Compact System for Professionals

Once mentioned in Parliament[source: https://hansard.parliament.uk/Commons/1983-04-27/debates/3cec942d-e309-4093-be07-ab520e7c2511/MicrocomputerManufacturers] as one of only two British computer manufacturers on the government's Central Computer and Telecommunications Agency list of approved suppliers to have also been members of the British Microcomputer Manufacturers Group - the other being [@Comart]  - Casu seemed to specialise in compact desktop microcomputers, with models including the Mini C and this, the Micro PX.

Based in Uxbridge, Middlesex, the company's unusual name was said to have been formed from the first names of the founder's daughters - Caroline and Suzanne[source: https://forum.vcfed.org/index.php?threads/casu-c-max-or-mini-c.1247246/]. 

It was also another of those companies that despite building micros with components which mostly came from the Far East or the US, liked to claim its computers as being all-British.

The Micro PX, measuring only 30 centimeters square, was based on a 6MHz Intel iAPX 186, otherwise known as the 80186 - a processor that wasn't hugely popular as it wasn't motherboard-compatible with the rest of Intel's x86 line, although that didn't stop PRAC from calling it "the chip to have"[source: "Casu Micro-PX", PRAC, June 1984, p. 13] in its June 1984 issue.

Casu's compact micro shipped with 256K of RAM, 3½" floppy drives formatted to 737K, and Concurrent CP/M 3.1, which by now had been renamed as Concurrent DOS version 4 in an effort to distance itself from its 1970s legacy. 

The single-disk version of the micro retailed for £1,650, or about [[1650|1984]] in [[now]], with the 20M Rodime Winchester system going out for £3,450 - that's a hefty [[3450|1984]] now.