USB Ports
The USB ports are on Macs built since late 1998. USB stands for Universal Serial Bus, which replaces both the Apple Desktop Bus and the serial ports, as described on page 677. With USB, input devices (like mice and keyboards) as well as scanners, printers, Zip drives, and other devices can all connect into the same ports.
This drawing shows two USB ports and the symbol that identifies USB.
You can’t daisychain USB devices, like you can the SCSI devices mentioned on page 678, but you can buy a hub (shown to the right). The hub connects into one of the USB ports on the Mac, and several devices can plug into the hub. You can connect ...
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