Which of the following terminals connects to a processor's computer directly?

The landline terminal is correct because it operates by directly connecting to a payment processor's computer through a physical landline connection, typically using wired telephone lines. This connection allows for reliable and secure transmission of transaction data between the terminal and the payment processor.

Landline terminals are often used in retail environments where consistent connectivity is critical, ensuring that transactions are processed promptly and accurately. When a sale occurs, the terminal transmits the transaction data in real-time through the dedicated line to the processor, facilitating immediate authorization and feedback.

In comparison, dial-up terminals do not maintain a constant connection, using a phone line to establish a connection only when needed, which can potentially lead to delays. Wireless terminals connect via cellular networks or Wi-Fi, but they do not directly connect to a processor's computer, as their transmissions occur over wireless signals rather than a dedicated line. EMV terminals are designed specifically for chip card transactions but can operate over various communication methods, including both landline and wireless. However, like the wireless terminal, they do not define a direct connection type on their own.