binary covering
81IBM Selectric typewriter — The IBM Selectric typewriter (occasionally known as the IBM Golfball typewriter) is an influential electric typewriter design. It was introduced in 1961.Instead of a basket of pivoting typebars the Selectric had a pivoting type element… …
82IBM System/36 — The IBM System/36 was a minicomputer marketed by IBM from 1983 to 2000. It was a multi user, multi tasking successor to the System/34. Like the System/34 and the older System/32, the System/36 was primarily programmed in the RPG II language. One… …
83Kumi Koda — Infobox Musical artist Name = Kumi Koda 倖田 來未 Img capt = Background = solo singer Birth name = Kumiko Kōda Born = birth date and age|1982|11|13 Died = Origin = Kyoto, Japan Instrument = Singing Genre = J Pop, R B Occupation = Singer, Songwriter… …
84Moore School Lectures — Theory and Techniques for Design of Electronic Digital Computers (popularly called the Moore School Lectures ) was a course in the construction of electronic digital computers held at the University of Pennsylvania s Moore School of Electrical… …
85Median graph — The median of three vertices in a median graph In mathematics, and more specifically graph theory, a median graph is an undirected graph in which any three vertices a, b, and c have a unique median: a vertex m(a,b,c) that belongs to shortest… …
86Doppler imaging — Not to be confused with Doppler ultrasound. Inhomogeneous structures on stellar surfaces, i.e. temperature differences, chemical composition or magnetic fields, create characteristic distortions in the spectral lines due to the Doppler effect.… …
87literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
88Group action — This article is about the mathematical concept. For the sociology term, see group action (sociology). Given an equilateral triangle, the counterclockwise rotation by 120° around the center of the triangle acts on the set of vertices of the… …
89Unicode — For the 1889 Universal Telegraphic Phrase book, see Commercial code (communications). The Unicode official logo since October 2009 …
90Packing problem — Part of a series on Puzzles …
