Business Types
Built around the room you actually run.
A bar keeps a tab open all night. A truck gives up no counter space to a till. A quick-service line lives or dies on the queue. A full-service floor fires courses in order. A retail shop counts stock by the barcode, not by hand. Same system underneath — find the one that sounds like yours.
All business types

Full Service
For sit-down restaurants running table service and multi-course meals, not a counter.
Courses fire in the right order, a docket tells the kitchen how the table wants it served, and a waiter's handheld reaches the pass without a walk to a fixed till.

Quick Service
For quick-service and counter-service spots where throughput matters more than table turns.
A fast checkout, a printed queue number, and combos that bundle themselves — built for a counter where the line behind the customer is the whole problem.
Retail
For retailers selling many SKUs — apparel, grocery, convenience — not a fixed menu.
A barcode scan rings up a product in one motion, a CSV re-prices a whole catalogue at once, and a stock take reconciles what's actually on the shelf against what the system thinks is there.
Bars
For bars and pubs running tabs, rounds, and time-based drink pricing.
A tab stays open across a night of rounds, a discount ceiling keeps a bartender's generosity in check, and happy-hour pricing switches itself back at the clock, not by hand.

Food Truck
For a single-operator food truck or pop-up stall running on minimal hardware.
The whole till fits on one tablet with a printer and a cash drawer, the menu can be set up before a signal's even found, and a customer's name calls them up when the order's ready.