Question: What Is The Difference Between 8086 And 8088?

What are the main differences between the 80286 and the 8086 processors?

80286 was advance version of microprocessor 8086 with 24 bit address bus it is also 16 bit microprocessor it operates in two mode private and virtual mode.

it can access upto 1 gb of logical memory.

80386 was 32 bit microprocessor.

that uses pipeline concept it operates in three mode virtual 8086, real and protected..

What are the salient features of 80286?

Microprocessors Questions and Answers – Salient Features of 80286The 80286 is able to address the physical memory of. … The 80286 is able to operate with the clock frequency of. … The management of the memory system required to ensure the smooth execution of the running process is done by.More items…

What is the function of Biu?

BIU (Bus Interface Unit) BIU takes care of all data and addresses transfers on the buses for the EU like sending addresses, fetching instructions from the memory, reading data from the ports and the memory as well as writing data to the ports and the memory.

What is EU and Biu in 8088 microprocessor?

The 8086 CPU is organized as two separate processors, called the Bus Interface Unit (BIU) and the Execution Unit (EU). … The only difference between an 8088 microprocessor and an 8086 microprocessor is the BIU. In the 8088, the BIU data bus path is 8 bits wide versus the 8086’s 16-bit data bus.

What are the flags in 8086?

There are 3 control flags in 8086 microprocessor and these are:Directional Flag (D) – This flag is specifically used in string instructions. … Interrupt Flag (I) – This flag is for interrupts. … Trap Flag (T) – This flag is used for on-chip debugging.

Which Interrupt has the highest priority?

TRAPTRAP is the internal interrupt that has the highest priority among all interrupts except the divide by zero exception.

Does 8086 have memory?

The 8086 architecture uses the concept of segmented memory. 8086 can able to access a memory capacity of up to 1 megabyte. This 1 megabyte of memory is divided into 16 logical segments. Each segment contains 64 Kbytes of memory.

What are the advantages of 8086 microprocessor?

The 8086 included native support for more complex mathematical operations than the 8085 did, making it much easier to perform calculations using the built-in capability of the chip, without having to write your own routines to do the math. Doing the math in hardware is also faster.

Is 8086 a RISC or CISC?

The 8086-based processors are an example of a complex instruction set computer, or CISC, architecture. Many newer processor designs use a reduced instruction set computer, or RISC, architecture instead.

Why is 8086 divided into BIU and EU?

The architecture of 8086 is divided into two functional parts i.e. … Functional division of architecture speeds up the processing, since BIU and EU operate parallel and independently i.e., EU executes the instructions and BIU fetches another instruction from the memory simultaneously.

What is the maximum memory 8088 can access?

The 8088 and 8086 used segmented addressing to allow these chips to address 1 MB of memory using 20 address bits = 1,048,576). They used 16-bit segment registers to derive the actual memory address.

Which microprocessor the 8088 or 8086 was released first?

The Intel 8088, released July 1, 1979, is a slightly modified chip with an external 8-bit data bus (allowing the use of cheaper and fewer supporting ICs), and is notable as the processor used in the original IBM PC design….Intel 8086.General informationLaunched1978Discontinued199819 more rows

Why it is called 8086 microprocessor?

When they made 8 bit processors, the double wide 4004 was the 8008, and the double wide 4040 was the 8080. The 8085 was the 5 volt only version of the 8080. When Intel made an upgraded 8085 into a 16 bit processor, the next number was 8086. They liked this, as it seemed to fit the 16 bit nature.

Where is 8086 microprocessor used?

Intel 8086 A sixteen bit microprocessor chip used in early IBM PCs. The Intel 8088 was a version with an eight-bit external data bus. The Intel 8086 was based on the design of the Intel 8080 and Intel 8085 (it was source compatible with the 8080) with a similar register set, but was expanded to 16 bits.