The Intel 80188 is a version of the Intel 80186 microprocessor with an 8 bit external data bus, instead of 16 bit. This makes it less expensive to connect to peripherals.
External links
Intel 80186/80188 images and descriptions at cpu-collection.de (http://www.cpu-collection.de/?tn=1&l0=cl&l1=80186/188)
References
This article was originally based on material from the Free On_line Dictionary of Computing, which is licensed under the GFDL.
The 80188 integrates many system components into one chip, implements 7 new instructions and adds new operand types to three existing 8088 instructions.
With the exception of integrated components, the 80188microprocessor is not very different from the 8088, and, because of this, it may be considered as an embedded version of the 8088.
The Intel 80188 didn't even have its own version of co-processor and worked with Intel 8087.
The Intel 80188 is a version of the Intel 80186microprocessor with an 8 bit external data bus, instead of 16 bit.
As the 8086, the 80188 featured four 16-bit general registers, which could also be accessed as eight 8-bit registers.
This addressing system provided a total of 1 Mbyte of addressable memory, a value that, at the time, was considered to be very far away from the total memory a computer would ever need.
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