What characteristic of read-only memory (ROM) makes it useful?
Correct answer: B. Data in ROM is non-volatile, that is, it remains there even without electrical power.
- A. ROM information can be easily updated.
- B. Data in ROM is non-volatile, that is, it remains there even without electrical power.
- C. ROM provides very large amounts of inexpensive data storage.
- D. ROM chips are easily swapped between different brands of computers.Exploring Educational Science Kits
Explanation
ROM is non-volatile memory, so its contents remain stored when electrical power is removed. It is not intended for easy updating and does not provide large, inexpensive storage like a disk.
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About Hardware and Software
Hardware includes the physical components of a computer, such as the CPU, motherboard, registers, memory, storage devices and peripheral equipment. Software covers system software, application software, utilities, drivers and firmware, with attention to how the operating system manages hardware and how software differs from the physical equipment it controls.
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