Early computer

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Possible Answers: ENIAC, ABACUS, UNIVAC.

Last seen on: –Wall Street Journal Crossword – August 08 2022 – Secret Agents
Wall Street Journal Crossword – August 07 2022 – Secret Agents
Wall Street Journal Crossword – August 06 2022 – Secret Agents
LA Times Crossword 14 Oct 21, Thursday
NY Times Crossword 3 Jan 21, Sunday
LA Times Crossword 9 Oct 20, Friday
The Washington Post Crossword – Apr 19 2020
Universal Crossword – Jun 9 2019
Newsday.com Crossword – Dec 23 2018

Random information on the term “ENIAC”:

The history of computing is longer than the History of hardware and modern computing technology and includes the history of methods intended for pen and paper or for chalk and slate, with or without the aid of tables. The timeline of computing presents a summary list of major developments in computing by date.

Digital computing is intimately tied to the representation of numbers. But long before abstractions like the number arose, there were mathematical concepts to serve the purposes of civilization. These concepts are implicit in concrete practices such as :

Eventually, the concept of numbers became concrete and familiar enough for counting to arise, at times with sing-song mnemonics to teach sequences to others. All known languages have words for at least “one” and “two” (although this is disputed: see Piraha language), and even some animals like the blackbird can distinguish a surprising number of items.

Advances in the numeral system and mathematical notation eventually led to the discovery of mathematical operations such as addition, subtraction, multiplication, division, squaring, square root, and so forth. Eventually the operations were formalized, and concepts about the operations became understood well enough to be stated formally, and even proven. See, for example, Euclid’s algorithm for finding the greatest common divisor of two numbers.

ENIAC on Wikipedia

Random information on the term “UNIVAC”:

The Remington Rand 409 control panel programmed punched card calculator, designed in 1949, was sold in two models: the UNIVAC 60 (1952) and the UNIVAC 120 (1953). The model number referred to the number of decimal digits it could read from each punched card.

The machine was designed in “The Barn”, at 33 Highland Ave. in Rowayton, Connecticut, a building that currently houses the Rowayton Public Library and Community Center.

These machines were discontinued when the UNIVAC 1004 was introduced in 1962. About 1000 total had been produced by 1961.

Numbers were fixed-point and of variable length (one to ten digits). Arithmetic was done in floating point, but all results were converted to fixed point when stored in memory.

Digits are represented in bi-quinary coded decimal. Each digit of memory storage contained five tubes. Four of these represented the digits 1, 3, 5, and 7, while the fifth tube represented 9 if activated alone but added 1 to the value if activated together with another tube.

UNIVAC on Wikipedia