What does POS mean? In retail and food service, POS stands for point of sale: the moment and the place where a customer pays you. A POS system is the software and hardware you use to ring up that sale, take the payment and keep a record of it. If you run a market stall, a food truck, a coffee cart or a small shop, your POS is where every sale starts.
This guide covers what the term means, what a point of sale system actually does, the parts of a modern setup, and a simple checklist for choosing one for a small business.
POS meaning: point of sale
The “point of sale” is wherever the sale happens. In a boutique it’s the counter. At a farmers market it’s the folding table at the front of your booth. On a food truck it’s the service window. For an online store it’s the checkout page.
When people in business say “POS,” they almost always mean the system at that spot: the register, app or terminal that totals the order, takes the payment and prints or sends a receipt. You’ll also hear “POS terminal,” “POS software” or just “the register.”
Other meanings of POS
Outside retail, POS has a few other meanings. In texting and online slang it’s a rude way to call something junk. In some contexts it means “positive” (as in a test result), and in grammar it can stand for “part of speech.” If you’re reading about shops, restaurants or payments, though, POS means point of sale.
What is a point of sale system?
A point of sale system is the combination of software and devices that handles a sale from start to finish. The old version was a cash register: a drawer, a keypad and a paper tape. A modern POS does the same core job but keeps far better records.
At a minimum, a POS system lets you:
- Ring up items. Tap a product on screen, scan a barcode or type in a custom amount. The system adds up the order, including sales tax.
- Take payment. Cash, card, gift card, or a mix. The POS records how each sale was paid.
- Apply discounts and tips. A market-day special, a regular customer discount, or a tip on a coffee order.
- Give a receipt. Printed, emailed or both.
- Keep a record of every sale. What sold, when, for how much, and how it was paid.
Most POS systems built for small shops also help you:
- Track inventory. Stock counts drop as you sell, so you know what’s running low before you’re out. (New to the term? Read what inventory is.)
- Manage cash. Count a starting float at the beginning of a shift and compare expected cash to counted cash at the end.
- Run reports. Daily totals, best sellers, busy hours, profit per product and sales tax collected.
- Control staff access. Let helpers ring up sales without letting them change prices or delete records.
The parts of a modern POS system
A POS “system” can be one phone or a full counter setup. Here are the pieces you might use, and which ones you actually need.
POS software
The software is the heart of it. It holds your product list, prices, costs and stock counts, rings up sales and stores the history. Everything else plugs into it. Some POS software is installed on a specific machine; a lot of it now runs in a web browser or an app and stores data online.
A device to run it on
That can be a phone, a tablet, a laptop or a dedicated terminal. For a market stall or a food truck, a phone or tablet is often all you need. A shop with a fixed counter might use a tablet on a stand or a computer.
Card reader
To take card payments you need a card reader and a payment processor, the company that moves the money from the customer’s card to your bank. Some POS systems include their own processing; others work alongside the reader and processor you already have and simply record that the sale was paid by card.
Receipt printer
Optional for many small sellers. Plenty of customers are happy with an emailed receipt or none at all. If you do print, small thermal printers (58 mm or 80 mm paper) are the common choice.
Barcode scanner
Scanning is faster and more accurate than searching a product list, especially once you have more than a few dozen items. You can use a dedicated handheld scanner, or a POS that scans with the phone or tablet camera. Each product needs a code to scan, which is usually built from its SKU. See how to get barcodes for your products if you don’t have them yet.
Cash drawer
If you take a lot of cash, a drawer keeps it organized. A cash box works fine at a market. Either way, count it at the start and end of each shift; a cash drawer count sheet makes that quick.
Cloud and phone-based POS vs traditional POS
There are two broad styles of point of sale system.
| Traditional POS | Cloud or phone-based POS | |
|---|---|---|
| Where it runs | Software installed on a dedicated terminal or computer | An app or web browser on a phone, tablet or computer |
| Where data lives | On the machine or a local server | Online, so you can check it from anywhere |
| Upfront cost | Usually higher, since hardware is part of the package | Usually lower; you can start with a device you already own |
| Portability | Stays at the counter | Goes with you to markets, fairs and events |
| Internet | Often works without a connection | Many need a data connection; some have an offline mode |
| Updates | May need manual installs | Delivered automatically |
For sellers who move around, or who just don’t want to buy a terminal, a cloud or phone-based POS is usually the easier fit. The main thing to check is internet: if your market or event spot has weak signal, find out how the system behaves without a connection, or plan on a phone hotspot.
How to choose a POS system for a small business
There’s no single best POS. The right one is the one that fits how you actually sell. Work through this checklist before you sign up for anything.
- Where do you sell? A fixed shop, a truck, markets, pop-ups, or a mix? If you move around, you need something that runs on a phone or tablet and doesn’t depend on a counter setup.
- What devices do you already have? Using a phone or tablet you own keeps startup costs down. Check which devices and operating systems the POS supports.
- How will you take cards? Find out whether the POS requires its own processor or works with the card reader you already use. Compare processing fees separately from the software price.
- How many products do you have? A coffee cart with 15 drinks has different needs from a gift shop with 800 items. Larger catalogs benefit from CSV import, barcode scanning and size or color variants.
- Do you need inventory tracking? If you sell physical goods, you want stock counts that update with each sale, low-stock alerts and a way to record damaged or received stock.
- What reports matter to you? At minimum you want a daily summary (often called a Z report), sales by product and a sales tax total. Profit per product is worth having if you track costs.
- Will anyone else use it? If you have helpers or staff, look for separate logins and permissions.
- What does it really cost? Add up the subscription, any hardware, card processing fees and add-ons. Check whether billing is monthly, weekly or annual, and whether you can cancel in the off-season.
- What happens without internet? Ask directly, especially if you sell outdoors.
- Can you get your data out? Being able to export products and reports as CSV means you’re never stuck.
Most POS providers offer a trial. Use it on a real selling day, not just at your kitchen table. Ring up a busy hour, run a refund, and close out the day. You’ll learn more in one market morning than in a week of reading feature lists.
Common questions about POS
Is a POS the same as a cash register?
A cash register is a basic kind of POS. A modern POS system does the same job and adds inventory, reports, staff accounts and records you can look up later.
Is a POS the same as a card reader?
No. The card reader takes the card payment. The POS is the system that knows what was sold, totals it, and records the payment. Some products bundle both; others keep them separate.
Do I need a POS system for a market stall?
You can get by with a cash box and a notebook, but you’ll lose track of what sold, what you have left and whether the cash adds up. Even a simple phone-based POS gives you those numbers without extra work.
A point of sale system for small sellers
SleepingFire is a point of sale system that runs in the browser on your phone, tablet or computer, so there’s no terminal to buy. It rings up cash, card, gift card or split payments (card payments go through your own reader and processor), tracks stock as you sell, scans barcodes with your device camera and gives you daily Z-reports, best sellers and profit per product. It needs a data connection to work. See how the sales reports and inventory tracking fit together.