IBM PC 5150 Model Numbers

The article provides a detailed account of the model numbers of the original IBM PC 5150. It uncovers the mystery behind the model numbering scheme and includes a summary of officially announced models with specifications, pricing, and their associated introduction dates.

• Original IBM PC used a 7-digit part number for peripherals.
• IBM PC Type 5150 extended with 3-digit model number.
• Early 5150 model numbers are poorly documented.
• IBM announcements give reliable information post-1983.
• Model numbering likely followed a logical scheme.