Question 1
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‘Optimus’ is the prototype humanoid robot, launched by which company
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Altaba Inc. is a non-diversified, closed-end management investment company based in New York City that was formed from the remains of Yahoo! Inc. after Verizon acquired Yahoo's Internet business.The company that remained after the purchase changed its name to Altaba Inc. on June 16, 2017.Verizon completed its acquisition of Yahoo!'s core internet business on June 13, 2017, and put the assets under a new subsidiary named Yahoo! Holdings within its newly created division, Oath.The only Yahoo!-branded interest held by Altaba was its stake in the joint venture Yahoo! Japan but this stake has since been sold to SoftBank Group. Via Wikipedia
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to that of the message signal being transmitted. The message signal is, for example, a function of the sound to be reproduced by a loudspeaker, or the light intensity of pixels of a television screen. This technique contrasts with frequency modulation, in which the frequency of the carrier signal is varied, and phase modulation, in which its phase is varied. Via Wikipedia
The message text was the word login; the l and the o letters were transmitted, but the system then crashed. Hence, the literal first message over the ARPANET was lo. About an hour later, having recovered from the crash, the SDS Sigma 7 computer effected a full login (Wikipedia article on Arpanet, accessed 12-26-2012).
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