four-row keyboard
71Calendar of 2001 — ▪ 2002 January America has never been united by blood or birth or soil. We are bound by ideals that move us beyond our backgrounds, lift us above our interests and teach us what it means to be citizens. Every child must be taught these principles …
72Mechanical calculator — An old Russian mechanical calculator. A mechanical calculator is a device used to perform the basic operations of arithmetic. Mechanical calculators are comparable in size to small desktop computers and have been rendered obsolete by the advent… …
73Mozart family grand tour — Wolfgang Amadeus Mozart in 1763, aged seven, at the start of the Grand Tour. He is wearing livery presented by the Empress of Austria the previous winter. The Mozart family grand tour …
74Arabic alphabet — Infobox Writing system name=Arabic abjad type=Abjad languages= Arabic, Persian, Kurdish, Baloch, Urdu, Pashto, Sindhi, Malay (limited usage) and others. time=400 CE to the present fam1=Proto Canaanite fam2=Phoenician fam3=Aramaic fam4=Nabataean… …
75Musical instrument — A musical instrument is a device created or adapted for the purpose of making musical sounds. In principle, any object that produces sound can serve as a musical instrument it is through purpose that the object becomes a musical instrument. The… …
76Musique concrète — (French for concrete music ) is a form of electroacoustic music that utilises acousmatic sound as a compositional resource. The compositional material is not restricted to the inclusion of sounds derived from musical instruments or voices, nor to …
77Compose key — The compose key and compose LED on Sun Type 5, 6 and 7 keyboards is the second last key on the bottom row …
78Pink Floyd — This article is about the rock band. For the fictional character, see Pink Floyd (fictional character). Pink Floyd …
79Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
80PlayStation 3 — PS3 redirects here. For other uses, see PS3 (disambiguation). PlayStation 3 …
