CPU (Central processing unit) A CPU, or Central Processing Unit, is the main component of a computer system that performs the majority of processing tasks required by the system. It is often referred to as the “brain” of the computer. The CPU is responsible for executing instructions, performing calculations, managing memory, and controlling input and …
Internal Architecture of Intel 8086 Microprocessor The Intel 8086, also called the iAPX 86, is a 16-bit microprocessor designed by Intel Corporation in between 1976-1978. This Intel 8086 microprocessor gave rise to the x86 architecture or 16-bit architecture. The figure given below is the internal architecture of Intel 8086 microprocessor Features of 8086 Microprocessor: 8086 …
CPU (Central Processing Unit) CPU or central processing unit in computer is an electronic circuitry that carries out the instruction given by a computer program. CPU in computer execute instruction by performing basic arithmetic, logical, control and I/O operations as required per instruction. CPU in computer is considered to be the brain of the computer. …
What are the 6 steps followed by CPU in computer to Execute an Instruction? Read More »
Instruction Set Architecture (ISA): An instruction set is the interface between a computer’s software and its hardware, and thereby enables the independent development of these two computing realms. ISA is the set of basic instructions that a processor understands. ISA includes functional definition of operations, modes, and storage locations supported by hardware and precise description of …
The instruction set or the instruction set architecture (ISA) is the set of basic instructions that a processor understands. The instruction set is a portion of what makes up an architecture. Read More: Define Instruction Set Architecture. What are the main objectives of ISA in computer systems. Two initial types of instruction set architecture are CISC …
What are CISC & RISC? What are differences between CISC and RISC? Read More »
Control unit co-ordinates the transfer of data between registers of CPU or microprocessor and ALU. Control unit serves the instructions for ALU. Along with this, control unit, as its name implies, controls every other parts of the machine, their co-ordinations, traffic etc.
Arithmetic and Logic Unit (ALU): Arithmetic and Logic Unit is a like a calculator to a computer. ALU performs all arithmetic operations along with decision making functions. In modern CPU or Microprocessors, there can be more than one integrated ALU to speed up arithmetical and logical operations, such as; integer unit, floating point unit etc. …
Discuss the organization and functions of ALU or Arithmetic & Logic Unit Read More »
Memory Mapped I/O and Isolated I/O are two methods of performing input-output operations between CPU and installed peripherals in the system. Memory Mapped I/O: Memory mapped I/O uses the same address bus to connect both primary memory and memory of hardware devices (registers). Memory and registers of I/O devices gets assigned values, thus when CPU …
Addressing 5 ROM Chips, Each of 4 KB Using 74LS138 Decoder: The following diagram is representing the addressing of 5 ROM chips using 74LS138 where each chip is of 4 KB. Explanation: From the previously given figure 01 it can be found that the Chip Select (CS) of the 5 ROM chips has been attached …
Addressing 5 ROM Chips, Each of 4 KB Using 74LS138 Decoder Read More »
Interfacing the Microprocessor with Analog World: As computer used digital binary values whereas we have physical variables, a step by step process is used to convert the physical variable to binary data and again to physical variable. The figure is given below, (i) Transducer: A transducer is a device that …
