Which of the following memory chips stores the bootstrap loader program, which is widely used to start computer software for operation when the power is turned on?

1. A

   ROM

2. B

   DRAM

3. C

   POST

4. D

   SRAM

Appeared in: UP NHM CHO 7 Sept 2022(shift-1st)

Explanation

• ROM (Read-Only Memory) is a type of non-volatile memory, which means it retains its stored information even when not powered.
• It is used to store the firmware for a computer's motherboard, known as the BIOS (Basic Input/Output System) or UEFI.
• This firmware includes the bootstrap loader, which is the initial program the CPU executes on startup to perform hardware checks and load the main operating system.

Why Other Options Were Wrong

• Option B: DRAM (Dynamic Random Access Memory) is volatile, meaning it loses all data when the power is turned off. It serves as the computer's main 'working' memory where the operating system runs after being loaded, but it cannot store the initial startup program.
• Option C: POST (Power-On Self-Test) is not a memory chip. It is a diagnostic process or program that is part of the BIOS/UEFI firmware (which is stored on the ROM chip). It runs at startup to check that hardware components are functional.
• Option D: SRAM (Static Random Access Memory) is also a type of volatile memory. Due to its high speed and cost, it is used as CPU cache memory to store frequently accessed data from the main DRAM, reducing processing delays. It does not store the permanent boot program.

Related Visual

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Function of ROM in the computer boot process as background academic context rather than a clinical decision trigger.
• Nurses rely heavily on computers for managing Electronic Health Records (EHRs), documenting patient care, and accessing clinical information. A basic understanding of computer hardware helps in daily practice.
• Knowing the function of components like ROM helps in basic troubleshooting. For instance, if a computer fails to start and shows a BIOS/firmware error, the nurse can report the specific issue to the IT department more accurately.
• What if a hospital workstation's ROM chip fails or its firmware becomes corrupted? The computer would be unable to boot, preventing access to the EHR system. This could delay critical tasks like medication administration or accessing patient histories, highlighting the importance of reliable hardware in patient care settings.

How to Approach the Question

• First, analyze the question to identify the core requirement. The question asks for the memory chip that stores the 'bootstrap loader' to 'start' the computer when 'power is turned on'.
• The key concept here is that the instructions must be permanent and available immediately at power-on. This implies the need for non-volatile memory (memory that keeps its data without power).
• Next, evaluate the given options based on the principle of volatility:
• ROM (Read-Only Memory): This is non-volatile. It's designed to hold permanent data.
• DRAM (Dynamic Random Access Memory): This is volatile. It's the main 'working' memory.
• SRAM (Static Random Access Memory): This is also volatile. It's used for high-speed cache.

Concept Tested & Keywords

• Concept Tested: Function of ROM in the computer boot process
• Stem keywords: memory chips, bootstrap loader, start computer, power is turned on
• Lead-in keywords: Which
• Negative lead-in flag: false

Question ID

QBLLTFIgcG56Y9fMLSq5sg

Copy ID