Socket 5

Socket 5 was created for the second generation of Intel P5 Pentium processors operating at speeds from 75 to 120 MHz as well as certain Pentium OverDrive and Pentium MMX processors with core voltage 3.3 V. It was released in March 1994. Consisting of 320 pins, this was the first socket to use a staggered pin grid array, or SPGA, which allowed the chip's pins to be spaced closer together than earlier sockets. Socket 5 was replaced by Socket 7.

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Socket (telecommunications)

Socket is a Missouri-based telecommunications provider, with its headquarters in Columbia, Missouri. Socket is a privately held company and offers local and long distance phone service, DSL and dial-up internet, and data solutions to residents and businesses across Missouri.

History

Founded in 1994 by George Pfenenger and John Dupuy, Socket Internet quickly became the largest local internet provider in Missouri. In 2001 Inc. (magazine) ranked Socket Internet 136th on its list of America's Top 500 fastest-Growing Private Held Companies. Also in 2001 Technology Fast 50, ranked Socket 4th in The Fast 50, which recognizes the 50 fastest growing technology companies in a given geographic area. In 2004, Socket expanded into the telephone industry, offering business telephone and networking services.

In 2008, the company began offering residential telephone service in select markets. Socket now provides phone services and DSL Internet to most of Missouri.

In 2010, Socket was awarded $23.7 million from the American Recovery and Reinvestment Act of 2009 to deploy a fiber-to-the-home network in Callaway County. Construction for the project began in late 2011 with the first residential customers Fiber Internet service being installed in May 2012. The project is expected to have a major impact in Millersburg, MO and Callaway County where residents are limited to dial-up and satellite Internet options.

Socket 8

The Socket 8 CPU socket was used exclusively with the Intel Pentium Pro and Pentium II Overdrive computer processors. Intel discontinued Socket 8 in favor of Slot 1 with the introduction of the Pentium II.

Technical specifications

Socket 8 has a unique rectangular socket with 387 pins. It supports a FSB speeds ranging from 60 to 66 MHz, a voltage from 3.1 or 3.3V, and support for the Pentium Pro and the Pentium II OverDrive CPUs. Socket 8 also has a unique pin arrangement pattern. One part of the socket has pins in a PGA grid, while the other part uses a SPGA grid.

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Socket 7

Socket 7 is a physical and electrical specification for an x86-style CPU socket on a personal computer motherboard. It was released June 1995. The socket supersedes the earlier Socket 5, and accepts P5 Pentium microprocessors manufactured by Intel, as well as compatibles made by Cyrix/IBM, AMD, IDT and others.

Socket 7 was the only socket that supported a wide range of CPUs from different manufacturers and a wide range of speeds.

Differences between Socket 5 and Socket 7 are that Socket 7 has an extra pin and is designed to provide dual split rail voltage, as opposed to Socket 5's single voltage. (However, not all motherboard manufacturers supported the dual voltage on their boards initially.) Socket 7 is backwards compatible; a Socket 5 CPU can be placed in a Socket 7 motherboard.

Processors that used Socket 7 are the AMD K5 and K6, the Cyrix 6x86 and 6x86MX, the IDT WinChip, the Intel P5 Pentium (2.5–3.5 V, 75–200 MHz), the Pentium MMX (166–233 MHz), and the Rise Technology mP6. Current AMD Geode LX and Geode GX still use Socket 7.