A hashtable or a hash map is a data structure that is used to implement an associative array. It is user-defined reference types. It associates keys with values. The primary operation in hash table is look like: given a key (e.g. a studentâs name), find the corresponding value (e.g. that studentâs ID number).
DRTV is a type of television-based advertising that encourages viewers/consumers to call, visit a website or in some other way make a purchase, register, vote, make an appointment, request more information or take another desired action.
This is archived content from Digital TV Facts. For up-to-date information on the digital TV transition, see the federal governmentâs site, www.DTV2009.gov. Digital television (DTV) includes broadcasts in standard definition (SDTV), enhanced definition (EDTV) and high-definition (HDTV) formats. Digital SDTV offers resolution comparable to analog TV broadcasts. Yet picture and sound quality are noticeably better because digital transmissions are free of snow, ghosts, or static noises.