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Metcalfe subsequently co-founded 3Com in 1979. [1] The other co-founders were Metcalfe's college friend Howard Charney and two others. [1] Bill Krause joined as President in 1981 and became CEO in 1982 and led 3Com until 1992 when he retired. 3Com began making Ethernet adapter cards for many early 1980s computer systems, including the DEC LSI-11, DEC VAX-11, Sun-2 and the IBM PC.
I/O Ports: 1 PC Card Slot, 1 ExpressCard/54 slot (also supports ExpressCard/34), 5-in-1 integrated Digital Media Reader (MMC, SD cards, Memory Stick, Memory Stick Pro, or xD Picture cards), 3 USB 2.0, 1 VGA port, 1 HDMI, 1 RJ11 modem connector, 1 RJ45 Ethernet connector, Expansion Port 3 (for HP xb3000 dock), S-video TV out, 2 headphones-out, 1 ...
The Attachment Unit Interface (AUI) is a physical and logical interface defined in the IEEE 802.3 standard for 10BASE5 Ethernet [1] and the earlier DIX standard. The physical interface consists of a 15-pin D-subminiature connector that links an Ethernet node's physical signaling to the Medium Attachment Unit (MAU), [ 2 ] sometimes referred to ...
An Ethernet crossover cable is a crossover cable for Ethernet used to connect computing devices together directly. It is most often used to connect two devices of the same type, e.g. two computers (via their network interface controllers ) or two switches to each other.
The small form-factor pluggable double density (SFP-DD) multi-source agreement is a standard published in 2019 for doubling port density. According to the SFD-DD MSA website: "Network equipment based on the SFP-DD will support legacy SFP modules and cables, and new double density products." [48] SFP-DD uses two lanes to transmit.
An Ethernet adapter card for the IBM PC was released in 1982, and, by 1985, 3Com had sold 100,000. [16] In the 1980s, IBM's own PC Network product competed with Ethernet for the PC, and through the 1980s, LAN hardware, in general, was not common on PCs. However, in the mid to late 1980s, PC networking did become popular in offices and schools ...
HP JetDirect was first introduced in March 1991 (code named QuickSilver) with the LaserJet IIIsi network printer (code named Eli). JetDirect is based on HP's MIO (Modular Input/Output) interface, which was designed from the ground up with the IIIsi to create a mainstream full function high performance networked printer.
However, a ~1.4 second asynchronous timer is used to resolve the extremely rare case (with a probability of less than 1 in 5×10 21) of a loop in which each end keeps switching. [ 5 ] Subsequently, Dove promoted auto MDI-X within the 1000BASE-T standard [ 5 ] and also developed patented algorithms for forced-mode auto MDI-X which allow a link ...
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