Product details

• ABB Type Designation:
• PM150
  
• Catalog Description:
• Processor Module
• Product Net Weight:
• 2.8 kg

The processor consists of central processing unit, main memory, input-output interface, plus peripheral equipment to form a complete computer system. A processor is a part that processes stored programs and data in a computer system and executes instructions according to the steps specified in the program. A program is a sequence of instructions that describes how a processor completes a task. Instruction is the unit of information that the processing function directly interprets and executes.

There are many indexes and parameters for the processing power of a processor. It is usually measured by the fastest million instructions executed per second (MIPS). For processors with vector processing power, the maximum number of floating point processing results per second (MFLOPS) is measured. In addition, processing data rate (PDR) is often used to evaluate the processing power of a processor. The processing data rate (PDR) is defined as the product of the average number of bits transferred per instruction executed and the average rate of instruction processing. In the early computers, the structure of the processor is centered on the arithmetic machine, and most of them use serial working mode. The input-output (I/O) transmission of data must pass through an arithmetic machine. With solid-state electronics replacing vacuum electronics, the data processing power of the central processing unit (CPU) has greatly increased. The data transmission speed of electromechanical peripherals can no longer be compared with it. Therefore, the transmission control unit of input-output operation is separated from the central processor to become the interface unit, channel or direct memory access (DMA) unit, and the design technology of interrupt system has emerged, which effectively enhances the processing power of the processor. At the same time, the processor architecture changed to be main-memory-centric. After that, the bus structure for interconnecting the components of the processor appeared. With the progress of microelectronics technology and the development of computer system structure, it has been able to use large-scale integrated circuits to form different structures and adapt to different purposes of the processor, such as array processor, vector processor, array processor, database processor, input-output processor and the whole processor made on a few silicon chips of the microprocessor.

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