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A UPS designed for powering DC equipment is very similar to an online UPS, except that it does not need an output inverter. Also, if the UPS's battery voltage is matched with the voltage the device needs, the device's power supply will not be needed either. Since one or more power conversion steps are eliminated, this increases efficiency and ...
The Smart-UPS is a series of enterprise-level uninterruptible power supplies (UPS) made by American Power Conversion (APC). [1] Most of the units have a SmartSlot (with the exception of SC and SMC series) which accepts an optional interface card providing features ranging from network connectivity to temperature and humidity monitoring. [ 2 ]
In 1984, GM opened its first factory in Egypt, and 1985 the first GM vehicle was produced in the country. [4] Al-Mansour Automotive gained rights to sell GM cars in Africa, and eventually became the largest GM dealership in the world. [3] In 1977, the Mansour Group secured rights to sell and distribute Caterpillar digging equipment in Egypt.
The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu , Iraq in 1936, close to the ancient city of Ctesiphon , the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is ...
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Initially retailed for less than $750 (equivalent to $2,294 in 2023), it was a complete low-cost system that shipped with a 75-key typewriter-style keyboard, a daisy-wheel printer, one drive for a class of proprietary data cassettes called Digital Data Packs with the option of a second, a Zilog Z80A as its main processor, and 80 KB of RAM ...