Elka 22

Last updated
The ELKA 22 Elka-22 (I197211).png
The ELKA 22
The ELKA 22M Elka 22M.jpg
The ELKA 22M

The Elka 22 was the second Bulgarian electronic calculator; it was released in 1966 and its serial production began in 1967 in the town of Silistra. Weighing 8.5 kilograms (18.7 pounds), the Elka 22 has 3 registers and operates with 12 decimal digits. Addition speed is 0.3 seconds per operation, and division speed is 0.5 seconds. Its power consumption is 35 watts. [1] This calculator has a plastic case, a nixie tube display and its technology is based on numerous phenol boards populated with hundreds of discrete transistors, diodes and resistors, not unlike other calculator models developed around the mid-1960s. The machine used a magnetic-core memory.

Related Research Articles

<span class="mw-page-title-main">Calculator</span> Electronic device used for calculations

An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics.

Koenigsegg Automotive AB is a Swedish manufacturer of high-performance sports cars based in Ängelholm, Skåne County, Sweden.

<span class="mw-page-title-main">Sinclair Scientific</span> Scientific calculator introduced in 1974

The Sinclair Scientific was a 12-function, pocket-sized scientific calculator introduced in 1974, dramatically undercutting in price other calculators available at the time. The Sinclair Scientific Programmable, released a year later, was advertised as the first budget programmable calculator.

<span class="mw-page-title-main">Exposure value</span> Measure of illuminance for a combination of a cameras shutter speed and f-number

In photography, exposure value (EV) is a number that represents a combination of a camera's shutter speed and f-number, such that all combinations that yield the same exposure have the same EV. Exposure value is also used to indicate an interval on the photographic exposure scale, with a difference of 1 EV corresponding to a standard power-of-2 exposure step, commonly referred to as a stop.

ELKA, Elka, or Elkas may refer to:

<span class="mw-page-title-main">Noble Automotive</span> English automotive company

Noble Automotive Ltd, more commonly known simply as Noble, is an English sports car manufacturer based in Leicester. Noble Automotive Ltd. was established in 1999 by Lee Noble in Leeds, West Yorkshire, for producing high-speed sports cars with a rear mid-engine, rear-wheel drive layout. Lee Noble was the chief designer and part owner of Noble. The company was sold in August 2006. He left the company in February 2008 and shortly after announced his new venture, Fenix Automotive in 2009.

<span class="mw-page-title-main">Guide number</span> Photoflash exposure setting measurement

When setting photoflash exposures, the guide number (GN) of photoflash devices is a measure photographers can use to calculate either the required f‑stop for any given flash-to-subject distance, or the required distance for any given f‑stop. To solve for either of these two variables, one merely divides a device's guide number by the other.

<span class="mw-page-title-main">AutoIt</span> Scripting language to automate tasks in Microsoft Windows

AutoIt is a freeware programming language for Microsoft Windows. In its earliest release, it was primarily intended to create automation scripts for Microsoft Windows programs but has since grown to include enhancements in both programming language design and overall functionality.

<span class="mw-page-title-main">PFC Beroe Stara Zagora</span> Bulgarian football club

Professional Football Club Beroe Stara Zagora, better known as just Beroe, is a Bulgarian professional association football club based in Stara Zagora, that competes in the First League, the top division of the Bulgarian football league system. The club was founded in 1916 under the name Vereya. The club's colours are green and white.

Pravetz is a brand of personal computers produced in Bulgaria from 1979. They were widely used in scientific organizations and schools until the 1990s.

<span class="mw-page-title-main">Porsche 911 GT2</span> Motor vehicle

The Porsche 911 GT2 is a high-performance, track-focused sports car built by the German automobile manufacturer Porsche from 1993 to 2009, and then since 2010 as the GT2 RS. It is based on the 911 Turbo, and uses a similar twin-turbocharged engine, but features numerous upgrades, including engine enhancements, larger brakes, and stiffer suspension calibration. The GT2 is significantly lighter than the Turbo due to its use of rear-wheel-drive instead of all-wheel-drive system and the reduction or removal of interior components. As a result, the GT2 is the most expensive and fastest model among the 911 lineup.

<span class="mw-page-title-main">Bicycle performance</span>

Bicycle performance is measurable performance such as energy efficiency that affect how effective a bicycle is. Bicycles are extraordinarily efficient machines; in terms of the amount of energy a person must expend to travel a given distance, cycling is calculated to be the most efficient self-powered means of transportation.

<span class="mw-page-title-main">Elektronika MK-52</span>

The Elektronika MK-52 is an RPN-programmable calculator manufactured in the Soviet Union from 1983 to 1992 at the Quasar and Kvadr plants in Ukraine. It belongs to the third generation of Soviet programmable calculators. Its original selling price was 115 rubles.

<span class="mw-page-title-main">ELKA</span>

ELKA is a Bulgarian brand of electronic calculator, developed by the Central Institute for Computation Technologies(bg) and built at the Elektronika plant in Sofia. The name is a contraction of ЕЛектронен КАлкулатор, or "electronic calculator", and the word elka has, by extension, become the generic name for a calculator.

<span class="mw-page-title-main">Institute of Mathematics and Informatics</span>

The Institute of Mathematics and Informatics was established in 1947 as Institute of Mathematics at the Bulgarian Academy of Sciences.

<span class="mw-page-title-main">Koenigsegg Agera</span> Swedish mid-engine sports car

The Koenigsegg Agera is a mid-engine sports car produced by Swedish car manufacturer Koenigsegg. It is a successor to the CCX/CCXR. The name comes from the Swedish verb 'agera' which means "to act" or in imperative form "(You) act".

<i>Hot in Cleveland</i> American television sitcom

Hot in Cleveland is an American television sitcom aired on TV Land and starring Valerie Bertinelli, Jane Leeves, Wendie Malick, and Betty White.

<span class="mw-page-title-main">Scott Flansburg</span> American mathematician

Scott Flansburg is an American dubbed "The Human Calculator" and listed in the Guinness Book of World Records for speed of mental calculation. He is the annual host and ambassador for The National Counting Bee, a math educator, and media personality. He has published the books Math Magic and Math Magic for Your Kids.

<span class="mw-page-title-main">National Polytechnical Museum</span> Science museum in Sofia, Bulgaria

The National Polytechnical Museum is a science museum located in Sofia, Bulgaria.

<span class="mw-page-title-main">Bugatti Chiron</span> Sports car manufactured by Bugatti

The Bugatti Chiron is a mid-engine two-seater sports car designed and developed in Germany by Bugatti Engineering GmbH and manufactured in Molsheim, France, by French automobile manufacturer Bugatti Automobiles S.A.S. The successor to the Bugatti Veyron, the Chiron was first shown at the Geneva Motor Show on 1 March 2016. The car's design was initially previewed with the Bugatti Vision Gran Turismo concept car unveiled at the 2015 Frankfurt Auto Show.

References

  1. Frolov, Sergei (1999-12-19). "ELKA-22 Bulgarian Calculator". Soviet Digital Electronics Museum. Archived from the original on 2015-05-26. Retrieved 2014-08-17., pictures at the website