Final answer:
A modem is a device that converts digital data into analog data for transmission over phone lines, playing a significant role in the Digital Computer Revolution by enabling efficient data processing and communication.
Step-by-step explanation:
A modem is a device that changes digital computer data into analog data that can be sent over phone lines. This conversion is essential for transmitting digital signals, such as cell phone conversations and digital television images, through traditional analog systems. The process allows digital devices to transmit information effectively, even when signals are weak, and it also enables the use of computer algorithms for data compression.
The invention of integrated circuits, containing numerous transistors on a single piece of silicon, was pivotal to the Digital Computer Revolution. These advancements increased the capabilities of digital computers in processing large volumes of data compared to earlier analog computers. Digital computers operate by translating information into binary code, creating complex series of ones and zeros, which are more suitable for data manipulation and transmission over various media, including phone lines, microwave transmission systems, and communications satellites.