INPUTOUTPUT AND STORAGE DEVICES
STORAGE DEVICES HARD DISK SSD AND FLASH MEMORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The instructions to do a power-on-self-test
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The instructions of the operating system
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The instructions to load the operating system
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The instructions not needed at present by the CPU, currently in the virtual memory
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Detailed explanation-1: -RAM is used to hold data and instructions that are currently in use. In a modern PC, RAM is used to hold the operating system and any open documents and programs that are running. RAM can be read from and written to. The contents of RAM can be changed at any time by overwriting it with other data and instructions.
Detailed explanation-2: -An address register, which keeps track of where a given instruction or piece of data is stored in memory. Each storage location in memory is identified by an address, just as each house on a street has an address. A storage register, which temporarily holds data taken from or about to be sent to memory.
Detailed explanation-3: -RAM stores the data that helps your computer perform its most important tasks, such as loading apps, browsing websites, and editing documents. RAM lets you open apps and files quickly, because your computer can easily find the data in its short-term memory.
Detailed explanation-4: -B. Instructions (programs) for the CPU are also stored in the memory just like data. One of the most important feature of a stored program computer is being able to store the programs as well as the data together in the memory. Today’s computers are all stored program computers.