The first IBM PC is the Compaq Portable.
Depends on how you want them to be compatible.
IBM announced the IBM 701 on April 29, 1952. The first production machine sold, serial number 2, was delivered to Los Alamos Scientific Lab on March 31, 1953; it was installed and operational three days later.
First IBM PC (Personal Computer) was IBM model number5150, which was introduced on August 12, 1981.IBM's first electronic digital computer was the 701 Defense Calculator, introduced in 1952.IBM's first computer was the Harvard Mark I, in 1942, but it was electromechanical.
The first computer close to as we know them today was made by IBM
IBM launched their first personal computer (model number 5150) on August 12, 1981.
IBM Portable Personal Computer was created in 1984.
The first portable computer was the IBM 5100.However, the first laptop-sized portable computer was the Epson HX-20.
The first portable computer was released in 1975 by IBM but the first portable computer using the term "laptop" was released in 1983.
Depends on how you want them to be compatible.
The IBM 5100 was formed in September 1975. It was the first commercially available portable computer.
IBM announced the IBM 701 on April 29, 1952. The first production machine sold, serial number 2, was delivered to Los Alamos Scientific Lab on March 31, 1953; it was installed and operational three days later.
IBM compatible is a term used to describe a computer, hardware or software that is IBM/PC Compatible. This does not necessarily mean that the computer was manufactured by http://wiki.answers.com/../../comp/ibm.htm.Today, the majority of computers manufactured and used are either IBM or http://wiki.answers.com/../../comp/apple.htmhttp://wiki.answers.com/../m/macintos.htmcompatible.
PC Compatible
IBM The IBM SCAMP project (Special Computer APL Machine Portable)
First IBM PC (Personal Computer) was IBM model number5150, which was introduced on August 12, 1981.IBM's first electronic digital computer was the 701 Defense Calculator, introduced in 1952.IBM's first computer was the Harvard Mark I, in 1942, but it was electromechanical.
PC compatible
IBM no longer produces hardware that is compatible with Windows '98 but it will run on a recent Apple computer within the Virtual Box software. (See links below)