ACT apricot - Numericdataprocessor

OPTIONS
autodialler facility. Telephone numbers can be "dialled" via
the Apricot keyboard, transferred to the microprocessor
control
system on the Modem Board and retained in its
internal memory. Automatic dialling of the number stored
in modem memory, is performed under the control of the
Modem microprocessor.
NUMERIC DATA PROCESSOR
The Numeric Data Processor (NDP) option is an Intel
8087 16-bit microprocessor which can be fitted onto the
System Board within the System Unit to extend the
processing capabilities of the Apricot in mathematical and
scientific applications. The NDP is a simple plug-in item
which fits into a socket already provided on the System
Board.
The NDP acts as a co-processor to the 8086 central
processing unit (CPU), and fits into the local
multiprocessing configuration on the System Board. In
effect, the NDP provides an extension of the instruction set
of the CPU, allowing the Apricot to perform arithmetic
computations and comparison operations on numeric types
of varying size
from 16 to 80 bits. In addition to arithmetic
and comparison operations, the NDP also executes
numerous transcendental functions (tangents, logarithms
etc.).