What are counters?

Some articles on counters, counter:

Transformers (board Game) - Rules
... player has three transforming robots as game counters ... At the start of the game, all counters are placed in the start square, in spaceship mode ... he/she throws the dice and moves one of his/her counters ...
Counter Machine - Two-counter Machines Are Turing Equivalent (with A Caveat)
... Then, two stacks can be simulated by four counters ... Finally, four counters can be simulated by two counters ...
Coin Sorter
... Counters may be purely mechanical or use electronic components ... Currency counters are commonly used in vending machines to determine what amount of money has been deposited by customers ... In some modern automated teller machines, currency counters allow for cash deposits without envelopes, since they can identify which bills have been inserted instead of just how many ...
List Of Magic: The Gathering Keywords - Keywords From Expert-Level Expansions (mechanics) - Suspend
... suspend, he or she may instead pay its suspend cost to exile it with X time counters on it ... The player removes a time counter every time his or her upkeep step begins ... Note that other spells or effects can add or remove time counters from suspended cards.) When the last counter is removed, the spell is cast without paying its mana cost and, if it's ...
Coin Sorter - Banknote Counters
... Basic banknote counters provide a total count of the notes in the supply hopper ... More advanced counters can identify different bill denominations to provide a total currency value of mixed banknotes, including those that are upside down ... Some banknote counters can also detect counterfeit bills either magnetically and/or using blacklight ...