[Junk] A SHARP pocket computer with 64KB of memory, providing scientific constants and formulas. - Brand: SHARP - Model Name: PC-E650 - Memory: 64KB - Features: Scientific constants and formulas - Country of Manufacture: Japan Thank you for viewing. This is a SHARP PC-E650 pocket computer. I inserted new batteries and turned it on, but it did not work. The original batteries had leaked, so it might work if the battery contacts are cleaned. I bought it new 27 years ago and used it for about 4 years. It has been stored unused since then. This item is listed as [Junk], assuming it will be used for parts or as a collector's item.