unsaturated bonds are present at the surface. [ ] this prevented electricity from reliably penetrating the surface to reach the semiconducting silicon layer. [ ] [ ] due to the surface state problem, germanium was the dominant semiconductor material of choice for transistors and other semiconductor devices...
response pagers are alphanumeric pagers equipped with built-in transmitters, with the ability to acknowledge/confirm messages. they also allow the user to reply to messages by way of a multiple-choice response list, and to initiate "canned" messages from pre-programmed address and message lists. these devices...
telecommunication systems started to appear. this article details the history of telecommunication and the individuals who helped make telecommunication systems what they are today. the history of telecommunication is an important part of the larger history of communication . contents ancient systems and optical...
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updates add pentax k- support apr , at : adobe has released updates for acr as well as standalone and cc versions of lightroom, providing raw support for the pentax k- and sony cyber-shot dsc-rx iii as well as minor bug fixes. read more april padcaster verse is a mobile media case for ios and android devices...