Electronic Design

Flashback

Flashback > 10 Years Ago

JULY 9, 1992
Although image-compression technology is advancing in development laboratories worldwide, with demonstration setups delivering sharp pictures with minimum degradation, many practical questions still remain for its developers. Standards have yet to be finalized, hardware-software tradeoffs have yet to be optimized, and hardware implementations still demonstrate a wide divergence in approaches. Nevertheless, efforts are intensifying as the companies involved total up the potential markets for such systems as multimedia PCs, automated teller machines, video conferencing systems, videotelephony, and point-of-sales and point-of-information machines to digital still cameras. (Technology Analysis, p. 40)

Flashback > 25 Years Ago

JULY 5, 1977
Faced with a need to expand memory, you can choose two basic types: static and dynamic RAM. Because most microprocessors, like the 8080 or 6800, do not provide any control signals or operating modes that would simplify the interface of dynamic RAM to a microprocessor, designers usually prefer static RAM because it's "easier to interface." But before you follow suit, see what dynamic RAM has to offer.

Tables 1 and 2 compare the requirements of the two RAM types when used with a Z80 µP. For a 4-k × 8 RAM, there is little difference in power consumption and cost, but the static approach needs 39 chips, while the dynamic alternative requires only 15. (Technology, p. 66)

Flashback > 40 Years Ago

JULY 5, 1962
The senate gave speedy approval to house-passed administration legislation compelling television-set manufacturers to market all-channel receivers, but not without hearing a warning from Sen. Norris Cotton (R, N.H.). Among the few who stood with the Electronic Industries Association against the mandate, Cotton said the new law substitutes "government regulation for the public's freedom to choose among manufactured products." He went on:

"It might be a forerunner of the consumer controls of the future, and it would open up whole new vistas of coercion and confusion.... If today we force people to buy TV sets they do not want and cannot use, where shall we draw the line tomorrow—if there is any line left to draw?" (Washington Report, p. 20)

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