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Sharp PC-1403
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==Technical specifications== {| class="wikitable" | [[Image:Sharp PC-1403H front.jpg|thumb]] | [[Image:Sharp PC-1403H rear.jpg|thumb]] |} * CPU: Hitachi SC61860 (8-bit CMOS) 768 kHz * Memory: 8 KB [[RAM]] (6863 bytes available), 72 KB ROM; 32 KB RAM in '''PC-1403H''' model * Display: Monochrome [[LCD]] 1 line with 24 5Γ7 characters * Power: 6 V DC - 2Γ CR2032, 0.03 W * Connector (11 pins) for external devices * Integrated speaker (4 kHz beep only) * Contrast adjustment wheel * Software: Simple BASIC interpreter; calculator mode * Matrix calculations Manufacturing started in 1986. It is possible to convert the 1403 to a 1403H by removing the 8 K RAM and soldering in a 32 K RAM. An inverter IC is needed for this, too.
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