Great memories with this computer. And it was so far ahead of all competitors : even the predecessor of the Acorn BBC B (the Electron) already had 2Mhz and 32KB RAM and was networkable using a thing called Econet.
The BBC B+ could be expanded up to 128KByte and had a second processor (we're talking 1986 !!!!), teletext-reader, lightpen that allowed you to draw by using a pen on your screen (think tablet !) and so on.
And then Archimedes with its 32-bit RISC CPU came in 1987 (!), doing 4 MIPS and offering a Windowed operating system that booted from EEPROM instantly (switch it on and it's there).
Any mobile device with an ARM chip (think Android, tablets, Blackberry, etc.) is based on the architecture that was spawned in the 80s by Acorn (ARM = Acorn Risc Machine).
I'm glad and privileged to have worked with those great devices !