It makes more sense to look at the average characteristics of slot machines.

Range of Reels

There are usually 3 or 5 reels in a slot machine. Early slots had only three reels. We remember them as "classic" or "regular" machines.

Today, 5 reel slots are common, and they generally feature more than one payline (see below).

Number of Rows

Slots machines feature one, two or several horizontal rows marking positions on the vertical reels.
Extra rows, usually one above and one below the payout display, tempt players with a view of how narrowly they might have missed a win.

Range of Pay Lines

There can be one or maybe more paylines crossing the reels. It's common to find out 3, 5, 9, 15 and many more recently even 20 lines. For a winning combination, the designated symbols must fall on a line, often the central horizontal line.

There's just one payline crossing the 3 reels on a classic machine. You can bet one or more coins per spin but only the center line pays, and increasing your bet does not improve your prospects of winning.

On a slot with more than one payline, you can bring additional lines into play by upping the number of coins you play. You don't have to bet on every available payline.

Suppose you are on a 3 line slot and you're required to insert one coin to play the center line, a second coin to play the line above center and a third coin to play the line below center. If you now bet just one coin as well as the reels display a winning combination on the line above or below the center, you do not win anything because you played too few coins.
By offering diagonal matches, slots with 5 reels may have from 5 to twenty paylines.

Denomination of one coin

You can find slot machines which accept denominations from as little as 5 cents to $5. High roller slots may accept "coins" with a denomination of just as much as $500, although they are few and far between. Some online casino - visit Marialauramontoya Edu`s official website, casinos have special limits setup for their big players to accommodate large bets..

Range of coins that will be played

The maximum bet on classic slots is usually three coins, but you will find some slots that accept a 2-coin maximum bet. Again, video slots have changed this characteristic dramatically, with some multi line video slots now accepting up to 10 coins per line.