logic array การใช้

Jupiter Cantab was new to the market and the designers could not afford to use an uncommitted logic array ( ULA ), a design approach then gaining popularity in other computers ( such as the ZX 81 ) to reduce component count, because these were not economical in small quantities.
The idea is to get the starting price very low, but not preclude expansion in the long term . " The company reduced the number of chips in the Electron by 90 % from the BBC Micro's about 100, with most functionality on a single Uncommitted Logic Array ( ULA ).
The operating environment, FLARE ( Fibre Logic Array Runtime Environment ), resides on the first four disks of the first DAE ( bus 0 enclosure 0 ), which is also supplied by the integrated UPS . In the event of power failure, this space is also used to store the contents of the write cache so that all writes are completed on restoration of power.