what are cpu device
CPU is not a peripheral device.
peripheral
Peripheral devices are connected and logged to the CPU through interfaces like USB, SATA, or PCIe, which facilitate communication between the device and the processor. When a peripheral is connected, the operating system detects it using device drivers that manage data transfer and functionality. The CPU then communicates with the device through memory-mapped I/O or direct I/O, allowing the system to recognize and interact with the peripheral efficiently.
It's called a "Peripheral Adapter" as most add-in modules connect to devices outside the computer. There is one exception. On much older PCs, a user could add a math coprocessor board which did not attach to any external device. This was typically called a "daughter board" and the main processor board was called the "mother board".
By device do you mean hardware or peripheral? If hardware: it's the CPU If you mean peripheral it depends. It can either be your printer or your monitor, depending how big you want your monitor to be.
subroutine
A micro processor is commonly thought to be the central processing unit of a computer system. This CPU may contain peripheral devices on the same chip, and connects to peripheral devices located on different chips. Thus, a micro processor is not commonly thought to be a peripheral. However, a micro processor is often used to create a peripheral device. For example, a hard disk drive is a peripheral device to your PC's CPU. However, the electronics within that hard disk drive itself may contain another micro processor. This micro processor acts as the CPU within the realm of the hard disk drive, but towards the total PC system, it implements a peripheral device of the central processing unit.
When a peripheral device needs immediate attention from the operating system, it generates an interrupt signal. This signal notifies the CPU that the device requires processing, prompting the OS to pause its current tasks and address the request. The OS then determines the appropriate action to take, such as reading data from the device or handling an error. This mechanism allows for efficient and timely communication between the CPU and peripheral devices.
it is used to interface between controller and peripheral device.. peripheral device otherwise called external device such as LED,LCD...
No, the printer has a internal processor that manages its functions, but yes, it is a device that connects to the system unit. the computer's processor HELPS managing it, but the printer's processor do the hard stuff
Docking Station
external data bus