Traditionally, external SRAMs feature a parallel interface. Given the memory requirements for most of SRAM-based applications, it’s no surprise that parallel is a better option. For the high ...
This converter may help if just the serial port on a personal computer is free, whereas the printer needs a parallel (Centronics) port. It converts a serial 2400 baud signal into a parallel signal.
A parallel circuit is way of connecting components on separate branches, so the current can take different routes around the circuit. The current is different in different parts of a parallel circuit.