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Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world.

What was the uranium-based bomb made by the US in World War II called?
Answer: Little Boy
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While consulting for the Moore School of Electrical Engineering at the University of Pennsylvania on the EDVAC project, von Neumann wrote an incomplete First Draft of a Report on the EDVAC. The paper, whose premature distribution nullified the patent claims of EDVAC designers J. Presper Eckert and John Mauchly, described a computer architecture in which the data and the program are both stored in the computer's memory in the same address space. This architecture is to this day the basis of modern computer design, unlike the earliest computers that were "programmed" using a separate memory device such as a paper tape or plugboard. Although the single-memory, stored program architecture is commonly called von Neumann architecture as a result of von Neumann's paper, the architecture's description was based on the work of J. Presper Eckert and John William Mauchly, inventors of the ENIAC computer at the University of Pennsylvania.

What was the significance of EDVAC?
Answer: architecture is to this day the basis of modern computer design,
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Doordarshan is the state-owned television broadcaster. Doordarshan Shimla also provides programs in Pahari language.Multi system operators provide a mix of Nepali, Hindi, English, and international channels via cable. All India Radio is a public radio station. Private FM stations are also available in few cities like Shimla. BSNL, Reliance Infocomm, Tata Indicom, Tata Docomo, Aircel, Vodafone, Idea Cellular and Airtel are available cellular phone operators. Broadband internet is available in select towns and cities and is provided by the state-run BSNL and by other private companies. Dial-up access is provided throughout the state by BSNL and other providers.

What is All India Radio?
Answer:
public radio station