Originally Posted by Fisher
am i right in thinking that the very first room sized computer built used valves and these valves could calculate bu opening the valves to give out different answers. e.g a closed valve would be no and open would be yes or binary 0,1. so am i right in thinking that the first transistors in cpus do they same thing but much more smaller and quicker using voltages?
Originally Posted by BrynF_UK
well they were switches not 'valves' but yes its the same principle, i.e. a transistor is a switch that gives a 1 or 0 value like the on/off of a switch
they weren't switches.
the first computer was colossus
it used valves.
it was built in Bletchly park, (just down the road from where I live).
even closer to the member who lives in Milton Keynes.
there is a restoration project to rebuild it.
and it's on display at Bletchley park now.