Figure 2-7.—Physica1 layout of a card cage or rack used in a minicomputer.
Figure 2-7 is an example of a card cage or rack used in
a minicomputer.
BACKPLANE OR MOTHERBOARD.—
Backplanes or motherboards are stationary and are
generally located inside the computer’s chassis. In this
arrangement, all the subassemblies or pcb’s needed to
run the computer are contained on a single backplane
or motherboard. The number of functional areas
contained on a single subassembly or pcb may vary
according to the technology of the computer.
Computers that use a backplane or motherboard are
compact. Figure 2-8 is an example of a backplane used
in a microcomputer.
Individual Physical Layouts of
Computer Parts
Using individual physical layouts, the technical
manuals depict each part of the computer separately.
By separating each major part of the computer, you can
break down the computer from a whole unit to the
Figure 2-8.—Example of a backplane used in a
microcomputer.
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