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C.a.R.– Compass and Ruler (also known as Z.u.L., which stands for the German "Zirkel und Lineal") — is a free and open source interactive geometry app that can do geometrical constructions in Euclidean and non-Euclidean geometry. The software is Java based. The author is René Grothmann of the Catholic University of Eichstätt-Ingolstadt.
Live Geometry is a free CodePlex project that lets you create interactive ruler and compass constructions and experiment with them. It is written in Silverlight 4 and C# 4.0 (Visual Studio 2010). The core engine is a flexible and extensible framework that allows easy addition of new figure types and features.
The Grid Compass is a family of laptop computers introduced in 1982 by the Grid Systems Corporation. The design for the Compass was rendered by Bill Moggridge . Owing to its clamshell design —the first in a portable computer —some historians credit the original Compass as the first ever laptop.
A follow-up to the success of the Schneider CPC series, the Euro PC offered an inexpensive entry into the emerging market for home PCs. The computer used a Siemens 8088 processor (clocked at 4.77, 7.15 or 9.54 MHz according to a BIOS setting or key combination), had 512 KB of RAM (expandable to 640 KB), and was shipped with MS-DOS 3.3 and ...
The term 64-bit also describes a generation of computers in which 64-bit processors are the norm. 64 bits is a word size that defines certain classes of computer architecture, buses, memory, and CPUs and, by extension, the software that runs on them. 64-bit CPUs have been used in supercomputers since the 1970s (Cray-1, 1975) and in reduced ...
The designs were licensed to the German consumer electronics company Schneider, which slightly modified their appearance and consequently sold them as "Joyce" and "Joyce Plus". [17] The partnership between Amstrad and Schneider had been formed to market the Amstrad CPC range of computers, and broke up when Amstrad launched the PCW9512.
Schneider Electric SE is a French multinational corporation that specializes in digital automation and energy management. [ 3 ] [ 4 ] Schneider Electric is a Fortune Global 500 company, publicly traded on the Euronext Exchange, and is a component of the Euro Stoxx 50 stock market index . [ 5 ]
The 1512's influence was such that the UK PC magazine PC Plus originally targeted itself at the "Amstrad PC 1512 and compatibles", since home ownership of other PCs at the time was rare. The PC1512 shipped with 512 KB of RAM ; it could be upgraded to 640 KB of RAM with 16 pieces of 4164-120 Dynamic RAM chips (64KBx1 per chip) and setting a ...