COMPUTER DATA FORMATS Successful programming requires a precise understanding of data formats. In this section, many common computer data formats are described as they are used with the Intel family of micro- processors. Commonly, data appear as ASCII, Unicode, BCD, signed and unsigned integers, and floating-point numbers (real numbers). Other forms are available, but are […]
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Posts by Farahat
QUESTIONS AND PROBLEMS ON INTRODUCTION TO THE MICROPROCESSOR AND COMPUTER.
QUESTIONS AND PROBLEMS 1. Who developed the Analytical Engine? 2. The 1890 census used a new device called a punched card. Who developed the punched card? 3. Who was the founder of IBM Corporation? 4. Who developed the first electronic calculator? 5. The first electronic computer system was developed for what purpose? 6. The first […]
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SUMMARY OF INTRODUCTION TO THE MICROPROCESSOR AND COMPUTER.
SUMMARY 1. The mechanical computer age began with the advent of the abacus in 500 B.C. This first mechanical calculator remained unchanged until 1642, when Blaise Pascal improved it. An early mechanical computer system was the Analytical Engine developed by Charles Babbage in 1823. Unfortunately, this machine never functioned because of the inability to create […]
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INTRODUCTION TO THE MICROPROCESSOR AND COMPUTER:NUMBER SYSTEMS.
NUMBER SYSTEMS The use of the microprocessor requires a working knowledge of binary, decimal, and hexadecimal numbering systems. This section of the text provides a background for those who are unfamiliar with these numbering systems. Conversions between decimal and binary, decimal and hexadecimal, and binary and hexadecimal are described. Digits Before numbers are converted from […]
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INTRODUCTION TO THE MICROPROCESSOR AND COMPUTER:The Microprocessor-Based Personal Computer System
1–2 THE MICROPROCESSOR-BASED PERSONAL COMPUTER SYSTEM Computer systems have undergone many changes recently. Machines that once filled large areas have been reduced to small desktop computer systems because of the microprocessor. Although these desktop computers are compact, they possess computing power that was only dreamed of a few years ago. Million-dollar mainframe computer systems, […]
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INTRODUCTION TO THE MICROPROCESSOR AND COMPUTER:A Historical Background The Mechanical Age,The Electrical Age, Programming Advancements,The Microprocessor Age and The Modern Microprocessor.
CHAPTER 1 Introduction to the Microprocessor and Computer INTRODUCTION This chapter provides an overview of the Intel family of microprocessors. Included is a discus- sion of the history of computers and the function of the microprocessor in the microprocessor– based computer system. Also […]
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80286 MICROPROCESSOR
80286 MICROPROCESSOR 8.1 Salient Features of 80286 The 80286 is the first member of the family of advanced microprocessors with memory management and protection abilities. The 80286 CPU, with its 24-bit address bus is able to address 16 Mbytes of physical memory. Various versions of 80286 are available that runs on 12.5 MHz , 10 […]
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RS 232 Serial Communication Standards
8.4 RS 232 Serial Communication Standards In serial I/O, data can be transmitted as either current or voltage. When data is transmitted as voltage, the commonly used standard is known as RS-232C. This standard was developed by Electronic Industries Association (EIA), USA and adopted by IEEE. RS-232 standard proposes a maximum of 25 signals for […]
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NUMERIC DATA PROCESSOR 8087
8.3 NUMERIC DATA PROCESSOR 8087 The numeric data processor is a coprocessor which has been designed to work under the control of the 8086 processor. It offers additional numeric processing capabilities. It is available in 5 MHz, 8 MHz and 10 MHz versions 8086 will perform the opcode fetch cycles and identify the instructions for […]
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SERIAL COMMUNICATION USING 8251
8.2 SERIAL COMMUNICATION USING 8251 8251 is a Universal Synchronous and Asynchronous Receiver and Transmitter compatible with Intel’s processors. This chip converts the parallel data into a serial stream of bits suitable for serial transmission. It is also able to receive a serial stream of bits and convert it into parallel data bytes to be […]
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