The terms get used interchangeably, but a cash register and a point of sale system are not the same thing, and the difference affects far more than just the price tag. A traditional cash register totals a sale and opens a drawer. A point of sale system does that too, but it also tracks inventory, records sales data by item, and connects to a receipt printer, barcode scanner, and card reader as one working setup.
Retail security hardware used to mean a lock and a key, checked once at open and once at close. A newer category of connected devices adds monitoring in between those two points, without asking a business owner to install a full alarm system.
Barcode scanners get chosen based on habit more often than need, which is why so many stores end up with the wrong type for their counter. The two main formats, handheld and tabletop, solve different problems, and the right pick depends on what is actually being scanned and how the counter is laid out.
A slow checkout line costs more than a few minutes of customer patience. Every extra second per transaction adds up across a full shift, and during peak hours a sluggish terminal can turn a two person line into a five person line fast. The terminal itself, not just the software running on it, is usually the reason.
A kitchen display system, usually shortened to KDS, replaces the paper ticket rail that has run restaurant kitchens for decades. Instead of a cook grabbing and marking up a paper slip, orders appear on a screen mounted in the kitchen the moment they are placed at the counter or table,
https://higgledy-piggledy.xyz/index.php/Smart_Security_Devices_Are_Changing_How_Small_Retailers_Watch_Over_Cash_And_Stock and the cook marks each item complete on the screen instead of crossing it out by hand.
Wired versus wireless is a separate decision from handheld versus tabletop. A wired scanner is simpler, has one less battery to think about, and suits a single fixed position. A wireless scanner gives staff the freedom to scan anywhere within range, which matters for larger floor plans, inventory counts, or curbside order fulfillment where the scanner needs to leave the counter entirely.