Robert Abramson

Since radio circuits inherently possess a broadcast network topology (i.e., many or all nodes are connected to the network simultaneously), one of the first technical challenges faced in the implementation of packet radio networks was a means to control access to a shared communications channel. Professor Norman Abramson of the University of Hawaii developed a packet radio network known as ALOHAnet and performed a number of experiments around 1970 to develop methods to arbitrate access to a shared radio channel by network nodes. This system operated on UHF frequencies at 9600 baud. From this work the Aloha multiple access protocol was derived. Subsequent enhancements in channel access techniques made by Leonard Kleinrock et al in 1975 would lead Robert Metcalfe to use carrier sense multiple access (CSMA) protocols in the design of the now commonplace Ethernet local area network (LAN) technology.

Bob screen print 03 a photo by Robert Abramson for IzoneVision on Flickr. A village is seen from the field of sunflowers Bookmark on Delicious [...]

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Bill Abramson still remembers the dedication, organization and thoroughness that Enterprise suburban editor Robert Richards brought to the task of covering the 1980 presidential election. Richards started overseeing election coverage at 8 p.m. that night ...

ROBERT SIEGEL, HOST: From NPR News ... just as NATO forces did in Libya last year. But as NPR's Larry Abramson reports, military leaders insist the Syrian case is different. LARRY ABRAMSON, BYLINE: This week, the administration has been busy ...

Both Gov. Beshear and Lt. Gov. Jerry Abramson visited storm-stricken areas Saturday morning. Gov. Beshear, along with Sen. Robert Stivers and Sen. Damon Thayer, toured heavy damage in communities in Morgan, Magoffin and Kenton counties.

James Davidson's grandson, Don Abramson, and his wife Leslie have greatly assisted ... by an important donation of JW Davidson research materials by historian Dr. Robert Lampard, an honorary member of the Calgary Rotary Club who has written extensively ...

Both Gov. Beshear and Lt. Gov. Jerry Abramson visited storm-stricken areas Saturday morning. Gov. Beshear, along with Sen. Robert Stivers and Sen. Damon Thayer, toured heavy damage in communities in Morgan, Magoffin and Kenton counties.

Jill Abramson, executive editor of The Times ... which carefully controls foreign news media. Although The Times’s Robert F. Worth captured some Iranian voices in his Feb. 6 article on the impact of sanctions, The Times has not been able ...

"It's devastating." Lt. Gov. Jerry Abramson visited the damaged areas of Laurel County Saturday. He was joined by state Sen. Tom Jensen, R-London, and Bob Mitchell, the district director for U.S. Rep. Hal Rogers, R-5th District. "I've never seen ...

“Marley,” a documentary about legendary musician Bob Marley will premiere on March 11th at ... Overseeing for VH1 are Brad Abramson, Shelly Tatro and Jeff Olde. “UPRISING: Hip Hop and the LA Riots” is produced by Mark Ford for Creative ...