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Many newer clock radios feature a battery backup to maintain the time and alarm settings. Some advanced radio clocks (not to be confused with clocks with AM/FM radios) have a feature which sets the time automatically using signals from atomic clock -synced time signal radio stations such as WWV , making the clock accurate and immune to time ...
An optional 6F22 backup battery (later model may use CR2032) can be installed, to prevent a probable power failure event (i.e. a blackout) from resetting the clock. The vast majority of Dream Machine uses traditional string-pulled tuning for its radio, despite the prevalence of digital PLL tuning.
Emerson Radio pioneered the Smartset clock radio which automatically sets itself with the correct time and date using a battery back-up oscillator time base to accurately set the clock's time when the alarm clock is powered-on and after a power outage. [24]
Roughly resembling a small clock radio, the original Chumby features a small resistive touch-screen housed in a leather-and-plastic exterior with six color options. Power to the original Chumby and the Chumby 8 is supplied through an AC adapter. A later model, the Chumby One, also offered the option of a 9 v backup battery.
A backup battery provides power to a system when the primary source of power is unavailable. Backup batteries range from small single cells to retain clock time and date in computers, up to large battery room facilities that power uninterruptible power supply systems for large data centers.
It had a touch screen which the user could use to browse information or listen to music. It was not a portable device since it did not have an internal battery. It was positioned as a personal internet viewer which could act as an alarm clock, Internet radio, digital photo frame and many other uses. It had applications which were downloaded ...
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