Fetching
Machine cycle
When a program begins, the memory address of the first instruction is placed in a part of the microprocessor's control unit called the program counter (PC). The program counter keeps track of the address of the next instruction to be executed, ensuring the CPU can fetch and process instructions in the correct sequence. As each instruction is executed, the program counter is updated to point to the subsequent instruction in memory.
define program i. program means set of instruction which are required for a particular type of task is called program ii. set of instruction or commands which are given for the computer to do different activity or jobs or works is called program define programming the process of creating/modifying a program; some people's job, others' hobby
Set of instructions is called a PROGRAM. And set of program is called a SOFTWARE.
a program is called a program. a set of instructions is called a manual.
An instruction book or program that takes users through a prescribed series of steps to learn a complex program is called a tutorial.
command
is it called purification or refining
Data = values that a program can use.Ans.2: = A Program is the set of instructions.
The part of the processor that indicates which machine instruction is next in line for execution is called the Program Counter (PC). The Program Counter holds the memory address of the next instruction to be fetched and executed. After the current instruction is executed, the PC is updated to point to the subsequent instruction, ensuring the sequential flow of execution in a program.
The instruction register holds a pointer to the current instruction (in working memory) while the next instruction register points to the next instruction (the first instruction immediately after the current instruction's operands). If the current instruction is a jump instruction, it can change the next instruction register, allowing the program to branch to a new instruction once the jump instruction is processed. The next instruction pointer is automatically moved into the current instruction register once the current instruction has been processed. The entire process of executing an instruction is known as the fetch-decode-execute cycle.
The process of transferring instruction codes from memory location to instruction queue register is called opcode fetch.