There's a fair bit of plain old guff in this one.
Round about 3:35, starts talking about the background to the display segments being the wrong colour and LCD's being invented. Total rubbish, They look like BCD (or similar) coded segments (the whole world used them a few decades back, prior to LCD's becoming popular) They look light in colour because the are simply missing semi-opaque covers that they shine through when assembled.
As for the memory ferrite memory cores I'm old enough to have seen them working.
And as for him saying the upside-down "U" not being a real symbol, just look up set theory. In the strictest sense it's not an operator, but is a mathematical process.
Round about 3:35, starts talking about the background to the display segments being the wrong colour and LCD's being invented. Total rubbish, They look like BCD (or similar) coded segments (the whole world used them a few decades back, prior to LCD's becoming popular) They look light in colour because the are simply missing semi-opaque covers that they shine through when assembled.
As for the memory ferrite memory cores I'm old enough to have seen them working.
And as for him saying the upside-down "U" not being a real symbol, just look up set theory. In the strictest sense it's not an operator, but is a mathematical process.