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Submitted by aaabbbccc on August 19, 2007
Category: Technology
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An economical electronic
point-of-sale updating system
by DAVID G. HAMMEL
Raytheon Company
Bedford, Massachusetts
INTRODUCTION
A major trend in the business world is toward more
complete record keeping of business performance. The
demands of government (federal, state and municipal)
are ever increasing for purposes of tax evaluations. In
addition, business executives are interested in obtaining
more complete information, within the shortest delay
period, pertaining to their company's financial operations.
For the past half century one of the basic tools used
in businesses to record transaction data is the cash
register. Throughout these years, the cash register has
kept pace with the times, offering improved features to
meet the business demands. However, this mechanical
device has serious inherent limitations in its totalling
and counting capabilities and its means of communicating
with data processing systems.
To meet the increasing demands of business, pointof-
sale systems are being designed electronically. The
organization and performance of one of these systems,
termed the Transaction Data System, is the subject of
this paper. A summary of the system's main features is
as follows:
1. The system can service a large number of clerk-operated
stations and special monitor stations while
maintaining an acceptable message cyclic rate.
2. The system can perform all of the functions associated
with cash registers, but in much greater detail.
3. The system can store and update large amounts of
business information for inventory purposes.
4. The system can provide management with continuous
access to any and all of the accumulated business
data without interrupting other system functions.
5. The system can...
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