A user has called the help desk you work at describing a broken keyboard. They state their keyboard has special slot they insert a credit card like device into which allows them to log into their PC. What type of device are they referring to?
A smart card is a small plastic card much like a credit card with an integrated circuit that can be used to authenticate a user.
A smart card, chip card, or integrated circuit card (ICC or IC card) is a physical electronic authorization device, used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit (IC) chip. Many smart cards include a pattern of metal contacts to electrically connect to the internal chip. Others are contactless, and some are both. Smart cards can provide personal identification, authentication, data storage, and application processing. Applications include identification, financial, mobile phones (SIM), public transit, computer security, schools, and healthcare. Smart cards may provide strong security authentication for single sign-on (SSO) within organizations. Numerous nations have deployed smart cards throughout their populations.
The universal integrated circuit card, or SIM card, is also a type of smart card. As of 2015, 10.5 billion smart card IC chips are manufactured annually, including 5.44 billion SIM card IC chips.