NCR has also announced an entry-level Micro Channel Architecture-based workstation in its System 3000 series. It use a 20MHz Intel 80486SX processor – upgradable to 25MHz or 33MHz parts – comes with from 4Mb to 64Mb RAM, runs Unix, MS-DOS and OS/2, has serial, parallel and SCSI interfaces and ships from the third quarter in the UK. In addition, NCR is now offering 50MHz Intel 80486 upgrades for its 3445 systems which support MS-DOS, OS/2, Unix System V.4 and Santa Cruz Operation Inc Unix. Uni-processor upgrades start at UKP5,000 – multi-processor configurations begin at UKP15,500 – they will be available in the third and the fourth quarters respectively.