Microprocessor

Developer's DescriptionBy IntelitechA silicon chip that contains a CPU.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.Three basic characteristics differentiate microprocessors:Instruction set: The set of instructions that the microprocessor can execute.bandwidth : The number of bits processed in a single instruction.clock speed : Given in megahertz (MHz), the clock speed determines how many instructions per second the processor can execute.In 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.In addition to bandwidth and clock speed, microprocessors are classified as being either RISC (reduced instruction set computer) or CISC(complex instruction set computer).Topics Covered in this App are Listed BelowOverviewClassification8085 Architecture8085 Pin Configuration8085 Addressing Modes & Interrupts8085 Instruction Sets8086 Overview8086 Functional Units8086 Pin Configuration8086 Instruction Sets8086 Interrupts8086 Addressing ModesMultiprocessor Configuration Overview8087 Numeric Data ProcessorI/O Interfacing Overview8279 - Programmable Keyboard8257 DMA ControllerMicrocontrollers - Overview8051 Architecture8051 Input Output Ports8051 Input Output Ports8051 Interrupts8255A - Programmable Peripheral InterfaceIntel 8255A - Pin DescriptionIntel 8253 - Programmable Interval TimerIntel 8253/54 - Operational Modes