Introduction to Java Programming Practice Test 2025 – All-in-One Guide to Mastering Java!

The bus in a computer system plays a crucial role in connecting the various components, such as the CPU, memory, and input/output devices. Its primary responsibility is to facilitate the transfer of data and power between these components, enabling them to communicate effectively. This includes carrying the data that is being processed, addresses indicating where data is located, and control signals that manage the operations of the system.

In contrast to the other options, the bus does not execute instructions, as that task is performed by the CPU. It also does not store data temporarily; that function is generally associated with memory (such as RAM). Finally, compiling high-level code into machine code is a task handled by compilers, which is separate from the duties of the bus itself. Hence, the correct understanding of the bus's function emphasizes its role in connecting and enabling communication within the computer system.