Yes, many modern scales can connect to a computer or printer for record-keeping. These scales often come equipped with digital interfaces such as USB, Bluetooth, or Wi-Fi, allowing them to communicate with external devices. 
USB connectivity is common in many scales, enabling direct connection to a computer. This allows for easy data transfer and integration with software applications for tracking and analyzing weight data. Some scales come with proprietary software, while others are compatible with third-party applications, facilitating seamless data management.
Bluetooth-enabled scales offer wireless connectivity, allowing them to sync with computers, smartphones, or tablets. This feature is particularly useful for personal health scales, as it enables users to track their weight and other health metrics over time through dedicated apps.
Wi-Fi-enabled scales provide even more flexibility, as they can connect to a network and automatically upload data to cloud-based services. This is beneficial for both personal and professional use, as it allows for remote access to data and integration with various health and fitness platforms.
For scales used in industrial or commercial settings, RS-232 or Ethernet connections are often available. These interfaces allow scales to connect to printers for immediate printouts of weight data or to computers for more comprehensive data management.
In summary, the ability of scales to connect to computers or printers greatly enhances their functionality, providing users with efficient ways to record, track, and analyze weight data. This connectivity is achieved through various interfaces, including USB, Bluetooth, Wi-Fi, RS-232, and Ethernet, catering to different needs and preferences.