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A Monitor Port and Cable. 15-pin monitor male cable connects to. 15-pin female monitor port. Male and Female Connectors. Male connector. Female connector. Serial Transmission Sends One Bit at a Time. 10110011. 10110011. 1 - 0 - 1 - 1 - 0 - 0 - 1 - 1. Send one byte. bits.
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A Monitor Port and Cable 15-pin monitor male cable connects to... 15-pin female monitor port
Male and Female Connectors Male connector Female connector
Serial Transmission Sends One Bit at a Time 10110011 10110011 1 - 0 - 1 - 1 - 0 - 0 - 1 - 1 Send one byte bits Receive one byte
A Serial Interface 25-pin serial port on a serial device (modem) 25-pin end of serial cable connects to modem and 9-pin end connects to computer’s serial port
Null-Modem Pinouts Male Female NOTE: Line colors are not intended to represent wire colors.
10110011 Receive one byte Parallel Transmission Sends a Whole Byte 10110011 Send one byte
IEEE 1284 Connectors DB-25 1284 Type A Centronics 1284 Type B Mini-Centronics 1284 Type C
Connecting a Non-printer Parallel Port Device Connects to device Connects to parallel port on the computer
A PS/2 Interface PS/2 connector PS/2 mouse port PS/2 keyboard port Cable PS/2 mouse (device)
USB Connectors Type A connector connects to USB port on the computer or on a hub Type B connector connects to USB device
USB Ports, Cables, and Connectors Type A connector connects to USB port on the computer or a hub Connects to a USB port on the computer or another hub USB hub Type B connector connects to USB port on devices
USB Power • 5-volt power supply is carried along with the USB signal. • Allows small devices, such as handheld scanners or speakers, to use power from the PC, rather than requiring their own power cables. • Devices are plugged directly into a 4-pin socket on the PC or hub using a rectangular Type A socket. • A USB bus distributes power through each port. This allows low-power devices that normally need their own power adapters to be powered through the cable. • Hubs may get all of their power from the USB bus (bus-powered), or they may be powered from their own AC adapters.
FireWire Connectors 4-pin 6-pin
FireWire Connections FireWire device FireWire port FireWire 6-pin connector
Transferring Information Over an Infrared Connection IR port IR port
A Digital Radio Wireless Mouse Receiver connects to USB or PS/2 port Transmitter