Huawei E220
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The Huawei E220 is a Huawei HSDPA access device manufactured by Huawei and notable for using the USB interface.
Huawei E220 HSDPA USB modem
Vodafone 3G USB modem
Modem
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A modulator-demodulator, commonly referred to as a modem, is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as teleph
Huawei E220
…The Huawei E220 is a Huawei HSDPA access device (modem) manufactured by Huawei and notable for using the USB interface (USB modem). Technically it is a modem, USB and (due to the ISO 9660 format) virtual…
Acoustic coupler modems used a telephone handset as the audio medium, with the user dialing the desired number and then pressing the handset into the modem to complete the connection. These systems generally operated at a speed of 300 bits per second.
Collection of modems once used in Australia, including dial-up, DSL, and cable modems
A demonstration of AT&T Bell 101 modem in 1958
The original 300-baud Hayes Smartmodem