Hitachi 3050RX 100C

Hitachi 3050RX 100C
© RDI 1996

Hitachi 3050RX 100C were Japanese RISC laptops for Unix computing, introduced in 1994. Hitachi was a PRO consortium member for HP PA-RISC computers; the 3050RX line used stock PA-RISC processors but also some custom Hitachi designs. The 100C was based on such a custom Hitachi PA/50L processor.

Hitachi 3050RX 100C were possibly compatible with HP 9000 PA-RISC workstations but used custom Hitachi HI-UX/WE2 Unix, a modified HP-UX. 100C were apparently used for multi-media processing of the 1990s. It is unclear if the 100C was a laptop with battery or portable computer with AC (60W).

Hitachi 3050RX 100C
Based on Custom Hitachi
Introduced 1994
CPU PA/50L 33 MHz
Cache 8/4 KB L1
Design 32-bit RISC Hitachi PA-RISC (PRO)
RAM 16-80 MB
Video
Screen 10.4″ TFT 1024˜768 (512)
Drives SCSI (0.5G), 21M floptical drive
Expansion PC Card
I/O SCSI, VGA, Ethernet, serial, parallel
OS HI-UX/WE2
Price ¥1,350,000

Hitachi 3050RX 100C were RISC laptops designed for Unix with Hitachi’s custom HP-UX Unix implementation HI-UX/WE2. There were two other PA-RISC laptops in the 1990s, SAIC Galaxy portable and Tadpole PrecisionBook, both for HP-UX.

Hitachi PA/50L were custom Hitachi PA-RISC low-cost processors, which Hitachi used apparently only in two computers in the 1990s. Not much further technical information is available for Hitachi 3050RX 100C Laptops.

Benchmarks

SPEC benchmark data and comparisons to contemporary laptops and workstations:

System CPU SPEC92 int SPEC92 fp SPEC95 int SPEC95 fp
Hitachi 3050RX/100C PA/50L 33 MHz about 42 MIPS
Comparison
Tadpole SPARCbook 1 CY7C600 SPARC
25 MHz		 about 18 MIPS
Tadpole SPARCbook 2 CY6111 SPARC
40 MHz 		21.8* 21.5* nearly 30 MIPS

Documentation

Specifications

Announcements

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