Hewlett-Packard Co has extended its HP 9000 Series 1200 line of fault-tolerant Unix systems sourced from Sequoia Systems Inc downwards with the launch of the entry-level HP 9000 Model 1210, claiming that it substantially outperforms fault-tolerant offerings of Tandem Computers Inc, Stratus Computer Inc and Digital Equipment Corp by as much as 100% in transaction processing work. It uses 25MHz 68040 processors for two- to four-way symmetric multiprocessing, can support up to 192Mb of shadowed memory, mirrored disks up to 52Gb and up to 900 users. It is pitched primarily at telecommunications companies and the medical maket.The HP 9000 Model 1210 is $165,000 and it performs up to 40 transactions per second.