The Sharp PC-122 is a small, handheld computer which was released in 1980. It was also marketed as the Tandy TRS-80 PC1. 

The pocket computer which measures only 175 x 70 x 17 mm, and weighs 170g, was named as a "contender for the title of the first genuine pocket computer" by Practical Computing in July 1980. The pocket computer featured a 57-key alpha-numeric keyboard, 24-character 7x5 dot matrix LCD display, connector for printer and tape drive, and was powered by four 1.5 V lithium button cell batteries, which claimed to provide 300 hours of battery life. The computer had a memory capacity of 1,424 steps and a resident Basic interpreter containing 15 mathematical functions, 21 statements, six commands and six control statements. The interpreter is a shortened form of standard Basic.

This model was powered by a 4-bit CPU laid out in power-saving CMOS circuitry. 

This example in our collections comes in a case with a printer/cassette interface and has the serial number: 11001337. It was kindly donated by Alan Leeson.

Manufacturer: Sharp
Date: 1980

This exhibit has a reference ID of CH1563. Please quote this reference ID in any communication with the Centre for Computing History.