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The No. 4 Electronic Switching System (4ESS) is a class 4 telephone electronic switching system that was the first digital electronic toll switch introduced by Western Electric for long-distance switching.
An executive information system (EIS), also known as an executive support system (ESS), is a type of management support system that facilitates and supports senior executive information and decision-making needs. It provides easy access to internal and external information relevant to organizational goals.
Election Systems & Software (ES&S or ESS) is an Omaha, Nebraska-based company that manufactures and sells voting machine equipment and services. The company's offerings include vote tabulators, DRE voting machines, voter registration and election management systems, ballot-marking devices, electronic poll books, ballot on demand printing services, and absentee voting-by-mail services.
The 5ESS came to market as the Western Electric No. 5 ESS. It commenced service in Seneca, Illinois on March 25, 1982, and was destined to replace the Number One Electronic Switching System (1ESS and 1AESS) and other electromechanical systems in the 1980s and 1990s.
Environmental stress screening (ESS) refers to the process of exposing a newly manufactured or repaired product or component (typically electronic) to stresses such as thermal cycling and vibration in order to force latent defects to manifest themselves by permanent or catastrophic failure during the screening process. The surviving population ...
The No. 1 Electronic Switching System Arranged with Data Features (No. 1 ESS ADF) was an adaptation of the Number One Electronic Switching System to create a store and forward message switching system. It used both single and multi-station lines for transmitting teletypewriter and data messages. It was created to respond to a growing need for ...
11:29–11:36 a.m.: Library massacre At 11:29 a.m., Harris and Klebold entered the library. Fifty-two students, two teachers and two librarians were inside. Harris yelled at everyone to "Get up!" loudly enough to be heard on the 911 call. Harris fired his shotgun twice at a desk. Student Evan Todd had been standing near a pillar when the shooters entered the library and had just taken cover ...