USB adalah singkatan dari Universal Serial Bus yang secara asasnya USB adalah antaramuka antara komputer dengan peranti-peranti elektronik yang lain seperti keyboard, mouse, pen drive, kamera digital, CD & DVD Writer eksternal, printer,portable harddisk dan yang paling popular dan digunakan oleh hampir setiap orang iaitu thumb drive (boleh juga dipanggail pen drive dan flash drive).
Komputer/laptop sekarang mempunyai sekurang-kurangnya 4 port USB dan jika tak cukup lagi kita boleh guna USB 4,6,8 dan mungkin lebih lagi yang berada di pasaran.
Kini USB telah dipelbagaigunakan lagi untuk kehidupan harian seperti gambar di bawah:
USB Powered Air Conditioned Shirt
This shirt has two fans that circulate air to keep you dry. It has a switch that allows for adjustable fan speed, and can also be powered by four AA batteries in case your USB cable just isn't long enough.
USB Powered Dart Launcher
This USB dart launcher can be aimed and launched with the included control software. Comes with three foam darts and has a range of 15 feet.
The USB Doorbell
You can choose what songs play when someone pushes the doorbell button with this USB Doorbell. It plays music in both MP3 and WMA format.
USB Podcast Studio
This USB studio kit includes a professional quality recording mic with a 19mm internal shock mounted diaphragm. Also includes digital audio workstation software and a slick aluminum case.
USB Powered Aquarium
Contains life-like animated fish that can be fed and played with via an interactive menu. Also has a blue LED nightlight and flowing water current.
USB Drum Kit
Just plug this drum kit into your USB port and start drumming away. The sound output plays over your computers speakers.
USB Rechargeable AA Batteries
Instead of paying for extra batteries or for a hefty recharging station, save yourself some money and buy some USB rechargeable batteries. Just pop the top, plug them in, and there you go.
USB Frag Pedals
These pedals add extra functionality to your computer interactivity. Just plug them in and you instantly have additional inputs. Right and left-click with your feet, or add a foot brake to a racing game.
USB Digital Microscope
This microscope allows you to view objects up to 200x. With the included plug and play software, you can also record your viewings in still frame images or in full video.
Oldschool USB Record Player