IBM PALM processor

The IBM PALM processor (Put All Logic in Microcode) is a board-level 16-bit central processing unit used in the IBM 5100 Portable Computer, a predecessor of the IBM PC. PALM was also used in the IBM 5110 and IBM 5120 follow-on machines. PALM was likely used in other IBM products as an embedded controller. In 1973 the IBM Los Gatos Scientific Center developed a portable computer prototype called SCAMP (Special Computer APL Machine Portable) based on the IBM PALM processor with a Philips compact cassette drive, small CRT and full function keyboard.

IBM PALM processor

The IBM PALM processor (Put All Logic in Microcode) is a board-level 16-bit central processing unit used in the IBM 5100 Portable Computer, a predecessor of the IBM PC. PALM was also used in the IBM 5110 and IBM 5120 follow-on machines. PALM was likely used in other IBM products as an embedded controller. In 1973 the IBM Los Gatos Scientific Center developed a portable computer prototype called SCAMP (Special Computer APL Machine Portable) based on the IBM PALM processor with a Philips compact cassette drive, small CRT and full function keyboard.