Baby AT

Updated: 02/07/2022 by Computer Hope

A replacement for the Full AT motherboard and sometimes referred to as BAT, the Baby AT is a motherboard form factor introduced by IBM in 1985. It is used with the 286, 386, 486, and Pentium computers up until the early 1990s. The Baby AT is 8.57" wide x 13.04" deep, which is almost the same as the original IBM XT motherboard but with different screw hole positions to fit into AT-style case. The Baby AT is now considered obsolete and was replaced by ATX.

AT, ATX, BAT, Computer acronyms, Form factor, Full AT, Motherboard terms, P8 and P9 connector