In computer science, an instruction set architecture (ISA), also called computer architecture, is an abstract model of a computer.A device that executes instructions described by that ISA, such as a central processing unit (CPU), is called an implementation.. In general, an ISA defines the supported instructions, data types, registers, the hardware support for managing main memory, …

Industry Standard Architecture (ISA) is the 16-bit internal bus of IBM PC/AT and similar computers based on the Intel 80286 and its immediate successors during the 1980s. The bus was (largely) backward compatible with the 8-bit bus of the 8088-based IBM PC, including the IBM PC/XT as well as IBM PC compatibles. Originally referred to as the PC bus (8-bit) or AT bus (16 …

The Instruction Set Architecture (ISA) is the part of the processor that is visible to the programmer or compiler writer. The ISA serves as the boundary between software and hardware. ... RISC stands for Reduced Instruction Set Computer. The ISA is composed of instructions that all have exactly the same size, usualy 32 bits. Thus they can be ...

The Intel 80286 (also marketed as the iAPX 286 and often called Intel 286) is a 16-bit microprocessor that was introduced on February 1, 1982. It was the first 8086-based CPU with separate, non-multiplexed address and data buses and also the first with memory management and wide protection abilities.The 80286 used approximately 134,000 transistors in its original …

In computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64 bits wide. Also, 64-bit CPUs and ALUs are those that are based on processor registers, address buses, or data buses of that size. A computer that uses such a processor is a 64-bit computer.. From the software perspective, 64-bit computing means the use of machine code …

Nov 30, 2021 · Role of computer Architecture. The main role of Computer Architecture is to balance the performance, efficiency, cost and reliability of a computer system. For Example − Instruction set architecture (ISA) acts as a bridge between computer's software and hardware. It works as a programmer's view of a machine.

Micro-architecture is the structural design of a microprocessor. This computer organization leverages a method where the instruction set architecture holds a built-in processor. Engineers and hardware scientists implement instruction set architecture (ISA) with various micro-architectures that vary because of changing technology.

2. Computer Architecture Multiple Choice Questions on Machine Instructions and Programs. The section contains Computer Architecture questions and answers on various numbers and their operations, instructions and their sequencing, memory locations, stacks, passing of parameters and assembly language.

An important embodiment of semantics is the instruction set architecture (ISA) of the system. The ISA is a logical (usually binary) representative encoding of the basic set of distinct operations that a computer architecture may perform, and by which application programs specify the useful work to be done.

A complex instruction set computer (CISC / ˈ s ɪ s k /) is a computer architecture in which single instructions can execute several low-level operations (such as a load from memory, an arithmetic operation, and a memory store) or are capable of multi-step operations or addressing modes within single instructions. The term was retroactively coined in contrast to reduced instruction …