Talk:Concurrent programming language

Since when is Java a concurrent programming language?! Lost Goblin 11:21, 2005 Feb 12 (UTC)

In some sense it is and in some sense it isn't. It is, because it supports a variant of monitors, because it has a build-in notion of threads, and because there the is something called JavaSpaces. It's isn't because it's just an imperative programming language. Koffieyahoo 5 July 2005 06:40 (UTC)

Why?

Why is it the case that with so much research into concurrent programming, none of the ideas have been used practically? Is it just the inertia of existing programming models and languages, or is the some deeper reason?

Latest Changes

I have a number of questions and remarks about the latest changes by CarlHewitt:

I don't why operating systems and networking are there in the first paragraph. We want to write multi-threaded programs that's all.

I don't believe the shared objects that can change in the first paragraph is correct. There don't seem to be any shared objects in case message-passing is used (unless addresses of other machines are counted as shared objects).

Why has the sentence been removed that C is not a concurrent language, while a statement that java and C# are concurrent languages has been added (which is quite unneccessary as Java and C# are in the list of langauges)? Seems to me at least the statement on C should be added back, as it helps in understanding what is going on.

Shared-state is better than shared-memory, as what is shared cannot always be really called memory, like in the case of the Orca programming language or JavaSpaces. The first has a concept of shared abtract data types, while the second generally uses the concept of a Set in which all kinds of elements can be inserted.

Why do Java and C# use both shared state and message passing. I'm not aware of the last. Although at least Java supports some form of RPC. It is not the case that RPC can be identified with message passing.

Why are the references to Occam and Erlang removed from the message-passing part? They examplify what is going on.

Why is a reference to the Internet added to the message-passing part? The Internet is not a message passing system it's simply a set of protocols for computers to communicate. Of course, a message passing system can be build on top of the Internet. The Internet is simply not a programming language.

Koffieyahoo 8 July 2005 10:07 (UTC)