A debit card (also known as a bank card or cheque card) is a plastic card that provides an

alternative payment method to cash when making purchases. Functionally, it can be called an

electronic check, as the funds are withdrawn directly from either the bank account, or from the

remaining balance on the card. In some cases, the cards are designed exclusively for use on

the Internet, and so there is no physical card



In many countries the use of debit cards has become so widespread that their volume of use

has overtaken or entirely replaced the check and, in some instances, cash transactions. Like

credit cards, debit cards are used widely for telephone and Internet purchases and, unlike

credit cards, the funds are transferred immediately from the bearer's bank account instead of

having the bearer pay back the money at a later date.



Debit cards may also allow for instant withdrawal of cash, acting as the ATM card for

withdrawing cash and as a check guarantee card. Merchants may also offer cashback

facilities to customers, where a customer can withdraw cash along with their purchase.

A credit card is a small plastic card issued to users as a system of payment. It allows its

holder to buy goods and services based on the holder's promise to pay for these goods and

services.The issuer of the card creates a revolving account and grants a line of credit to the

consumer (or the user) from which the user can borrow money for payment to a merchant or

as a cash advance to the user. 



A credit card is different from a charge card: a charge card requires the balance to be paid in 

full each month. In contrast, credit cards allow the consumers a continuing balance of debt,

subject to interest being charged. A credit card also differs from a cash card, which can be

used like currency by the owner of the card. Most credit cards are issued by banks or credit

unions, and are the shape and size specified by the ISO/IEC 7810 standard as ID-1.



Maestro


Maestro is a multi-national debit card service owned by MasterCard, and was founded in

1990. Maestro cards are obtained from associate banks and can be linked to the card

holder's current account, or they can be prepaid cards. The cardholder presents the card at

the point of sale (POS) and this is swiped through the terminal by the assistant or the

customer or inserted into a chip and PIN device. The payment is authorised by the card issuer

to ensure that the cardholder has sufficient funds in their account to make the purchase and

the cardholder confirms the payment by either signing the sales receipt or entering their 4 to

6-digit PIN.


Within the EU and certain other countries, Maestro is MasterCard's main debit brand and is

the equivalent of signature debit card which does not require electronic authorisation, similar to

the Visa Debit card. In most other countries, Maestro is equivalent to a Visa Electron and is

MasterCard's tertiary card. It requires electronic authorisation much like a Solo debit card, i.e.

not only must the information stored in either the chip or the magnetic stripe be read, this has

to be sent from the Merchant to the issuing bank, the issuing bank then has to respond with an

affirmative authorisation. If the information is not read, the issuer will decline the transaction,

regardless of any disposable amount on the connected account. This is different from other

debit and credit cards, where the information can be entered manually into the terminal (i.e. by

punching the 13 to 19 digits and the expiry date on the terminal) and still be approved by the

issuer or stand-in processor 



Visa


Visa Inc. is a global payments technology company headquartered in San Francisco,

California. It facilitates electronic funds transfers throughout the world, most commonly

through Visa-branded credit card and debit cards.Visa does not issue cards, extend credit or

set rates and fees for consumers; rather, Visa provides financial institutions with Visa-branded

payment products that they then use to offer credit, debit, prepaid and cash-access programs

to their customers. In 2008, according to The Nilson Report, Visa held a 38.3% market share

of the credit card marketplace and 60.7% of the debit card marketplace in the United States.In

2009, Visa’s global network (known as VisaNet) processed 62 billion transactions with a total

volume of $4.4 trillion



Visa Debit


Visa Debit is a major debit card issued by Visa in the United Kingdom, the Republic of Ireland

and other nations of the European Union. Prior to October 2004, the debit card was known as

Visa Delta. Since June 2009, the major banks in the UK have begun issuing Visa Debit.

Barclays, Bank of Scotland/Halifax, Lloyds TSB, and Santander have already issued the card.

HSBC, RBS (including NatWest and Ulster Bank) are currently in the process of migrating to

the card from the Maestro debit card.

The scheme is also used by many smaller banks and building societies (some of whom had

also previously been Switch issuers) including the Co-operative Bank, First Trust Bank,

Alliance & Leicester, Northern Rock, Reliance Bank, Nationwide and Coventry Building

Society. In October 2010, CIBC became the first bank in Canada to offer a debit card (the

CIBC Advantage Card) that offers access for point of sale shopping internationally, over the

internet or by mail or telephone orders using the Visa debit network. It also provides access to

the Interac network for point of sale shopping in Canada.



Visa Electron

Visa Electron is a debit or credit card available across most of the world, with the exception of

Canada, Australia, Ireland and the United States. The card was introduced by VISA in the

1980s and is a sister card to the Visa Debit card. The difference between Visa Electron and

Visa Debit is that payments with Visa Electron require that all the funds be available at the

time of transfer, i.e., Visa Electron card accounts may not be overdrawn. Visa Debit cards, on

the other hand, allow transfers exceeding available funds up to a certain limit. Some online

stores and all offline terminals (like on trains and aircraft) do not support Visa Electron

because their systems cannot check for the availability of funds. 



MasterCard


MasterCard Worldwide is an American multinational corporation with its headquarters in the

MasterCard International Global Headquarters in Harrison, New York, United States.

Throughout the world, its principal business is to process payments between the banks of

merchants and the card issuing banks or credit unions of the purchasers who use the

"MasterCard" brand debit and credit cards to make purchases. MasterCard Worldwide has

been a publicly traded company since 2006. Prior to its initial public offering, MasterCard

Worldwide was a membership organization owned by the 25,000+ financial institutions that

issue its card.


MasterCard, originally known as MasterCharge, was created by several California banks as a

competitor to the BankAmericard issued by Bank of America, which later became the Visa

credit card issued by Visa Inc. The original banks behind MasterCharge were United

California Bank (later First Interstate Bank and subsequently merged into Wells Fargo Bank),

Wells Fargo, Crocker National Bank (also subsequently merged into Wells Fargo), and the

Bank of California (subsequently merged into the Union Bank of California).