Virtual memory
Virtual memory gives each process the illusion of a large private address space, which the OS maps onto physical memory and disk.
At a glance
Key signals
0% cross fields · reaches 1 more
- Operating Systems
- Computer Science
- Computer Architecture
- Explanation
- Examples
- Misconception
- Sourced relations
- Attribution
Dependencies
What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.
Foundations · builds on
Virtual memorydepends onVon Neumann ArchitectureEstablished
Open Von Neumann Architecture →
Virtual Memory depends on Von Neumann Architecture.
System context
Virtual memoryis part ofMemory hierarchyEstablished
Virtual Memory is a part of Memory hierarchy.
Virtual memoryis part ofOperating systemEstablished
Virtual memory is a service of the operating system.
Mechanism: The OS maps each process's virtual addresses onto real memory and disk, isolating processes from one another.
Structural role & consequence
Interpreted from the current atlas graph — what the connections mean, not just how many there are.
Currently dark in the atlas: no key date stored · 4 of 4 of its relations lack claim-level evidence.
atlas representation · Describes the current Thinking OS representation, not the state of the world.
Builds on 1 foundation (requires / depends-on / derived-from / emerges-from).
structural · Structural graph analysis — not a claim of importance, causation or history.
Structural neighbourhood: 4 → 14 → 28 concepts reachable within 3 hops.
structural · Structural reach — being reachable is not the same as being understood.
All 4 of its relationships stay within its own discipline — a field-specific concept in the current atlas.
structural · Structural graph analysis — not a claim of importance, causation or history.
cross-field
4 within-field, 0 cross-field
Strengths & constraints
Constraints
- Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
- No dated history stored — the atlas records no key date for this concept. atlas representation
Conditions
- Its dependency reading rests on 1 foundation relation. structural
- Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural
Dependency radial
What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.
Seen through each discipline
How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.
Through this lens it connects to Process.
Through this lens it connects to Memory hierarchy, Process and Operating system.
Through this lens it connects to Memory hierarchy and Von Neumann Architecture.
Related ideas to explore
Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.
- Connects 4 other ideas across 3 disciplines.
- Most of its connections are of the “Kind & structure” kind.
Derived from the graph’s real structure — observations, not a score.
Sources
- Chapter 13 Virtual Memory Technologies And Virtual Addressing (2017) verified
- Virtual Memory Technologies And Virtual Addressing (2024) verified
- Virtual Memory (2004) verified
- Virtual Memory verified
- Comments on workstation operating systems and virtual memory verified
- VIRTUAL MEMORY (1974) verified