TestOut LabSim A+ Certification Practice Exam

How is an internal laptop keyboard typically connected to the system?

1. USB cable

2. PATA cable

3. Ribbon cable

4. SATA cable

The correct answer is: Ribbon cable

An internal laptop keyboard is typically connected to the system using a ribbon cable. Ribbon cables are flat and flexible, containing multiple wires that run parallel to each other, which makes them well-suited for connecting components within the compact confines of a laptop. This connection allows for a straightforward and reliable way to transmit data between the keyboard and the motherboard. The design of ribbon cables also helps save space within the laptop, which is especially important given the limited internal volume to work with compared to standard desktop components. This method of connection is prevalent in many laptop models, providing a simple and efficient means of facilitating communication with the system’s input devices. In terms of the other choices, USB cables are generally used for external keyboards rather than internal connections. PATA cables are used for hard drives and optical drives in older systems, while SATA cables connect storage devices in more recent models. Thus, these alternatives do not serve the function of connecting an internal laptop keyboard.