8237 010100

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8237 is a type of I/O chip for 8-bit personal computers. It is an intelligent peripheral with an onboard processor and supporting circuitry and it was designed to do data I/O operations efficiently. The chip was immensely popular and was used in many personal computers in the late 80s and early 90s.

The "010100" in the name stands for "one page, one hundred ports". 8237 has four data ports that can be mapped to any memory page, and these ports can control up to one hundred I/O devices. This makes 8237 incredibly efficient and helps system designers make use of hardware resources in a much more efficient manner. Additionally, the 8237 chip allows for direct memory access, which reduces the amount of time the CPU needs to spend on data I/O tasks.

8237 can be used in a wide variety of applications, from network/internet-related tasks such as file transfer and data streaming to simply transferring data between storage devices. For example, 8237 can be used to control the transfer of data from a hard disk to a printer, or from a recordable optical disk to the system\'s RAM. It also helps streamline data processing tasks such as sorting, searching and merging large amounts of data.

The working principle behind 8237 is fairly simple and straightforward. It uses four data ports to control up to one hundred I/O devices. When an I/O operation is requested, the 8237 chip first reads the data from the source device and then writes it to the destination device. The 8237 chip then sends an interrupt signal to the CPU, which handles the interrupt and performs any necessary processing on the data.

Overall, the 8237 chip is an incredibly useful and versatile I/O device for 8-bit personal computers. It can be used for a wide variety of applications and helps system designers make use of hardware resources in a much more efficient manner. Additionally, its direct memory access capabilities make it a great choice for any data I/O tasks.

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