What is the Enhanced Parallel Port (EPP)?

What does EPP stand for?

The more advantageous Parallel Port (EPP) is an vintage, but nonetheless broadly used, widespread enter/Output (I/O) Interface that connects Peripheral Devices, which includes a printer or a Scanner, to a PC. The 4 preferred parallel ports are the parallel port (PS/2), popular parallel port (SPP), EPP and prolonged skills port (ECP).

The EPP is quicker than older ports and may transmit extra Records at the same time as allowing channel direction Switching. This port is suiTable for transportable tough drives, inFormation acquisition and Network Adapters. The EPP is used specially for PCs that aid 8-Bit bidirectional verbal excHange at Industry Standard Architecture (ISA) Bus speeds. EPP introduced superior performance with backward SPP compatibility. The EPP is about 10 Instances faster than the older port Modes.

What Does Enhanced Parallel Port Mean?

A parallel port changed into first utilized in 1981 to provide a physical interface among a PC and a printer. The authentic parallel port became referred to as the everyday port or SPP, and it soon became a de facto fashionable for maximum PCs.

By 1987, the PS/2 became added. This port become plenty faster and had bidirectional port abilities. The PS/2 may want to read records from a Peripheral Device to the Host. The bidirectional EPP was advanced in 1994 to offer a high-performance interface. This mode become applied as a part of the Institute of Electrical and Electronics Engineers (IEEE) popular. The bidirectional ECP became additionally introduced in 1994 by using Microsoft and Hewlett Packard to be used with printers and scanners. It capabilities direct reminiscence get right of entry to (DMA), first in/first out (FIFO), records compression and channel addressing.

The authentic wellknown parallel port (SPP) was unidirectional (one path) and will transfer 8-bit records. The PS/2 parallel port brought an eight-bit bidirectional facts port that changed into times faster. Both the SPP and PS/2 transferred records at a price of 50 to one hundred fifty KBps. Each new parallel port layout helped improve the overall performance and speed of records Switch.

Both the EPP and ECP guide an 8-bit bidirectional port. Usually, EPP is used for more moderen models of printers and scanners, whereas ECP is used for non-printer peripherals, such as commUnity adapters or Disk Drives. Although EPP and ECP are quite specific, there are cutting-edge products that assist each EPP and ECP collectively.