Talk:von Neumann architecture

Computing: CompSci C‑class Top‑importance

This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing articles

C

This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible.

Top

This article has been rated as Top-importance on the project's importance scale.

This article is supported by WikiProject Computer science (assessed as High-importance).

This article is supported by Computer hardware task force (assessed as Top-importance).

Things you can help WikiProject Computer science with:

Here are some tasks awaiting attention:

Article requests :
- Requested articles/Applied arts and sciences/Computer science, computing, and Internet
Cleanup :
- Computer science articles needing attention
- Computer science articles needing expert attention
Copyedit :
- Computing
Expand :
- Computer science
Infobox :
- Computer science articles without infoboxes
Maintain :
- Timeline of computing 2020–present
Photo :
- Find pictures for the biographies of computer scientists (see List of computer scientists)
- Computing articles needing images
Stubs :
- Computer science stubs
Unreferenced :
- WikiProject Computer science/Unreferenced BLPs
Project-related :
- Tag all relevant articles in Category:Computer science and sub-categories with {{WikiProject Computer science}}

Archives

1

This page has archives. Sections older than 365 days may be automatically archived by when more than 5 sections are present.

an original work of Von Neumann[edit]

IMHO the book or article, where Von Neumann architecture was introduced should be mentioned (with a link, if possible) —Preceding unsigned comment added by 85.140.22.47 (talk • contribs) 03:08, 18 April 2005

There it is... You could have done it yourself, it only took two quick Google searches (one on "von neumann architecture eniac" to find the title and one on the title to find a PDF of the paper itself). -- RTC 21:54, 18 Apr 2005 (UTC)

Earliest dates for stored program computers[edit]

If anyone has more information for the dates about the earlies stored program computers, please include it. --Bubba73 05:49, 4 Jun 2005 (UTC)

Open problems[edit]

Currently this "von Neumann architecture" article is tagged with "Category: Open problems".

My understanding is that the "von Neumann architecture" itself is not an open problem, since many implementations of it seem to be working fine.

Is there, perhaps, one or more unsolved problems or other open problems associated with "von Neumann architecture", perhaps something related to the "von Neumann bottleneck"? If so, it would be nice if they were explicitly spelled out in this article rather than letting readers like me wonder what the open problems are. If not, the "Category: Open problems" tag should be removed. --DavidCary (talk) 23:17, 8 September 2020 (UTC)[reply]

Done. The Von Neumann bottleneck is not an example of an open problem. --Guy Macon (talk) 23:37, 8 September 2020 (UTC)[reply]

Does the use of ROM make an architecture non Von Neumann?[edit]

It seems to me that the statement " both program instructions and data in read–write, random-access memory (RAM)" is incorrect. Does the use of ROM for instructions (or data) make an architecture not Von Neumann . DGerman (talk) 00:06, 15 August 2021 (UTC)[reply]

I'd like to make a note that this isn't even simply incorrect in the context of non-Von Neumann architectures, but it is also an incorrect description of the subject matter which the sentence in question is actually describing which is the stored-program computer. That jojo (talk) 15:05, 21 February 2023 (UTC)[reply]

The article no longer speaks of instructions or data necessarily being stored in read-write memory. Guy Harris (talk) 06:44, 17 March 2024 (UTC)[reply]

"A control unit that includes an instruction register and a program counter"[edit]

Hello,

Not sure where to ask this so I'll do it here. Please tell me if you want this comment removed.

I learned in class that the instruction register and a program counter are the same things.

Why the use of the word "and" then ? Saulepleureur (talk) 15:05, 4 March 2024 (UTC)[reply]

Because whoever taught you that in class might have been mistaken, in which case you learned something that's not correct. The instruction register Wikipedia page says that "the instruction register (IR) or current instruction register (CIR) is the part of a CPU's control unit that holds the instruction currently being executed or decoded". whereas the program counter Wikipedia page says that "The program counter (PC) ... is a processor register that indicates where a computer is in its program sequence." The two definitions given in the article are not the same - the program counter indicates where the current instruction was fetched from or where the next instruction is going to be fetched from, whereas the instruction register contains the instruction in question. (In practice, modern machines might not have something as simple as an "instruction register", but that's a different matter.) Guy Harris (talk) 06:40, 17 March 2024 (UTC)[reply]