Sharp PC-1403

<p>The Sharp PC-1403 was an advanced scientific pocket computer that combined programmable BASIC with dedicated calculator functions, matrix mathematics and a wider 24-character display. Released in 1987, it offered 8KB of RAM in a very slim case.</p><p>Also marketed in related forms as the PC-1403H and EL-5500III, it continued Sharp’s successful approach of placing a real programmable computer behind the familiar controls of a scientific calculator.</p>

<h6>Notable Features</h6><ul><li>Scientific calculator functions included matrix operations.</li><li>Wider 24-character LCD improved program entry and results display.</li><li>Combined instant calculator operation with S-BASIC programmability.</li></ul><h6>Historical Significance</h6><ul><li>Advanced the PC-1401 concept with greater memory, speed and mathematical capability.</li><li>Sold in closely related PC-1403H and EL-5500III versions.</li></ul><h6>Collector's Notes</h6><ul><li>The many small keys should be checked for reliable response.</li><li>Original manuals are particularly useful because the scientific and matrix functions are extensive.</li></ul>

Specifications

Technical Information
Name	Sharp PC-1403
Manufacturer	Sharp
Launched	Thursday, January 1, 1987
Launch Price	US$99.95
Country	Japan
CPU	Sharp SC61860A31 8-bit CMOS processor at 768 kHz
Units Sold
Related Models	PC-1403H and EL-5500III
Power	Two CR2032 lithium cells
Expansion	11-pin Sharp peripheral connector
Keyboard	Scientific keypad and compact QWERTY keyboard
Calculator	Scientific and matrix functions
Language	Sharp S-BASIC
Display	24-character single-line LCD
ROM	Up to 32KB program ROM plus processor firmware
RAM	8KB
CPU Speed	768 kHz