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Network Systems Corporation (NSC) was an early manufacturer of high-performance computer networking products. Founded in 1974, NSC produced hardware products that connected IBM and Control Data Corporation (CDC) mainframe computers to peripherals at remote locations.
In smaller SCADA systems, the supervisory computer may be composed of a single PC, in which case the HMI is a part of this computer. In larger SCADA systems, the master station may include several HMIs hosted on client computers, multiple servers for data acquisition, distributed software applications, and disaster recovery sites.
A computer network diagram is a schematic depicting the nodes and connections amongst nodes in a computer network or, more generally, any telecommunications network. Computer network diagrams form an important part of network documentation.
Intergalactic Computer Network or Galactic Network [1] (IGCN) was a computer networking concept similar to today's Internet.. J.C.R. Licklider, the first director of the Information Processing Techniques Office (IPTO) at The Pentagon's ARPA, used the term in the early 1960s to refer to a networking system he "imagined as an electronic commons open to all, ‘the main and essential medium of ...
In data communication, a physical network node may either be data communication equipment (DCE) such as a modem, hub, bridge or switch; or data terminal equipment (DTE) such as a digital telephone handset, a printer or a host computer. If a network is a local area network (LAN) or wide area network (WAN), every LAN or WAN node that participates ...
MoCA networking is a popular choice for whole-home DVR systems because, unlike Ethernet, it uses ordinary RG-6 coaxial cabling which may already be installed in the customer's home. It is also often used in place of wireless as it provides a reliable, fade-free connection robust enough to handle even high-rate MPEG-2 video from the DVR.
[90] [91] [92] New York City's Domain Awareness System has 6,000 video surveillance cameras linked together, [93] there are over 4,000 cameras on the subway system (although nearly half of them do not work), [94] and two-thirds of large apartment and commercial buildings use video surveillance cameras.
A/72 part 1: Video System Characteristics of AVC in the ATSC Digital Television System [11] A/72 part 2 : AVC Video Transport Subsystem Characteristics [ 12 ] The new standards support 1080p at 50, 59.94 and 60 frames per second; such frame rates require H.264/AVC High Profile Level 4.2 , while standard HDTV frame rates only require Levels 3.2 ...