virtual_memory

Table of Contents

Virtual memory
Historical

Virtual memory

Return to Memory

Virtual memory: “An abstraction of main memory that supports multitasking and oversubscription. It is, practically, an infinite resource.” (SysPrfBGrg 2021)

Memory - as in Data Storage: Computer memory: Volatile memory - Volatile, Random-access memory - RAM

Main memory
Virtual memory
Hardware cache
- CPU cache
- Scratchpad memory
DRAM
- eDRAM
- SDRAM
- SGRAM
- LPDDR
- QDRSRAM
- EDO DRAM
- XDR DRAM
- RDRAM
- SDRAM
- DDR
- GDDR
- HBM
SRAM
- 1T-SRAM
ReRAM
QRAM
Content-addressable memory (CAM)
VRAM
Dual-ported RAM
- Video RAM (dual-ported DRAM)

Historical

Historical (archaic - old

Williams–Kilburn tube (1946–1947)
Delay-line memory (1947)
Mellon optical memory (1951)
Selectron tube (1952)
Dekatron
T-RAM (2009)
Z-RAM (2002–2010)

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