â´A silicon chip that contains a CPU. In the world of personal computers, the terms microprocessor and CPU are used interchangeably. At the heart of all personal computers and most workstations sits a microprocessor. Microprocessors also control the logic of almost all digital devices, from clock radios to fuel-injection system for automobiles.â´
â° Three basic characteristics differentiate microprocessors: âą
âē Instruction set: The set of instructions that the microprocessor can execute.
âē bandwidth : The number of bits processed in a single instruction.
âē clock speed : Given in megahertz (MHz), the clock speed determines how many instructions per second the processor can execute.
âĻIn both cases, the higher the value, the more powerful the CPU. For example, a 32-bit microprocessor that runs at 50MHz is more powerful than a 16-bit microprocessor that runs at 25MHz.âĻ
âĻIn addition to bandwidth and clock speed, microprocessors are classified as being either RISC (reduced instruction set computer) or CISC(complex instruction set computer).âĻ
ãTopics Covered in this App are Listed Belowã
âĸ Overview
âĸ Classification
âĸ 8085 Architecture
âĸ 8085 Pin Configuration
âĸ 8085 Addressing Modes & Interrupts
âĸ 8085 Instruction Sets
âĸ 8086 Overview
âĸ 8086 Functional Units
âĸ 8086 Pin Configuration
âĸ 8086 Instruction Sets
âĸ 8086 Interrupts
âĸ 8086 Addressing Modes
âĸ Multiprocessor Configuration Overview
âĸ 8087 Numeric Data Processor
âĸ I/O Interfacing Overview
âĸ 8279 - Programmable Keyboard
âĸ 8257 DMA Controller
âĸ Microcontrollers - Overview
âĸ 8051 Architecture
âĸ 8051 Input Output Ports
âĸ 8051 Input Output Ports
âĸ 8051 Interrupts
âĸ 8255A - Programmable Peripheral Interface
âĸ Intel 8255A - Pin Description
âĸ Intel 8253 - Programmable Interval Timer
âĸ Intel 8253/54 - Operational Modes
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