What is the number of pins in the Intel 8089 I/O processor?

Correct option is B

The Intel 8089 I/O processor is a co-processor designed for I/O management. It comes with 40 pins in its physical package. These pins are used for communication, control, and data transfer with the main processor and peripherals.
Important Key Points:
1. The Intel 8089 is an input/output processor (IOP) used alongside microprocessors like the Intel 8086/8088.
2. It is capable of direct memory access (DMA), which allows it to transfer data directly between memory and peripherals without CPU intervention.
3. The 40-pin DIP (Dual Inline Package) configuration is common for processors of that era.
Knowledge Booster:
· 20 pins: Typical of simpler integrated circuits but insufficient for an I/O processor like 8089.
· 64 pins: Used in more advanced processors for additional functionality.
· 24 pins: Insufficient for the I/O functionalities of Intel 8089.
· 80 pins: Found in modern microcontrollers or processors but not in Intel 8089.