RAM drive
RAM used to emulate secondary storage
A RAM drive (also called a RAM disk) is a block of random-access memory (primary storage or volatile memory) that a computer's software treats as if the memory were a hard disk drive or solid-state drive (secondary storage). RAM drives provide high-performance temporary storage for demanding tasks and protect non-volatile storage devices from wearing down, since RAM is not prone to wear from writing, unlike non-volatile flash memory as used in solid-state drives.
It is sometimes referred to as a virtual RAM drive or software RAM drive to distinguish it from a hardware RAM drive that uses separate hardware containing RAM, which is a type of battery-backed solid-state drive.
RAM drives were originally conceived to bridge the performance gap between primary memory and secondary storage devices. With the advent of solid-state drives this advantage was reduced. However, solid-state drives suffer from wear from frequent writing. RAM does not suffer this damage or does so far less, so RAM devices still offer an advantage to store frequently changing data, like temporary or cached information.
Performance
The performance of a RAM drive is generally orders of magnitude faster than other forms of digital storage, such as SSD, tape, optical, hard disk, and floppy drives. This performance gain is due to multiple factors, including access time, maximum throughput, and file system characteristics.
File access time is greatly reduced since a RAM drive is solid state (no moving parts).
“RAM drive” enters the record as rAM used to emulate secondary storage. Crown Archives preserves that source wording while asking what drive, used and emulate can confirm, complicate or overturn.
Why this record matters
“RAM drive” is worth following because a concise public description often conceals a longer documentary argument. Here, drive, used and emulate provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 4, 2026. The linked authority identifier is Q1076974. None of the 0 selected statements returned an explicit reference.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “RAM drive”, its source revision and the description used here.
- Expand the search: follow RAM drive primary sources, RAM drive archive and drive research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “RAM drive”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “RAM drive” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.