Search results
Results from the WOW.Com Content Network
That original handset, called the DynaTAC 8000x (DYNamic Adaptive Total Area Coverage) weighed 2.5 pounds (1.1 kg), measured 10 inches (25 cm) long and was dubbed "the brick" or "the shoe" phone. [19] A very substantial part of the DynaTAC was the battery, which weighed four to five times more than a modern cell phone. [7]
Two decades of evolution of mobile phones, from a 1992 Motorola DynaTAC 8000X to the 2014 iPhone 6 Plus. A mobile phone, or cell phone, [a] is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones (landline phones).
People have often stopped wearing wristwatches in favor of checking the time on their smartphones, and many use the clock features on their phones in place of alarm clocks. [308] Mobile phones can also be used as a digital note taking, text editing and memorandum device whose computerization facilitates searching of entries.
Martin Cooper, a former general manager for the systems division at Motorola, led a team that produced the DynaTAC 8000X, the first commercially available cellular phone small enough to be easily carried, and made the first phone call from it. Martin Cooper was the first person to make an analog cellular mobile phone call on a prototype in 1973.
An old rotary dial telephone AT&T push button telephone made by Western Electric, model 2500 DMG black, 1980. A telephone, colloquially referred to as a phone, is a telecommunications device that enables two or more users to conduct a conversation when they are too far apart to be easily heard directly.
For premium support please call: 800-290-4726 ... Fortune and more claims that cell phones are causing young people to ... where the head bends to look down at a cell phone—human bodies are ...
The idea is that a cell phone can be made directly at the chip level and implanted in the body. Cell phones are used as brain-assisting tools to help improve work efficiency and sensory experience. Mobile technology classification
Research shows that high levels of smartphone radiation can “damage the engines of the sperm, called the mitochondria,” explains Davis. “They die three times faster than natural.”