A port used with communication devices. These ports are labeled Serial Ports because they only transmit one bit at a time. This makes them considerably slower than many current devices. Serial Ports are used for various devices such as a computer mouse, keyboard or printer.

Slot 1 is a format developed by Intel for their Pentium II and III CPU's and later extended to the Celeron line as well. It places the whole CPU onto a single edge (SEC) cartridge, and many times incorporates the heatsink and cooling fan assembly into the package. This allowed for easier installation as well as larger available cache sizes. The slot method of CPU packaging is being fazed out as the benefits of socket style CPU's are being realized now that cache memory is being directly placed on the dye itself.

Slot A When INTEL would not license their Slot 1 packaging design to AMD for use in their new Athlon CPU, AMD went ahead and developed the Slot A format designed to compete with the Intel Pentium II and III. This design places the complete CPU assembly along with its cache memory and the heatsink and cooling fan mechanism onto a single edge cartridge (SEC). This allows for easier installation and more efficient operation. AMD is phasing out its production of Slot A CPU's as it concentrates on the faster and cheaper socket style CPU's that feature the cache memory incorporated into the chip dye.

Socket 370 This socket style format was developed by Intel for their economical Celeron processor But will now be used for the whole Intel line of CPU's including the newest Pentium IV's.

This socket style interface was developed by AMD for their Duron line of CPU's and is now being extended totheir higher performance Athlon processors.