PPC 640

The Amstrad PPC 640, released in 1987, was a portable PC that combined a full-featured IBM-compatible computer with a 79-key keyboard, 640KB of RAM, and a 3-inch double-density floppy disk drive. One of its key features was a built-in 2400 baud modem, allowing users to connect to online services and transfer data over phone lines. In contrast to the Amstrad PPC 512, which had 512KB of RAM and no built-in modem, the PPC 640 offered more memory and the added functionality of remote communication, making it a more robust tool for mobile professionals and businesses. Both models shared a similar design and features, including a monochrome LCD display and a built-in parallel printer port, but the PPC 640’s extra RAM and modem gave it a slight edge in terms of capabilities.