To expand a bit, that parent site is about programmable analog computers while the original article is about programmable analog circuits.
Analog computers are indeed built with analog circuits but analog computers are a niche tool for solving differential equations[0] while analog circuits are used literally everywhere.
The "programmability" occurs on two different levels; in the digital realm you program an FPGA by changing the logic of its gates and their interconnections. You program a computer by using Java to build a terrible issue tracker.[1]
The former corresponds to the original article; the latter is about the parent. There is much overlap between the two ideas but that's the gist.
[0] And other tasks like producing music. Analog synthesizers are really just special-purpose analog computers.
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That site is about an entirely different thing from what the article is discussing. Pretty much the only commonality is analog in the name.
To expand a bit, that parent site is about programmable analog computers while the original article is about programmable analog circuits.
Analog computers are indeed built with analog circuits but analog computers are a niche tool for solving differential equations[0] while analog circuits are used literally everywhere.
The "programmability" occurs on two different levels; in the digital realm you program an FPGA by changing the logic of its gates and their interconnections. You program a computer by using Java to build a terrible issue tracker.[1]
The former corresponds to the original article; the latter is about the parent. There is much overlap between the two ideas but that's the gist.
[0] And other tasks like producing music. Analog synthesizers are really just special-purpose analog computers.
[1] sorry couldn't resist