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  WHAT IS:-(N.F.C) !............. Near Field Communication (NFC) is a set of communication protocols that allow two electronic devices to communicate over a distance of 4 cm (112 inches) or less. NFC provides low-speed connectivity through a simple setup that can be used to bootstrap higher-performance wireless connections. Like other "proximity card" technologies, NFC is based on inductive coupling between two so-called antennas present in NFC-enabled devices (such as smartphones and printers) rotating in one or both directions at a frequency of 13.56 MHz. . A globally available, unlicensed radio frequency ISM band using the ISO/IEC 18000-3 air interface standard with data rates from 106 to 424 kbit/s. The standard was provided by the NFC Forum. This forum was responsible for promoting technology, setting standards, and certifying device compliance. If it meets the criteria to be considered a personal area network, it can be used for secure communication by applying encryp...

WHAT IS:-(R.A.D.I.O) !............. This article is about science and technology. For broadcasting, see Radio Broadcast. For device information, see Radio Receiver. For other uses, see Radio (disambiguation). Radio is a signaling and communication technology using radio waves. Radio waves are electromagnetic waves with frequencies between 30 hertz (Hz) and 300 gigahertz (GHz). They are produced by an electronic device called a transmitter connected to an antenna that emits waves that are received by another antenna connected to a radio receiver. Radios are very widely used in modern technology in radio communications, radar, radio navigation, remote control, remote sensing, and other applications. Numerous radio antennas at Sandia Peak near Albuquerque, New Mexico, USA Used to transmit information through space from a transmitter to a receiver. In radar, used to locate and track objects such as aircraft, ships, spacecraft, and missiles, a beam of radio waves emitted by a radar transmit...

1. NEURALINK Neuralink Corporation is a neurotechnology company developing implantable brain-machine interfaces (BMIs). Co-founded by Elon Musk, Max Hodak and Paul Merolla, the company is headquartered in the Pioneer Building in San Francisco and shares offices with OpenAI. Neuralink launched in 2016 and was first publicly announced in March 2017. Since its inception, the company has hired several top neuroscientists from various universities. By July 2019, it had received $158 million in funding (including $100 million from Musk) and employed 90 employees. At the time, Neuralink announced it was working on a "sewing machine-like" device capable of implanting very thin (4 to 6 μm wide) threads into the brain, and demonstrated a system that reads information from a lab rat via 1,500 electrodes. They anticipated starting human experiments in 2020; but they have since moved that projection to 2022. Several neuroscientists and publications, including the MIT Technology Review, ha...