Sharp Pocket Computer PC-G830 with Instruction Manual, Working Condition, Retro Electronics This is a SHARP pocket computer PC-G830 and its instruction manual. * Main Unit: Shows some signs of use and minor scratches due to age, but has been confirmed to be in working order. Basic key input and screen display were confirmed to be functioning without issues. * LCD Screen: The display is relatively good (please check the photos). * Instruction Manual: Included. Shows yellowing and creases due to age. * Other Accessories: Everything shown in the photos is included. Batteries are not included; please prepare four AA batteries. In preparation for listing, I tried programming in BASIC, but I've forgotten how to use it. I used to be able to write programs that filled the memory capacity. After getting used to touch panels, I find key operations cumbersome. The PC-G830 is a model that allows you to learn and develop in BASIC, as well as assembly language, CASL, C language, and machine language. How about it for learning programming, doing simple calculations, or taking notes? Recommended for those who like retro electronics and those interested in learning programming. The instruction manual contains information on languages and various commands, so you can use it as a programming textbook as is. Please understand that this is a used item before purchasing. Please check the condition of the product in the photos. 【Main Specifications】 * Manufacturer: SHARP * Model: PC-G830 * Languages: BASIC, Assembler * LCD Display: Monochrome * Power: 4 x AA batteries (sold separately) Please feel free to ask if you have any questions. There are no major damages or stains, but there are small scratches and dirt. I hope someone who needs it will use it. Please refrain from purchasing if you are sensitive to used items. My listings related to home appliances: \#hisapa家電 SHARP PC-G830 pocket computer, BASIC and C language compatible, with instruction manual * Brand: SHARP * Model: PC-G830 * Function: Pocket Computer * Instruction Manual: Included * Programming Languages: BASIC, C, Assembler