Smaller machines have less room for large parallel port connectors. ATX also made the PS/2-style mini-DIN keyboard and mouse connectors ubiquitous. In Glasgow he created his first keyboard perforator, which used compressed air to punch the holes. The first release in 1994 included original Centronics mode ("compatibility mode"), nibble and byte modes, as well as a change to the handshaking that was already widely used; the original Centronics implementation called for the BUSY lead to toggle with each change on any line of data (busy-by-line), whereas IEEE 1284 calls for BUSY to toggle with each received character (busy-by-character). The Enhanced Parallel Port (EPP), originally defined by Zenith Electronics, is similar to IBM's byte mode in concept, but changes details of the handshaking to allow up to 2 MB/s. In 2000, the EPP and ECP modes were moved into the standard, as well as several connector and cable styles, and a method for daisy chaining up to eight devices from a single port. Some common pitfalls to avoid include: Underestimating bandwidth requirements and failing to future-proof the infrastructure; Neglecting proper cable management, leading to disorganization and maintenance nightmares;Overlooking environmental factors like temperature, humidity, and physical stress; Failing to adhere to industry standards, resulting in interoperability issues and suboptimal performance; Overlooking physical security measures, leaving the network vulnerable to unauthorized access.

In recent years, the LIN bus (Local Interconnect Network) standard has been introduced to complement CAN for non-critical subsystems such as air-conditioning and infotainment, what is control cable where data transmission speed and reliability are less critical. Parallel ports are a more recent invention and are much faster than serial ports. ISO 11898 series specifies physical and data link layer (levels 1 and 2 of the ISO/OSI model) of serial communication category called controller area network that supports distributed real-time control and multiplexing for use within road vehicles. Since the reserved entry for a fourth logical printer port in the BIOS Data Area (BDA) is shared with other uses on PS/2 machines and with S3 compatible graphics cards, it typically requires special drivers in most environments. Data rate comparison between FW and Giganet shows that FW's lower overhead has nearly the same throughput as Giganet. This buffer allows the chip to cache data coming in from the system bus while it is processing data going out to the serial port. It is faster than the other common legacy port (serial port), requires no serial-to-parallel converter, and requires far less interface logic and software than a USB target interface. The Dassault Falcon 7X and Embraer Legacy 500 business jets have flight computers that can partially compensate for engine-out scenarios by adjusting thrust levels and control inputs, but still require pilots to respond appropriately.

In response to demands from the marketplace to help address this problem, BASEC has launched a certification scheme to encourage standardised and consistent levels of quality for control cable product ranges. A good practice is to always leave a length of nylon pull string inside each length of conduit, ready to use for pulling a new wire or cable through. Cablevision Systems Corporation was an American cable television company with systems serving areas surrounding New York City. Some operating systems (like Multiuser DOS) allow to change this fixed assignment by different means. Therefore, in absence of a monochrome display adapter, a common assignment for the first logical parallel port (and therefore also for the corresponding LPT1 DOS device driver) today is 0x378, even though the default is still 0x3BC (and would be selected by the BIOS if it detects a printer port at this address). DOS-based systems make the logical parallel ports detected by the BIOS available under device names such as LPT1, LPT2 or LPT3 (corresponding with logical parallel port 1, 2, and 3, respectively). Under DR-DOS 7.02 the BIOS port assignments can be changed and overridden using the LPT1, LPT2, LPT3 (and optionally LPT4) CONFIG.SYS directives.

DR-DOS 7.02 also provides optional built-in support for LPT4 if the underlying BIOS supports it. In some cases, the BIOS supports a fourth printer port as well, but the base address for it differs significantly between vendors. The base address 0x3BC is typically supported by printer ports on MDA and Hercules display adapters, whereas printer ports provided by the mainboard chipset or add-on cards rarely allow to be configured to this base address. On Linux, inb() and outb() can be used when a process is run as root and an ioperm() command is used to allow access to its base address; alternatively, ppdev allows shared access and can be used from userspace if the appropriate permissions are set. Access is handled in an open-claim-release-close sequence, which allows for concurrent access in userspace. The Extended Capability Port (ECP) is essentially an entirely new port in the same physical housing that also adds direct memory access based on ISA and run-length encoding to compress the data, which is especially useful when transferring simple images like faxes or black-and-white scanned images. A special "PRINT" command also existed to achieve the same effect.