8085 Microprocessor vs. 8086 Microprocessor: Know the Difference
By Shumaila Saeed || Published on February 1, 2024
The 8085 is an 8-bit microprocessor with a 16-bit address bus, while the 8086 is a 16-bit microprocessor with a 20-bit address bus, marking a significant advancement in processing capabilities.
Key Differences
The 8085 Microprocessor is an 8-bit microprocessor, indicating it processes data 8 bits at a time. This architecture limits its speed and efficiency for complex operations. The 8086 Microprocessor, in contrast, is a 16-bit microprocessor, capable of handling more data at once, which enhances its computing power and efficiency for more demanding tasks.
Shumaila Saeed
Feb 01, 2024
The 8085 has a 16-bit address bus, capable of addressing up to 64KB of memory. This was sufficient for many applications in its era but limited for larger memory requirements. The 8086, with its 20-bit address bus, can address up to 1MB of memory, significantly expanding its capability in handling larger programs and more complex computations.
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Feb 01, 2024
The instruction set of the 8085 Microprocessor is simpler, designed for basic control and data manipulation tasks. It's easier for beginners to learn but limited in scope. The 8086 Microprocessor, with a more extensive instruction set, supports complex operations, making it more versatile for advanced programming and applications.
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Feb 01, 2024
The 8085 typically operates at a clock speed of up to 3 MHz, which defines its processing speed. It's adequate for simple control-oriented tasks. The 8086, on the other hand, operates at higher clock speeds (up to 10 MHz), offering improved performance and efficiency, particularly important for multitasking and graphic-intensive applications.
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Feb 01, 2024
The 8085 Microprocessor found widespread use in embedded systems and simple computing tasks due to its simplicity and lower cost. The 8086, being more powerful, paved the way for the development of the modern personal computer, supporting more complex operating systems and applications.
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Feb 01, 2024
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Comparison Chart
Primary Application
Embedded systems, basic tasks
Personal computers, complex applications
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Feb 01, 2024
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8085 Microprocessor and 8086 Microprocessor Definitions
8085 Microprocessor
Compatible with simpler instruction sets, ideal for beginner-level programming.
The robotics club used the 8085 microprocessor for their introductory courses.
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Jan 18, 2024
8086 Microprocessor
A 16-bit microprocessor by Intel, marking a significant advancement in computing.
The first personal computers were powered by the 8086 microprocessor.
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Jan 18, 2024
8085 Microprocessor
Introduced by Intel in 1976, known for its simplicity and reliability.
Early traffic light systems were often powered by the 8085 microprocessor.
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8086 Microprocessor
Features a 20-bit address bus, enabling it to handle up to 1MB of memory.
Advanced gaming consoles in the early 80s used the 8086 microprocessor for better performance.
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8085 Microprocessor
An 8-bit microprocessor used primarily in embedded systems.
The 8085 microprocessor controlled the operation of the old digital watch.
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8086 Microprocessor
Known for its higher clock speed up to 10 MHz, enhancing multitasking capabilities.
Graphic design software in the early days relied on the 8086 microprocessor.
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8085 Microprocessor
Operates at a maximum clock speed of 3 MHz, suitable for basic tasks.
The 8085 microprocessor was used in the first generation of home automation systems.
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Jan 18, 2024
8086 Microprocessor
Supports a complex instruction set, suitable for advanced computing needs.
Early versions of CAD programs were developed for systems with an 8086 microprocessor.
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Jan 18, 2024
8085 Microprocessor
A microprocessor with a 16-bit address bus, capable of addressing 64KB memory.
The 8085 microprocessor was central to the design of early calculators.
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Jan 18, 2024
8086 Microprocessor
Integral to the development of modern PCs and complex operating systems.
The 8086 microprocessor was at the heart of many pioneering computer systems in the 1980s.
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Jan 18, 2024
Repeatedly Asked Queries
Can the 8085 handle complex graphics?
Due to its limitations, the 8085 is not ideal for complex graphics.
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Feb 01, 2024
What is an 8085 microprocessor?
The 8085 is an 8-bit microprocessor by Intel, used in embedded systems.
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Feb 01, 2024
What distinguishes the 8086 microprocessor?
The 8086 is a 16-bit microprocessor, known for its role in early PCs.
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Feb 01, 2024
How much memory can the 8086 address?
The 8086 can address up to 1MB of memory.
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Feb 01, 2024
What's the maximum memory capacity of the 8085?
The 8085 can address up to 64KB of memory.
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Feb 01, 2024
Was the 8086 used in the original IBM PC?
Yes, the 8086 was used in IBM's first personal computer.
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Feb 01, 2024
What is the maximum clock speed of the 8086?
The 8086 can reach clock speeds up to 10 MHz.
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Feb 01, 2024
Can the 8085 run C++ programs?
The 8085's simplicity limits its ability to run C++ effectively.
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Feb 01, 2024
What type of instruction set does the 8085 use?
The 8085 uses a simpler instruction set for basic tasks.
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Feb 01, 2024
Is the 8086 good for multitasking?
Yes, the 8086's advanced capabilities make it suitable for multitasking.
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Feb 01, 2024
Can the 8085 support modern operating systems?
No, the 8085's capabilities are too limited for modern OS.
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Feb 01, 2024
Which processor is better for educational purposes?
The 8085 is often preferred for basic learning, while the 8086 for advanced concepts.
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Feb 01, 2024
Can the 8086 processor be used in embedded systems?
Yes, but it's often more than what's needed for simple embedded systems.
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Feb 01, 2024
Are both processors still in use today?
They're mostly used in educational settings; modern systems have more advanced processors.
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Feb 01, 2024
Is the 8086 compatible with advanced programming languages?
Yes, the 8086 can handle advanced languages like C++.
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Feb 01, 2024
What is the clock speed of the 8085?
The 8085 operates at a clock speed of up to 3 MHz.
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Feb 01, 2024
What instruction set is used by the 8086?
The 8086 supports a more complex instruction set for diverse applications.
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Feb 01, 2024
How did the 8086 impact the evolution of computers?
The 8086 was pivotal in advancing personal computing technology.
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Feb 01, 2024
Are there any similarities between the two processors?
Both are early Intel microprocessors, setting the stage for modern computing.
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Feb 01, 2024
What is the main limitation of the 8085?
Its 8-bit architecture and limited memory capacity restrict its applications.
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Feb 01, 2024
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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