The IBM ThinkPad series turned 34 years old as of October 2026, with the first model released in October 1992.
What’s Happening
The IBM ThinkPad line began in October 1992 under IBM, making any machine from before that year either a prototype or replica.
Lenovo picked up the ThinkPad brand in May 2005, so any "IBM" ThinkPad released after that is technically a Lenovo product. The first fully Lenovo-designed model, the T60, hit shelves in 2006. Anything older than 1992? That’s either a museum piece, a film prop, or a very patient collector’s item.
Step-by-Step Solution
To find your ThinkPad’s age, locate the model number on the bottom sticker, then cross-reference it with Lenovo’s official specs.
- Flip your ThinkPad over and read the model number (e.g., T480s, X1 Carbon Gen 9).
- Jot down the serial number, a 7-character code that starts with a letter (e.g., PF12345).
- Hit Windows key + Pause/Break to open the System window and peek at the “Model” field.
- Match your model to the release year in the table below or search Lenovo PC Support for the exact date.
| Model Series | First Release | IBM or Lenovo |
|---|---|---|
| 700, 701c, 720, 750, 755 | October 1992 | IBM |
| 300, 310, 340, 350, 360, 365, 370 | 1993–1994 | IBM |
| 500, 510, 550, 560, 570 | 1994–1995 | IBM |
| 240, 380, 390, 580, 590, 600, 760, 765, 770 | 1995–1996 | IBM |
| A20m, A21m, A21p, A22m, A22p, T20–T30, X20–X30 | 1999–2002 | IBM |
| T4x, R5x, X4x | 2003–2005 | IBM design, Lenovo manufacture |
| T60, T61, X60, X61, Z60, Z61 | 2006–2008 | Lenovo design |
| T400–T490, X1 Carbon Gen 1–9 | 2008–present | Lenovo |
