<p>The Sharp PC-1251 condensed a capable BASIC computer into a shirt-pocket-sized case. Introduced in 1983, it used Sharp’s SC61860 processor, a 24-character LCD and a compact QWERTY keyboard while offering more speed and memory than the earlier PC-1211.</p><p>Sharp supported it with small printer and cassette interfaces, and closely related PC-1250 and PC-1255 configurations offered different memory capacities. The family also appeared through Radio Shack as the TRS-80 PC-3.</p>
<h6>Notable Features</h6><ul><li>Slim metal case with a 24-character LCD and full BASIC programming keyboard.</li><li>Sharp’s 11-pin peripheral connector supported printers and cassette interfaces.</li><li>Closely related PC-1250, PC-1251H and PC-1255 models differed mainly in memory and market.</li></ul><h6>Historical Significance</h6><ul><li>Continued Sharp’s influential pocket-computer line in a much smaller format.</li><li>The related PC-1250 was sold by Radio Shack as the TRS-80 Pocket Computer PC-3.</li></ul><h6>Collector's Notes</h6><ul><li>LCD bleeding and weakened keyboard contacts are common age-related faults.</li><li>Matching CE-125 or CE-126P printer/cassette units add considerably to a complete system.</li></ul>
| Technical Information | |
|---|---|
| Name | Sharp PC-1251 |
| Manufacturer | Sharp |
| Launched | Saturday, January 1, 1983 |
| Launch Price | US$145 |
| Country | Japan |
| CPU | Sharp SC61860 8-bit CMOS processor at 576 kHz |
| Units Sold | |
| Related Models | PC-1250, PC-1251H, PC-1255 and Radio Shack PC-3 |
| Power | Two CR2032 lithium cells |
| Expansion | 11-pin connector for CE-124, CE-125P and CE-126P accessories |
| Storage | Internal RAM; cassette through optional interface |
| Keyboard | Compact QWERTY and numeric keyboard |
| Language | Sharp S-BASIC |
| Display | 24-character single-line LCD |
| ROM | 16KB |
| RAM | 4KB on the PC-1251 |
| CPU Speed | 576 kHz |
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