Data within a computer system is transmitted via parallel mode, a method of conveying multiple binary digits (bits) simultaneously, e.g., between a computer and a printer (parallel printer port and cable). Data between computer systems is usually transmitted in bit serial mode. It is, thus,necessary to make a parallel-to-serial conversion at a computer interface when sending data from a computer system into a network (Internet) and a serial-to-parallel conversion, when receiving information from a network (Internet). Internet chatting involves the same process. It is not face-to-face, so non-verbal exchange is impossible. Grapevine is usually informal and oral and includes generous non-verbal components.