Search results
Results from the WOW.Com Content Network
Such systems constitute an important aspect of modern Web applications. [3] The widespread adoption of notification systems was a major technological development of the 20th century. A notification is a combination of software, hardware, and psychology that provides a means of delivering a message to a group of recipients.
The first system was the Emergency Broadcast System, an emergency warning system in the United States, used from 1963 to 1997, when it was replaced by the Emergency Alert System. On April 9, 2008, the FCC approved an emergency alert text-messaging system so that cellular telephone users can get text message alerts in case of emergencies.
A fire alarm notification appliance is an active fire protection component of a fire alarm system. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other emergency condition requiring action. Audible appliances have been in use longer than any other method of notification.
An emergency notification system is a method of facilitating the one-way dissemination or broadcast of messages to one or many groups of people, alerting them to a pending or existing emergency. [1] The Emergency Notification System (ENS) was created by Dialogic Communication Corporation (DCC) in the early 1980s.
Contrary to emergency notification systems, which generally deliver emergency information in one direction, emergency communication systems are typically capable of both initiating and receiving information between multiple parties. These systems are often made up of both input devices, sensors, and output/communication devices.
ALERT FM is an emergency notification system that delivers messages from state, local, and/or private sector officials to citizens, schools, businesses, and first responders using the Radio Data System (data sub-carrier) of local FM radio stations.
The National Public Warning System, also known as the Primary Entry Point (PEP) stations, is a network of 77 radio stations that are, in coordination with FEMA, used to originate emergency alert and warning information to the public before, during, and after incidents and disasters.
The biff utility was the user interface used to change notification preferences. The actual act of notifying the user was performed by a daemon called comsat (short for "communications satellite"). The comsat daemon received messages via UDP describing the update to the mailbox, and would then inform the user of the new message. [1]