搜尋結果
Taiwan Semiconductor Manufacturing Company Limited ( TSMC; also called Taiwan Semiconductor) [4] [5] is a Taiwanese multinational semiconductor contract manufacturing and design company. It is the world's second-most valuable semiconductor company, [6] the world's largest dedicated independent ("pure-play") semiconductor foundry, [7] and its ...
- 73,090 (2022)
- US$73.67 billion (2022)
Taiwan,[II][k] officially the Republic of China (ROC),[I][l] is a country[27] in East Asia.[o] It is located at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. The territories controlled by the ...
The Chernobyl disaster [a] began on 26 April 1986 with the explosion of the No. 4 reactor of the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR, close to the border with the Byelorussian SSR, in the Soviet Union. [1] It is one of only two nuclear energy accidents rated at seven—the maximum severity ...
Excess steam from the drywell enters the wetwell water pool via downcomer pipes. SFP: spent fuel pool area. SCSW: secondary concrete shield wall. The Fukushima nuclear accident was a major nuclear accident at the Fukushima Daiichi nuclear power plant in Ōkuma, Fukushima, Japan which began on March 11, 2011.
- History
- Hardware
- Conservation
- See Also
- External Links
Development
In 1975, Steve Wozniak started attending meetings of the Homebrew Computer Club, which was a major source of inspiration for him. New microcomputers such as the Altair 8800 and the IMSAI 8080 inspired Wozniak to build a microprocessor into his video terminal circuit to make a complete computer. At the time the only appropriate CPUs available were the $179[citation needed] Intel 8080, and the $175 Motorola 6800.[c] Of these options, Wozniak preferred the 6800 and began designing a computer aro...
Announcement and sales
The Apple I went on sale in July 1976 at a price of US$666.66.[f] Wozniak later said he had no idea about the relation between the number and the number of the beast, and that he came up with the price because he liked "repeating digits" and because it was a one-third markup on the $500 wholesale price. Jobs had managed to get the inventory into the nation's first four storefront microcomputer retailers: Byte Shop (Palo Alto, California), itty bitty machine company (Evanston, Illinois), Data...
The Apple I used a MOS Technologies 6502 microprocessor running at 1.022727 MHz, and its design was based largely on Wozniak's previous work centered around a Motorola 6800. The unconventional clock speed was chosen to be a fraction (2⁄7) of the NTSC color carrier, which simplified video circuitry. 4 KB of memory was included on the base machine, w...
Only about 200 Apple I boards were produced, and as of August 2022[update] the whereabouts of 62 to 82 are known. After the success of the Apple II, and of Apple broadly, the Apple I was recognized as an important historical computer;[citation needed] according to the 1986 Apple IIe Owner's Guide, an Apple I was then worth "between $10,000 and $15,...
0 (zero) is a number representing an empty quantity. Adding 0 to any number leaves that number unchanged. In mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as well as other algebraic structures. Multiplying any number by 0 has the result 0, and consequently, division ...
Software as a service ( SaaS / sæs / [1]) is a form of cloud computing in which the provider offers the use of application software to a client and manages all the physical and software resources used by the application. [2] The distinguishing feature of SaaS compared to other software delivery models is that it separates "the possession and ...
