Agilent HPJ-1981-03 free download

File name HPJ-1981-03.pdf

r{ '.!q., ,'.$ li $ !! jl 1: * 1&: t - { ' * i1 : tt ,1 1 k '$ tu .rt ',& , sf r \..': ,* # ,s;' ,1 & ...i. 1 r, H EW LETT.PACKAFI D J O U FINAL Technical Inlormation trom the Laboratories ot Hewlett-Packard Company 1981 MARCH 3 Volume r Number 32 Contents: New Display Station Offers Multiple Screen Windows and Dual Data Communications Ports, by Gary C. Staas tt'sfour terminals one, bringing new flexibility computerappli- in to cation sysfems. Dispfay Station's User Interface ls Designed for Increased Productivity, by Gordon C. Graham Easy access to an extensive feature set requiresa thorough,thoughtfulapproach to the user interface. Hardware and Firmware Support for Four Virtual Terminals in One Display Station' by Srnlvas Sukumarand John D. Wiese The goalswere 26454 compatibility, improvedpricel performanceand reliabitity, and ease of use, manufacturing,and service. A sificon'on-sapphire Integrated video controller, by Jean-claude Roy Integration was considered mandatory to make the display system practical and reliable. SC-GutQuartz Oscillator Offers lmproved Performance,by J. RobertBurgoonand Robert L. Wilson lt's more stableand /ess noisy, warms up fasfer, and uses /ess power. The SC Cut, a Brief Summary, by Charles Adamsand John A. Kusters Firstintroduced A. in 1974, fhe stress compensated cut has many virtues. Flexible Circuit Packaging of a Crystal Oscillator, by James H. Steinmetz Selectively stiffenedflexibtecircuitry is a radical approach that meets tough obiectives. New Temperature Probe Locates Circuit Hot Spots, by Marvin F. Estes and Donald Zimmer, Jr. tt provides fast, accuratetemperaturemeasurementsfor design, diagnostic, and testingaPPlications. In this Issue: The shiny rock on this month'scover is a pieceof cultured(laboratory-grown) quartz.The thin transoarent disc mountedin its holderin front of the rock is