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TOPS

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia, Hutchinson 0.01 sec.

TOPS

(1) A family of operating systems from Digital Equipment that ran on the PDP-6, DECsystem 10 and DECsystem 20 computers. TOPS was later renamed TOPS-10, and TOPS-20 was a completely new OS based on TENEX, developed by Dan Murphy at Digital and members of BBN. TOPS-20 added advanced features for the mid-1970s such as virtual memory.

(2) (Transparent OPerating System) An earlier peer-to-peer LAN from Sitka Corporation, Alameda, CA, that used the LocalTalk access method and connected Apple computers, PCs and Sun workstations. Its Flashcard plugged LocalTalk capability into PCs.



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The tops of the high mountains tremble and the tangled wood echoes awesomely with the outcry of beasts: earthquakes and the sea also where fishes shoal.
The billows rolled dreadfully high: higher even than the tops of houses.
The last rays of the sun Lit but the tops of trees and mountain-peaks With tarnished glory; and the water's sheen, Once blue and bright, grew lustreless, and soon A welter of red clouds alone betrayed The passing of the sun.
 
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