which type of memory can cpu access directly ??
Answers
Answer:
The correct answer is Register Memory. Registers are small memory locations that are located directly on the CPU chip itself. The data stored within them is directly available to the CPU and can be accessed extremely quickly.
The type of memory that a CPU can access directly is known as "Primary Memory" or "Main Memory" or "Random Access Memory (RAM)".
Primary memory is a type of volatile memory that is used to temporarily store data and program instructions that are currently being executed by the CPU.Primary memory is the fastest and most expensive memory in the hierarchy.
Primary memory is divided into two categories: Static Random Access Memory (SRAM) and Dynamic Random Access Memory (DRAM). SRAM is a type of memory that retains its data as long as the power supply is connected to it. It is faster and more expensive than DRAM, but has a lower capacity. DRAM, on the other hand, is a type of memory that stores data in capacitors that need to be refreshed periodically. It is cheaper and has a higher capacity than SRAM, but is slower.
Secondary memory can be divided into two categories: magnetic storage and solid-state storage. Magnetic storage includes hard disk drives (HDDs) and magnetic tape drives. HDDs are the most commonly used storage devices in computers. They store data on spinning disks that are read by a read/write head. Magnetic tape drives are used for long-term archival storage of large amounts of data. Solid-state storage includes solid-state drives (SSDs) and USB flash drives. SSDs are faster and more expensive than HDDs, but have a smaller capacity. USB flash drives are portable and can be used to store data and programs for use on multiple computers.
The memory hierarchy is important because it allows the computer to access data and programs quickly and efficiently. The CPU can access primary memory much faster than secondary memory, which allows it to execute programs more quickly.
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