What Is a Modem Card?
A modem card provides modem functionality, enabling a computer’s internet connection either internally or through expansion slots.
This technology divides into two categories: analog and digital. Analog modem cards interface with analog communication lines, whereas digital modem cards operate with digital lines. Their primary function is to convert digital signals from the computer to analog for transmission over communication lines and vice versa, translating analog signals into digital formats the computer can process.
Significant advantages of modem cards include their greater expandability compared to computers’ built-in modems, ease of replacement in case of failure, and cost-effectiveness over internal modems.