Station 254
Acorn FileStore E01
Station 254
Acorn FileStore E01
With the drives out of the way (removing them is not recommended, incidentally, as any attempt to reassemble the FileStore will inevitably lead to hours of frustration) you can see what I'm talking about.
Underneath the drives, we have the real time clock chip, the same as in the Master series, and the central processor, the 65C102, the same as in the Master Turbo co-processor, two control ROMs, the MOS and FS and the floppy disc controller, a 2793 chip. I wonder why Acorn opted for this instead of the 1770 series controller which had given such service in Acorn machines previously. The 1772 was revived, of course, for use in the Acorn A3000.
The contents of two control ROMs are copied into RAM during the FileStore's start-up procedure and the ROMs themselves are not subsequently accessed by the unit.Towards the bottom of the picture is the battery which powers the CMOS memory to store all the settings. You can set the station number of the FileStore, the system user name and password and the number of drives and all these details are stored by the battery-backed RAM.
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