Which of the following memories must be refreshed many times per second?
Correct answer: B. Dynamic RAM
- A. Static RAM
- B. Dynamic RAM
- C. EPROM
- D. ROM
Explanation
Dynamic RAM stores bits in capacitors that gradually lose their charge, so it must be refreshed repeatedly. Static RAM retains data while powered and does not require this refresh cycle.
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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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