(2) A program segment called into memory when required. When a program is larger than the memory capacity of the machine, parts of the program not in constant use can be set up as overlays. Each overlay called in overwrites the existing overlay in memory. Virtual memory provides for automatic overlays. See virtual memory.
![]() | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
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