Which port is commonly used by slower I/O devices and handles data serially?

Which port is commonly used by slower I/O devices and handles data serially?

• A. USB Port
• B. Serial Port
• C. Parallel Port
• D. Thunderbolt Port

Answer: (B)

The serial port is commonly used by slower I/O devices due to its design for transmitting data one bit at a time over a single channel. This method of data transfer makes it particularly suitable for devices that do not require high-speed communications, such as mice, keyboards, and some types of routers and modems. In contrast, other ports like the USB and Thunderbolt ports support faster data transfer rates and are designed for more modern devices requiring higher bandwidth and performance. Parallel ports, while capable of transferring multiple bits simultaneously, are also less common today owing to their slower speeds compared to latter technologies. Thus, the characteristic of a serial port to handle data serially makes it the appropriate answer for this context.

The serial port is commonly used by slower I/O devices due to its design for transmitting data one bit at a time over a single channel. This method of data transfer makes it particularly suitable for devices that do not require high-speed communications, such as mice, keyboards, and some types of routers and modems.

In contrast, other ports like the USB and Thunderbolt ports support faster data transfer rates and are designed for more modern devices requiring higher bandwidth and performance. Parallel ports, while capable of transferring multiple bits simultaneously, are also less common today owing to their slower speeds compared to latter technologies. Thus, the characteristic of a serial port to handle data serially makes it the appropriate answer for this context.