Original Publication Date: 1989-Mar-01
Included in the Prior Art Database: 2005-Jan-27
Disclosed is a display station attached to a read-only memory wherein program modules are stored in the read-only memory in compressed form, the program modules selected from the read-only memory are decompressed and stored in a random-access memory, and the operations of the display terminal are performed by accessing the program modules stored in the random-access memory. Referring to the figure, the read-only memory (ROM) card is attached to the display terminal which includes the random-access memory (RAM) and a keyboard. The ROM stores various program modules M1, M2, ..., Mn and an address conversion program module. All the program modules are stored in compressed form. When the display terminal is powered on, a set-up program which is set by an user specifies the program modules to be fetched from the ROM.