Ohjainkortin

Ohjainkortin is a Finnish term that translates to "controller card" or "driver card" in English. It refers to a type of expansion card that is installed in a computer or other electronic device to provide specific control functions for a peripheral or system component. These cards contain the necessary circuitry and often dedicated processors to manage the communication and operation of the device they are designed for.

Controller cards can serve a wide variety of purposes. For example, they might be used to manage storage devices such as hard drives or solid-state drives, providing interfaces like SATA or NVMe. Other common applications include graphics cards, which handle video output and rendering, and network interface cards (NICs) that enable devices to connect to a network. Sound cards, USB controllers, and specialized input/output (I/O) cards also fall under this category.

The primary function of an ohjainkortti is to act as an intermediary between the central processing unit (CPU) and the peripheral device. It translates commands from the CPU into instructions that the peripheral can understand and processes data coming from the peripheral before sending it back to the CPU. This offloads processing tasks from the main CPU, improving overall system performance and efficiency. The installation of an ohjainkortti is typically done by inserting it into an expansion slot on the motherboard, such as a PCI, PCIe, or AGP slot, depending on the card and the motherboard's compatibility.