Field of Vision
Copyright ©The Author(s) 2021.
World J Meta-Anal. Dec 28, 2021; 9(6): 474-487
Published online Dec 28, 2021. doi: 10.13105/wjma.v9.i6.474
Figure 4
Figure 4 Possible coupling of computers according to ISO/OSI. Each column in this figure represents such an ISO/OSI model with hierarchically arranged layers. The lowest layer (rectangle shaded in grey) is always the physically described layer, which defines the (physical) connection to the other computers. The upper layers of the columns in this figure are the units described in terms of information technology (rectangles shaded in white: the upper layer in the Mealy model is subdivided into several layers as required, with functions allocated within according to the specific tasks). ISO: International Organization for Standardization; OSI model: Open Systems Interconnection model.