|
Elektronika MK-18M
The Elektronika MK-18M () was a scientific calculator manufactured in the Soviet Union. It was released in 1986. Technical specifications Source: * Display: vacuum fluorescent display, green color, contains 8 digits + minus sign + error sign * Power: 4 x AA batteries or AC adapter (with charging function) with 3-pin connector, power consumption ≤0.7W * 20 buttons * Case: aluminium + plastic * Supported numbers range: ±(10E-7)...±(10E8-1) * Size: 170x86.5x27 mm, weighing around 350 grams Novelty The Elektronika MK-18M calculator has no new novel functionality. Despite this, the aluminum casing was an improvement from previous models' plastic casing. In addition, the model was produced at Billur (Ganja, Azerbaijan, Kirovograd), in contrast to the Elektronica B3-18 and B3-18A models which were manufactured at Angstrem (company), Angstrem (Zelenograd) and NPO Elektronika (Boguchar, Voronezh Region). See also * Elektronika B3-34 References Computer-related introductions i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elektronika
Elektronika, also spelt Electronika and Electronica (, "Electronics"), is the brand name used for many different electronic products built by factories belonging to the Soviet Ministry of Electronic Industry, including calculators, electronic watches, portable games, and radios. Many Elektronika designs were the result of efforts by Soviet engineers, who were working for the Soviet military–industrial complex but were challenged with producing consumer goods that were in great shortage in the Soviet Union. The brand is still in use in Belarus. Calculators Most notable is a line of calculators, which started production in 1968. The Elektronika calculators were produced in a variety of sizes and function sets, ranging from large, bulky four-function calculators to smaller models designed for use in schools operating on a special, safer 42V standard (like the MK-SCH-2). As time progressed, Elektronika calculators were produced that supported more advanced calculations, with s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Calculator
A scientific calculator is an Electronics, electronic calculator, either desktop or handheld, designed to perform calculations using basic (addition, subtraction, multiplication, Division (mathematics), division) and advanced (Trigonometric functions, trigonometric, Hyperbolic functions, hyperbolic, etc.) mathematical Operation (mathematics), operations and Function (mathematics), functions. They have completely replaced slide rules as well as books of mathematical tables and are used in both educational and professional settings. In some areas of study and professions scientific calculators have been replaced by graphing calculators and financial calculators which have the capabilities of a scientific calculator along with the capability to graph input data and Function (mathematics), functions, as well as by numerical computing, computer algebra, statistical, and spreadsheet software packages running on personal computers. Both desktop and mobile software calculators can also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet Union, it dissolved in 1991. During its existence, it was the list of countries and dependencies by area, largest country by area, extending across Time in Russia, eleven time zones and sharing Geography of the Soviet Union#Borders and neighbors, borders with twelve countries, and the List of countries and dependencies by population, third-most populous country. An overall successor to the Russian Empire, it was nominally organized as a federal union of Republics of the Soviet Union, national republics, the largest and most populous of which was the Russian SFSR. In practice, Government of the Soviet Union, its government and Economy of the Soviet Union, economy were Soviet-type economic planning, highly centralized. As a one-party state go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Fluorescent Display
A vacuum fluorescent display (VFD) is a display device once commonly used on consumer electronics equipment such as video cassette recorders, car audio, car radios, and microwave ovens. A VFD operates on the principle of cathodoluminescence, roughly similar to a cathode-ray tube, but operating at much lower voltages. Each tube in a VFD has a phosphor-coated carbon anode that is bombarded by electrons emitted from the thermionic cathode, cathode filament.Chen, J., Cranton, W., & Fihn, M. (Eds.). (2016). Handbook of Visual Display Technology. doi:10.1007/978-3-319-14346-0 page 1610 onwards In fact, each tube in a VFD is a triode vacuum tube because it also has a mesh control grid. Unlike liquid crystal displays (LCDs), a VFD emits very bright light with high contrast and can support display elements of various colors. Standard illumination figures for VFDs are around 640 Candela per square metre, cd/m2 with high-brightness VFDs operating at 4,000 cd/m2, and experimental un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has a great affinity towards oxygen, passivation (chemistry), forming a protective layer of aluminium oxide, oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, magnetism, nonmagnetic, and ductility, ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the abundance of the chemical elements, 12th-most abundant element in the universe. The radioactive decay, radioactivity of aluminium-26, 26Al leads to it being used in radiometric dating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plastic
