USB mice and keyboards can usually be used with older computers that have PS/2 connectors with the aid of a small USB-to-PS/2 adapter. For mice and keyboards with dual-protocol support, an adaptor that contains no logic circuitry may be used: the hardware in the USB keyboard or mouse is designed to detect whether it is connected to a USB or PS/2 port, and communicate using the appropriate protocol. Converters also exist that connect PS/2 keyboards and mice (usually one of each) to a USB port. These devices present two HID endpoints to the system and use a microcontroller to perform bidirectional data translation between the two standards. COUNT 5
QSN1 What do older computers have to have in order for USB mice and keyboards to be used? ANS1 PS/2 connectors with the aid of a small USB-to-PS/2 adapter QSN2 What is the hardware designed to detect in USB mice and keyboards? ANS2 whether it is connected to a USB or PS/2 port QSN3 USB keyboards and mice may communicate using what? ANS3 appropriate protocol QSN4 What connects PS/2 keyboards and mice to a USB port? ANS4 Converters QSN5 What performs bidirectional data translation between two standards? ANS5 a microcontroller