, lay out your applications thoroughly. Then make sure to define the destination. Not doing so is like exploring an unknown continent without a compass—in both cases you're almost certain to get lost....

Often forgotten in a product search is the need for the analyzer to connect to the circuit under test. This is no minor concern, considering that sometimes 32 channels of data collections are necessary. (Focus Report, p. 40)

FLASHBACK>40 YEARS AGO

FEBRUARY 1, 1962
These solid-state microwave amplifiers operate at center frequencies from 2.5 to 7 Gc. The noise figure is 5 db or less. The units can be adapted for waveguide operation through the use of a coaxial-to-waveguide transducer.

The manufacturer, International Microwave Corp., 1 Seneca Place, Greenwich, Conn., states that these coaxial amplifiers warrant consideration as an alternative to parametric amplifiers. Specific applications mentioned are as low-noise front ends in ground and airborne radar receivers. The MCA series of amplifiers is designed to a customer's specified center frequency. The quoted gain bandwidth for the series is 2 × 109. (Product Feature, p. 112)

READER POLLS
Most of us remember our college days fondly. We were young, our chosen career beckoned us, and the world was at our feet. But we may not regard as warmly the mandatory curriculum required to earn our degree. What's your opinion of those courses? Go to our Web site (www.elecdesign.com) to take the poll.

Most useful EE courses:

  • Circuit analysis
  • Filters and filter theory
  • Signals and noise analysis
  • Electromagnetic field and wave theory
  • Power transmission and generation
  • Control and servo theory
  • Computer science
  • Motor control and theory
  • Communications
  • Other

Least useful EE courses:

  • Circuit analysis
  • Filters and filter theory
  • Signals and noise analysis
  • Electromagnetic field and wave theory
  • Power transmission and generation
  • Control and servo theory
  • Computer science
  • Motor control and theory
  • Communications
  • Other

Most useful non-EE courses:

  • Mathematics
  • Thermodynamics
  • Quantum physics
  • Mechanical engineering
  • Chemistry
  • Humanities
  • English composition
  • Other

Least useful non-EE courses:

  • Mathematics
  • Thermodynamics
  • Quantum physics
  • Mechanical engineering
  • Chemistry
  • Humanities
  • English composition
  • Other
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