Many of Wegner's papers are online in various formats at
his homepage (click on his name).
Wegner is a proponent of "interactive computing".
There is also something called "reactive systems",
which may be the same thing, but neither body of
literature seems to cite the other.
Their relationships may be worth exploring.
Abstract: Incorporating matter and energy
requirements into physically implemented machines sheds new light on
feasible computability. Under certain circumstances, conventional
mathematical models may not be asymptotically realizable due to the
limited availability of resources required to store data and execute
Abstract: Turing's model of autonomous computation
is based on the idealized psychological characteristics of a human
calculatorits ability to change its "state of mind" in a stepwise
fashion based on the recognition of symbolic configurations. This leads
to a mathematical model of effective computability, with its well known
capabilities and limitations. We extend this analysis to the idealized
physiological characteristics of a machine computerits ability to
manipulate matter using energy. This leads to a new notion of
feasibility based on physical resource bounds, in which mass and energy
constraints further restrict the usual notions of space and time
On quantum computers:
"The Limits of Quantum Computers",
"Quantum computers would be exceptionally fast
at a few specific tasks, but it appears that for most problems they
would outclass today's computers only modestly. This
realization may lead to a new fundamental physical principle."
Monroe, Christopher R.;
Wineland, David J.
"Quantum Computing with Ions",
Dresner, Eli (2008),
"Turing-, Human- and Physical Computability:
An Unasked Question",
Minds and Machines
18(3) (Fall): 349-355.
This is the first paper I've read on the subject that
clarified what the issue is, namely, is there a difference
between Turing's mathematical model of human
computability and a possibly more extensive notion of
Button, Tim (2009),
"SAD Computers and Two Versions of the Church-Turing Thesis",
British Journal for the Philosophy of Science