The x86 Microprocessors: 8086 to Pentium, Multicores, Atom and the 8051 Microcontroller, 2nd Edition

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Basics of Computer Systems

IN THIS CHAPTER, YOU WILL LEARN

• The brief history of Intel’s microprocessors and their use in personal computers.
• The general principles of computer architecture.
• The operation of the data, address and control buses of a computer.
• The distinction between RISC and CISC computing.
• The comparison between assembly and high level language programming.
• The binary, hexadecimal and BCD number systems.
• Number format conversions.
• Computer arithmetic using different number systems.
• The processing of negative numbers as done by a computer.
• The programming model and programming of the 8085 microprocessor.
• The pin out and hardware features of 8085.

0.1 | A Brief History of Microprocessors

What is a microprocessor? We usually ...