In the changing world of technologies, the devices used are also changing. Let us take a look at the changes between 8085 series of microprocessors and 8086 series of microprocessors.
|Serial No.||8085 microprocessor||8086 microprocessor|
|1||The data bus is of 8 bits.||The data bus is of 16 bits.|
|2||The address bus is of 16 bits.||The address bus is of 20 bits.|
|3||The memory capacity is 64 KB.Also 8085 Can Perform Operation Upto 2^8 ie. 256 numbers. A number greater than this is to taken multiple times in 8 bit data bus.||The memory capacity is 1 MB.Also 8086 Can Perform Operation upto 2^16 ie. 65,536 numbers.|
|4||The input/output port addresses are of 8 bits.||The input/output port addresses are of 8 bits.|
|5||The operating frequency is 3.2 MHz.||The operating frequency is 5 MHz, 8MHZ,10MHZ.|
|5||8085 MP has Single Mode Of Operation.||8086 MP has Two Modes Of Operation.
1. Minimum Mode = SingLe CPU PROCESSOR
2. Maximum Mode = Multiple CPU PROCESSOR.
|6||It not have multiplication and division instructions.||It have multiplication and division instructions.|
|7||It does not support pipe-lining.||It supports pipe-lining as it has two independent units Execution Unit (EU) and Bus Interface Unit (BIU).|
|8||It does not support instruction queue.||It supports instruction queue.|
|9||Memory space is not segmented.||Memory space is segmented.|
|10||It consists of 5 flags(Sign Flag, Zero Flag, Auxiliary Carry Flag, Parity Flag, Carry Flag).||It consists of 9 flags(Overflow Flag, Direction Flag, Interrupt Flag, Trap Flag, Sign Flag, Zero Flag, Auxiliary Carry Flag, Parity Flag, Carry Flag).|
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