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Volume of advertising to which viewers are exposed.

In the case of television, advertising clutter may refer to the volume of advertising spots carried by a broadcast channel.

The addressable functions include the ability to change a subscriber's level of service for premium channels, PPV, etc. A variant of DSL, ADSL is a data communication technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide.

Peoplemeter measurement that registers viewer presence by means of remote control push-button handsets, where panel members are instructed to press at the beginning and end of each viewing session.Each person (family member) belonging to the panel is assigned their own button for purposes of individual identification, whilst additional buttons on the remote control handset are reserved for recording guest viewing.A notarised statement from a broadcast station that confirms the commercial actually ran at the time shown on the station's invoice.A regional/local TV broadcast station bound by a contractual relationship with one or more networks to carry an agreed quantity of network-originated programmes and commercial announcements in parts of the schedule allocated for network programming.Second generation mobile telephony systems offering better quality at lower costs to the consumer through the digitisation of the signal and supporting voice, low speed data connections and short messaging services. Third generation mobile telephony systems as result of further progress in cellular transmission technology leading to faster bit rates.

3G system capabilities include provision of high-speed data transmission and supporting multimedia applications that including mobile TV video services, video-conferencing and Internet access.

ABack to top First generation mobile telephony systems using analogue signals, but with the digitisation of the control link between the mobile phone and the cell (transmission) sites.

Extension of 2G systems through use of 2.5G protocols providing additional features such as GPRS packet-switched connections and enhanced data rates.

(1) Any form of Internet advertisement that is successfully served to a users browser. The total count of ad impressions denotes the number of responses from an ad delivery system to requests from user browsers, ideally recorded as late as possible in the delivery to the users browser in order to be closest to actual OTS (opportunity to see).

A basic distinction exists between requests that are server initiated and requests that are client initiated.

Ad servers will also monitor the number of impressions/clicks for an ad campaign along with other recording and reporting functions.