IBM PORTABLE PERSONAL COMPUTER MODEL 5155 - Good working condition - The IBM Portable Personal Computer 5155 Model 68 consists of a lightweight case with a carrying handle containing a built-in. 9-inch, amber composite display, two 5 1/4-inch double sided diskette drive.The unit also has a keyboard and a universal power supply. The system board is the same as that of the IBM Personal Computer XT with 256Kb of memory that is expandable to 512Kb using the memory expansion option. Five expansion slots are available for the connection of most IBM Personal Computer options.