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Graphics Interchange Format  |  1996-06-12  |  62KB  |  462x404  |  4-bit (16 colors)
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OCR: Application Named RPC APPC Presentation Pipes XDR Session NetBIOS Sockets LU 6.2 Transport SPX TCP Network IPX IP PU 2.1 Data Link IEEE 802.5/8023 SDLC Physical Cabling Plant Figure 3. Major Protocols within the OSI model, As with Figures 1 and 2, a layer communicates only with the adjacent layers pictured above and below it (not with the layers pictured to the right or left).