| Shapiro, Jonathan S. EROS: A Capability System. PhD thesis, University of Pennsylvania, 1999. |
....there is a table associating small numbers (similar in spirit to Unix file descriptors) with the capabilities held by that process. These small numbers serve the same function as variable names do in the lambda calculus [29] In a pure capability operating system, such as KeyKOS [19] or EROS [38], a process s only source of authority is the capabilities that it holds. A capability is normally thought of as a pairing of a designated process with a set of services that the process provides. For example, in KeyKOS a capability carries a numeric tag which an invoked process receives along ....
Jonathan S. Shapiro, "EROS: A Capability System", Ph.D. thesis, University of Pennsylvania, 1999. http://www.cis.upenn.edu/~shap/EROS/thesis.ps
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Shapiro, Jonathan S. EROS: A Capability System. PhD thesis, University of Pennsylvania, 1999.
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