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IBM PC 5140 Convertible

IBM PC 5140 Convertible

Price: $5,000.00 currently not available     
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IBM PC 5140 Convertible

It has an Intel 80c88 CPU (a CMOS version of the Intel 8088) running at 4.77 MHz. 256 kB of RAM (expandable to 512 kB), dual 720 kB 3.5" floppy drives, and a monochrome CGA-compatible LCD screen. Weight: 13 pounds. Has an in-built carrying handle.

IBM PC ConvertibleThe IBM PC Convertible, released April 3, 1986, was IBM's first laptop computer and was also the first IBM computer to utilize the now-standard 3.5" floppy disk. Like modern laptops, it featured power management and the

ability to run from batteries. It was the follow-up to the IBM Portable and was model number 5140. IBM had little luck with it's portable models, and realized to keep up, they needed a laptop. IBM came up with the 5140, it was a laptop that could be converted into a main desktop in seconds.

The LCD screen detaches for a color CRT to be attached. IBM didn't sell many of these due to the fact the LCD was not backlit, and conpetition was less expensive.

The PC Convertible had expansion capabilities through a proprietary ISA bus-based port on the rear of the machine.

Extension modules, including a small printer and a video output module, could be snapped into place.

The machine could also take an internal modem, but there was no room for an internal hard disk. Pressing the power button on the computer did not turn it off, but put the machine into a "suspend" mode. This avoided the long process of booting up.

The IBM PC Convertible (IBM 5140) of 1986 featured the latest in surface mount technology, which permitted electronic components to be mounted onto circuit boards, allowing more components to be placed in a smaller area.

Weighing less than 13 pounds, the 5140 combined full computing power with portability and compatibility with other IBM Personal Computers.

A wonderful antique computer from the great IBM to have as part of any Antique computer collection. Not many available out there.
Last Updated: 2 Oct 2007 07:08:00 PDT home  |  about  |  terms  |  contact
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