HP Roman is a family of single byte character encodings supporting several Latin script based languages of Europe.
It was originally introduced by Hewlett-Packard around 1978 as 7- and 8-bit HP Roman Extension for some of their computer terminals and printers.
[1] Soon later, this became the default character set of the HP-UX[2] operating system and the page description language PCL for inkjet[3] and laser printers in 1984.
The character set was originally introduced by Hewlett-Packard as extended ASCII 7-bit codepage named HP Roman Extension,[9][10] which existed at least since 1978.
The final 1985 revision of the secondary character set was also standardized by IBM in 1989 as code page 1050 (CP1050 or ibm-1050).
[16] Although strictly speaking not part of Roman Extension, the following table shows those rows of the primary character set that differed from ASCII.
HP Roman-8 is an 8-bit single byte character encoding that is mainly used on HP-UX[2] and many Hewlett-Packard[7] and PCL compatible printers.
The HP 49/50 series of calculators use a different character set[69] based on ECMA-94 / ISO 8859-1 which includes the euro symbol.