Plastics are a wide range of synthetic polymers, synthetic or Semisynthesis, semisynthetic materials composed primarily of Polymer, polymers. Their defining characteristic, Plasticity (physics), plasticity, allows them to be Injection moulding, molded, Extrusion, extruded, or Compression molding, pressed into a diverse range of solid forms. This adaptability, combined with a wide range of other properties such as low weight, durability, flexibility, chemical resistance, low toxicity, and low-cost production, has led to their widespread use around the world. While most plastics are produced from natural gas and petroleum, a growing minority are produced from renewable resources like polylactic acid. Between 1950 and 2017, 9.2 billion metric tons of plastic are estimated to have been made, with more than half of this amount being produced since 2004. In 2023 alone, preliminary figures indicate that over 400 million metric tons of plastic were produced worldwide. If global trends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram
The gram (originally gramme; SI unit symbol g) is a Physical unit, unit of mass in the International System of Units (SI) equal to one thousandth of a kilogram. Originally defined in 1795 as "the absolute Mass versus weight, weight of a volume of pure water equal to Cube (algebra), the cube of the hundredth part of a metre [1 Cubic centimetre, cm3], and at Melting point of water, the temperature of Melting point, melting ice", the defining temperature (0 °C) was later changed to the temperature of maximum density of water (approximately 4 °C). Subsequent redefinitions agree with this original definition to within 30 Parts-per notation, parts per million (0.003%), with the maximum density of water remaining very close to 1 g/cm3, as shown by modern measurements. By the late 19th century, there was an effort to make the Base unit (measurement), base unit the kilogram and the gram a derived unit. In 1960, the new International System of Units defined a '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganja, Azerbaijan
Ganja (; ) is Azerbaijan's List of cities in Azerbaijan, third largest city, with a population of around 335,600.Azərbaycan Respublikası. — 2. Azərbaycan Respublikasının iqtisadi və inzibati rayonları. — 2.4. Azərbaycan Respublikasının iqtisadi və inzibati rayonlarının ərazisi, əhalisinin sayı və sıxlığı, səhifə 66. /Azərbaycanın əhalisi (statistik bülleten) Müəllifi: State Statistics Committee, Azərbaycan Respublikasının Dövlət Statistika Komitəsi. Buraxılışa məsul şəxs: Rza Allahverdiyev. Bakı — 2015, 134 səhifə. The city has been a historic and cultural center throughout most of its existence. It was the capital of the Ganja Khanate until 1804; after Qajar Iran ceded it to the Russian Empire following the Treaty of Gulistan in 1813, it became part of the administrative divisions of the Georgia Governorate, Georgia-Imeretia Governorate, Tiflis Governorate, and Elizavetpol Governorate. Following the dissolution of the Russian Emp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angstrem (company)
Angstrem Joint-stock company, JSC () is a Moscow-based company involved in the design and fabrication of electronic products and semiconductors. It produced a range of Soviet-era integrated circuits. After the fall of the Soviet Union, in 90s it has produced a line of calculators and bank cards. History Soviet Union Angstrem was founded on June 25, 1963, as NII-336 (Research Institute-336). It was later reorganized into the Research Institute of Fine Technology (, , NIITT) and Angstrem Factory as part of Scientific Production Association Science Center. The company, along with Mikron Group, Mikron (Moscow, Zelenograd) and Integral (Belarus, Minsk), was the main manufacturer of integrated circuits in the Soviet Union. In 1981 Angstrem was awarded the Order of the October Revolution. Up until 1991 the company was subject to Ministry of the Electronics Industry (Soviet Union), Ministry of the Electronics Industry, USSR. Russia In 1993 NIITT and Angstrem Factory were privatized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zelenograd
Zelenograd (, , ) is a city and administrative okrug of Moscow, Russia. The city of Zelenograd and the territory under its jurisdiction form the Zelenogradsky Administrative Okrug (ZelAO), an exclave located within Moscow Oblast, north-west of central Moscow, along the M10 highway. Zelenograd is the smallest administrative okrug of Moscow by area, the second-lowest by population, and the largest Moscow exclave by area and by population within Moscow Oblast. Zelenograd, if it were a separate settlement, would be the fifth-largest city in Moscow Oblast and one of the 100 largest cities of Russia. Before the expansion of the territory of Moscow in 2012, Zelenograd occupied second place among the administrative okrugs of Moscow, second only to the Eastern Administrative Okrug, in terms of the share of greenery in its total area (approximately 30%). Zelenograd was founded in 1958 as a new town in the Soviet Union, and developed as a center of electronics, microelectronics and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boguchar
Boguchar () is a town and the administrative center of Bogucharsky District in Voronezh Oblast, Russia, located on the Boguchar River (a tributary of the Don River), south of Voronezh, the administrative center of the oblast. Population: History Isaac Massa's map of Southern Russia printed in 1638 indicates a settlement near the confluence of the Boguchar River with Don called ''Bogunar'' (an apparent misspelling caused by the similarity of Cyrillic letters '' ч'' (ch) and '' н'' (n)). However, it is located on a different place than present-day Boguchar, in particular, on the left bank of the Don River. In the 17th century, the region was inhabited by Don Cossacks, but was devastated during the suppression of the Bulavin Rebellion (1707–08), in which the upper Don Cossacks played a major role. Afterwards, the area has never been a part of the Don Cossack Host, but rather of Sloboda Ukraine and later Voronezh Governorate, since it was settled by the cossacks of U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
