Off-Site Computer Use
Sometimes information needs to be processed off-site. This is often the case when enormous computing power is required or when it is not practical or prudent to wear a concealable device, such as in Nevada where it is a felony. Off-site can mean; a handbag two tables away, a briefcase in Guest Services, a hotel room, or even an office on the other side of the world.

The technology that has made this possible is the cellular telephone. All phones, digital and analogue are capable of sending sixteen DTMF (touch-tone) signals. These signals will get through under almost any conditions including heavy static and noisy telephone lines.

A different touch-tone is transmitted for each value. At the receiving end the telephone handset is simply placed near the computer, which decodes the signals back into their original values. Because telephones are duplex, it is a simple matter to relay instructions back to the player.

In situations where the signal does not have to be sent too far, a miniature digital (Bluetooth or Wi-Fi) RF link (radio transmitter) will do the job perfectly and without the expense of call charges.

Output Methods
In the old days, hit/stand information would be transmitted to the player by means of a thumper strapped to the leg or fitted in a pair of cowboy boots.

Second generation devices used a voice synthesizer that was able to relay much more information. They had the advantage of an unlimited vocabulary but were quite difficult to understand.

These days, particularly when playing order-dependent games like Baccarat, accurate feedback of input along with detailed playing strategies and instruction is crucial.

Current devices utilize pre-recorded sound files which are much easier to understand. The most common method of receiving this information is via a wireless earpiece, fitted deep inside the ear canal. These devices are totally covert and very difficult to detect without specialized equipment.

Input Methods
There are many ways to get information into a computer. One method is by using a four-key binary keypad. Each key on a binary keypad represents the numbers 1, 2, 4 and 8. By pressing different key combinations all the cards in a deck can be inputted. Keys can also be assigned different options like dealer ID, pick-up option, search mode and prediction.

It is not uncommon for an operator to wear several keypads on different parts of the body to avoid having their hands in the same place all the time.

For simple inputting, a three-key decimal keypad is often used. These are good for card counting with a simple high/low/neutral input, shuffle tracking, insurance counting and clump following.

A very clever method of inputting is the single toe operated key. When the key is held down a voice chip scrolls through card values and suits. The key is released when the appropriate value is reached. This method is totally covert and was developed specifically for the game of Baccarat.

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