
The IBM 5150: A Time Capsule of Innovation
How a beige box sold in 1981 - the IBM 5150 - rewired business, birthed an industry of clones, handed Microsoft the keys, and quietly seeded the technical conventions that still run the world today.

How a beige box sold in 1981 - the IBM 5150 - rewired business, birthed an industry of clones, handed Microsoft the keys, and quietly seeded the technical conventions that still run the world today.

Lotus 1-2-3 arrived in 1983 and transformed spreadsheets from a niche productivity tool into a business-essential application. This article traces its technical innovations, market consequences, and lasting influence on modern spreadsheet software and broader computing.