Point of Sale and Pos Systems Explained

The term point-of-sale is used to describe a variety ofthese computers were in place, the rapid evolution of
things. This can include the checkout counter in a storetoday’s sophisticated retail management systems
or a place where transactions occur. More frequently,began.
the phrase refers to a computerized cash register.The next step in the point-of-sale evolution was the
The commonly used abbreviation for point-of-sale isaddition of automatic pricing. Rather than entering a
POS. Each letter in the abbreviation is pronounceddepartment code and then the price of an item,
individually (e.g. P-O-S) versus pronouncing thecashiers could now enter the SKU (Stocking Keeping
abbreviation itself (e.g. paws).Unit) of the item and the point-of-sale would retrieve
When computers were first invented, large retailersthe price. Automatic Pricing saved retailers money by
were the first to implement point-of-sale systems toremoving the need to place a physical price tag on
help automate many of the tasks involved witheach item and in reducing pricing errors made by
operating a retail store. These computers were verycashiers.
large and expensive. This limited the adoption ofSince the point-of-sale system was now keeping an
point-of-sale systems to large retailers such asindividual record for each inventory item, retailers
grocery chains. The introduction of low cost personalwanted to maintain their stocking levels in the
computers during the 1980s allowed retail stores of allcomputer. This ushered in the era of real-time
sizes to improve efficiencies with the help of posperpetual inventory. By placing a bar code that
systems.represented the SKU on each inventory item, the On
A common point-of-sale system includes a computer,Hand quantity of inventory was automatically reduced
cash drawer, receipt printer, pole display, bar codeeach time it was scanned at the point-of-sale. This
scanner, magnetic swipe reader, modem andfeature allowed retailers to query their point-of-sale
point-of-sale software. Each piece provides thesystems for up-to-date balances at a moment’s
following functionality:notice.
- Personal Computer – Operates the POSOnce inventory stocking levels and retail pricing were
software and provides hardware interfaces forbeing managed by the point-of-sale system, the next
devices such as printers, credit card readers and sological step was to add purchasing and receiving
on.modules to complete the inventory management loop.
- Cash Drawer – A lock box that stores cash andThis closed loop inventory automation allowed a
is triggered to open by the pos software.retailer to:
- Receipt Printer – Prints a paper copy of the sales
transaction for the customer.1. Issue purchase orders to buy goods
- Pole Display – LED display that faces the2. Create inventory records and SKUs via the
customer and shows each item and price scan.purchase order
- Bar Code Scanner – A laser type of device (gun3. Receive goods against the purchase order
style, counter style) that when triggered over a bar4. On hand stock levels are increased based upon
code, converts bar code lines into numbers. Thisreceiving
number or SKU (Stock Keeping Unit) is then5. Print price tag with bar codes
transmitted back to the pos computer for automatic6. Sell the goods via the point-of-sale cash register
price lookup.7. On hand stock levels are depleted based upon SKU
- Magnetic Swipe Reader – Reads the magneticscans
strip on the back of a credit or debit card. The8. Perpetual Inventory is automatically maintained
information stored on the magnetic strip includes the9. Generate reports on sales, inventory levels,
credit card number, expiration date, customer name,purchases, and receiving
and address. The information is transmitted to a credit10. Manage inventory buying and markdown behavior
card processing network through the point-of-salebased upon sales trends 
system for payment of merchandise.As you can see, the simple point-of-sale system grew
- Modem – Allows the point-of-sale computer tointo a powerful information system for managers and
communicate with bank credit card processing centersstore owners. Today, point-of-sale systems continue
and to other locations of the store chain.to innovate and some even include:
- Point of Sale Software – Software that runs on- eCommerce integration
the computer, controls the various devices, and- Integrated accounting
performs traditional cash register functions such as- CRM – Customer Relationship Module
ringing a sale.- Electronic payment processing
Today’s point-of-sale software contains many- Gift card management
more features in addition to the computerized cash- Service order management
register. As a result, the term POS System is slowly- Marketing
being replaced with the phrase Retail Management- Revolving accounts receivable
System. POS is now commonly referred to as only- Customer traffic counters
the cash register feature within a retail management- Integrated video surveillance
system.- Open To Buy planning
When point-of-sale systems were first introduced, their- Linear inventory modeling
sole function was to ring sales by department codes.- Special order management
This simple automation allowed retailers to view their- EDI (electronic ordering)
daily sales summarized by department. The- And much more…
automation saved a retailer many hours in determiningAs retail management systems continue to add more
which departments contained the best selling itemsrobust features, the term point-of-sale will continue to
and how many sales dollars were generated. Oncerefer to just a module within the overall system.