Model: Gigasonic RGS-1214DUSB SupportedBijoy Bangla SupportedBangla Alphabet PrintedPlug & PlayIn computing, a computer keyboard is a typewriter-style devicewhich uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape, interaction via teleprinter-style keyboards became the main input method for computers.GIGASONIC Computer Wired USB Keyboard