Here's the question bank on all the computer awareness topics.
Which of the following components of a computer system is used to store data permanently?
The correct answer is Hard Disk.Hard DiskA hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electromechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material.The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces.Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. Additional Information DRAMDynamic random access memory (DRAM) is a type of semiconductor memory that is typically used for the data or program code needed by a computer processor to function.DRAM is a common type of random access memory (RAM) that is used in personal computers (PCs), workstations, and servers.SDRAMSDRAM (synchronous DRAM) is a generic name for various kinds of dynamic random access memory (DRAM) that are synchronized with the clock speed that the microprocessor is optimized for.This tends to increase the number of instructions that the processor can perform in a given time.SRAMStatic random-access memory is a type of random-access memory that uses latching circuitry to store each bit.SRAM is a volatile memory, data is lost when power is removed.The term static differentiates SRAM from DRAM which must be periodically refreshed.
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