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This is an accepted version of this page This is the latest accepted revision, reviewed on 17 November 2024. Type of clock A traditional wind-up (key-wound), mechanical spring-powered alarm clock An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or ...
A modern LF radio-controlled clock. A radio clock or radio-controlled clock (RCC), and often colloquially (and incorrectly [1]) referred to as an "atomic clock", is a type of quartz clock or watch that is automatically synchronized to a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock.
Following Timex's ZX81-based T/S 1000 and T/S 1500, a new series of ZX Spectrum-based machines was created.Initially named T/S 2000 (as reflected on the user manual [1]), the machine evolved into the T/S 2048 prototype, and was eventually released as T/S 2068, with the name chosen mainly for marketing reasons.
an alarm clock that sounds an alarm at a pre-set time, often used to wake a person up or remind them of an event. a fire alarm which is used to give occupants of a building early warning of a potential fire and give them time to evacuate. warning devices on a vehicle that sound when it is moving in an unexpected direction, such as reversing,
A digital clock's display changing numbers. To represent time, most digital clocks use a seven-segment LED, VFD, or LCD for each of the four digits. They generally also include other elements to indicate whether the time is AM or PM, whether or not an alarm is set, and so on. Older digital clocks used numbers painted on wheels, or a split-flap ...
An exception is Timex and Oris [5] [6] who in the 1960s produced fully jeweled pin-pallet watches. By 1980 inexpensive quartz watches took over the market for low-end watches which pin pallet watches had dominated, and production ceased. Quartz technology is gradually replacing the last uses of pin pallet movements in timers and alarm clocks.
The device supports all the Timex Sinclair machines, [10] coming with a cassette containing modem control software for T/S 1000 and T/S 1500 on side A and for T/S 2068 on side B. [11] It was based on the Intel 8251 USART chip and very slow (300 bit/s).
Balance wheel in a 1950s alarm clock, showing the (1) balance spring and (2) regulator. Clip of operating balance wheel in a mantel clock, showing motion of balance spring (top center) A balance spring , or hairspring , is a spring attached to the balance wheel in mechanical timepieces .