What is the differencee between modern and old sewing machines?

Modern sewing machines typically feature advanced technology, including computerized controls, automatic threading, and a variety of built-in stitches, making them easier and more versatile for various sewing projects. In contrast, old sewing machines often rely on mechanical components and manual operation, offering fewer stitch options and requiring more hands-on adjustments. Additionally, modern machines are generally lighter, more portable, and designed for ease of use, while vintage machines are often more robust and built to last. Overall, the evolution reflects a shift towards convenience and functionality in sewing.