Template talk:Memory types
This is the talk page for discussing improvements to the Memory types template. |
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Memristor not a memory
I removed the memristor from memory types, because such a basic element would not exclusively be a memory technology.61.61.254.9 (talk) 05:56, 21 May 2008 (UTC)
- Is it wise to remove it without a trace? The memristor page still includes this template. It's true that memristors themselves are just one of the four passive circuitry elements, but its very clear that the bulk of our interest in them is for applications as computer memory. Are we really going to wait for a brand name to include this in a list? This decision is trading ease of navigation for technical correctness. 2620:0:1019:10:28C9:975F:5DA6:4354 (talk) 17:51, 8 July 2016 (UTC)
virtual memory
no mention of virtual memory here or in computer memory! --Espoo (talk) 09:09, 6 September 2009 (UTC)
- That's because "virtual memory" isn't an actual type of computer memory, it's a method of accessing it. A quick look at that article should clear up just what it is, but in case it seems a bit opaque... It basically 're-directs' a program's memory access, to make the program believe it's using a single, monolithic block of memory, while secretly, it is really being provided with memory fragmented across numerous RAM modules, and even potentially on hard/solid state drives. The program won't know the difference; hence it runs fine. This does have the downside of potentially slowing RAM access speeds, but has the upsides of eliminating any other downsides of fragmentation, making sure all memory can be used, and making sure a computer can multi-task without each program bumping into other program's memory. Nottheking (talk) 03:03, 20 March 2010 (UTC)
Flash Memory
As the article for
- Yes, it is. The Flash RAM, but this word is an alias in Wikipedia. Refer to the following site.
Williams-Kilburn Tube
I have altered the name of the Williams tube to the Williams-Kilburn tube for the reasoning given at: Why Williams-Kilburn Tube is a Better Name for the Williams Tube --TedColes (talk) 17:15, 15 March 2012 (UTC)
Solid-state storage
Solid-state storage is not a memory type, because it is just an application of flash memory as of 2018. It would be replaced with other memory types in the future, such as ReRAM.
Cafeduke (talk) 03:46, 20 March 2018 (UTC)
Optical disc drive
Magnetical
- Magnetic tape
- Floppy disk
- Hard disk (including; ancient disk pack)
Optical
Optical discs |
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But...
Optical
might be enough, because there are too many specifications. I found a
Cafeduke (talk) 04:38, 20 March 2018 (UTC)
- While I agree with the categorization here it is more fitting to group all of optical disks together as one as they are just different implementations of the same technology. Also I don't think "5D" optical storage belongs there, it is but one of myriads of optical storage techs in the lab, that one just got some marketing attention. It is not a computer memory tech yet. IdentityCrisis (talk) 17:48, 17 August 2020 (UTC)
Mechanical memories
As for mechanical memories, my images are:
Mechanical (Not need to be listed up) → See phtos.
Historical computers, such as Digital Equipment Corporation's PDP-11, had mechanical switches for booting. Nowadays, these are replaced with EEPROM-based BIOS,
Cafeduke (talk) 04:38, 20 March 2018 (UTC)
- I found that the term "mechanical" refers to "mechanically addressable" in the article Non-volatile memory. Cafeduke (talk) 08:26, 21 March 2018 (UTC)
SONOS
- Threshold-alterable Si-gate MOS devices | IEEE
- A low-voltage alterable EEPROM with metal—oxide-nitride—oxide—semiconductor (MONOS) structures | IEEE
- "Renesas Electronics Develops 90 nm One-Transistor MONOS Flash Memory Technology" | Business Wire
- Renesas bets on SG-MONOS for MCUs with over 100MB of embedded flash | eeNews Embedded
- Gutmann (2001) papaer: "Data Remanence in Semiconductor Devices" | USENIX
Cafeduke (talk) 00:50, 20 March 2018 (UTC) Modified some again: Cafeduke (talk) 04:28, 20 March 2018 (UTC)
3D Xpoint
- Rohnert Park (2015) "3D Monolithic Resitive RAM" | IEEE S3S Conference
- "Partnership Puts ReRAM in SSDs" | EE Times
- "Leader: Accelerating ReRAM-based main memory by leveraging access latency discrepancy in crossbar arrays" | IEEE
Cafeduke (talk) 01:10, 20 March 2018 (UTC)
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DRAM and SRAM
Unfortunately, Wikipedia dos not have template for each SRAM types, such as asynchronous SRAM, pipeline-burst SRAM,
nvSRAM
Cypress Semiconductor's nvSRAM is not a memory types but a product name, which integrates 6-transistor SRAM, SONOS-based non-volatile memory, real-time clock, etc. Refer to the following product page. SONOS itself is a very old technology for cross sectional structure of MOSFET. SONOS is realized in 1977 by Fairchild Camera and Instrument.
Cafeduke (talk) 15:05, 20 March 2018 (UTC)
Early stage NVRAM
What/who defines early stage here? As of 2020, NVRAMs that are seeing market presence are: PCM (because of
- Change made, also upon inspection of the history ReRAM was up there merely because at that time Xpoint was thought to be a ReRAM... so everything is good now. IdentityCrisis (talk) 00:58, 25 September 2020 (UTC)
Sort by year
I propose to sort the list of storage types by a year of invention. Each under own separate heading. --AXONOV (talk) ⚑ 18:42, 16 May 2021 (UTC)