Business/02. Who executes the Program and where program is resides.
Business/02. Who executes the Program and where program is resides.
In the context of computers and programming, your question โ
โWho executes the program and where the program resides?โ โ can be interpreted in the following way:
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Who Executes the Program?
The Central Processing Unit (CPU) executes the program.
- The CPU is the core component of a computer that performs all the instructions of a program.
- It fetches instructions from memory, decodes them, and then executes them.
- In modern systems, the Operating System (OS) plays a crucial role in loading the program into memory and coordinating with the CPU.
Where Does the Program Reside?
A program typically resides in different places at different stages:
| Stage | Where the Program Resides |
|---|---|
| Before Execution | Secondary Storage (e.g., Hard Disk, SSD) โ Stored as executable files (.exe, .out, .class, etc.) |
| During Execution | Main Memory (RAM) โ The OS loads the program into RAM so the CPU can access and execute it |
| Instruction Fetch | CPU Registers / Cache โ The CPU temporarily holds instructions/data here during execution |
Summary
- Executed by: CPU (under control of OS)
- Resides in:
- Stored on disk (before running)
- Loaded into RAM during execution
- Fetched by CPU from RAM into registers/cache for execution
Let me know if you meant this in a business or project management context (e.g., business program execution), and I can explain that too.