Which type of memory is most expensive?

Texas Memory Systems has developed a solid state disk system which performs 5 million I/Os per second. It costs $4.4m for 100 terabytes of storage.

Why register memory is important in a computer?

A register temporarily holds frequently used data, instructions, and memory address that are to be used by CPU. They hold instructions that are currently processed by the CPU. All data is required to pass through registers before it can be processed. So, they are used by CPU to process the data entered by the users.

Why are registers faster than memory?

Accessing a register’s value will typically require very few clock cycles (likely just 1), as soon as memory is accessed, things get more complex and cache controllers / memory buses get involved and the operation is going to take considerably more time. Several factors lead to registers being faster than cache.

Why primary memory is more expensive than secondary memory?

It link CPU and other computer parts like secondary storage, input and output devices. They have less storage capacity compared to secondary memory storage. Some are resistant to corruption,water and heat. This makes primary storage devices more costly.

Which memory is cheaper in terms of the cost per bit of storage?

Flash and hard disk drives are much cheaper and offer plenty of storage capacity, but their latency is unacceptable for direct use as main memory. DRAM offers a nice compromise between the two with fast access times at reasonable cost and high capacity.

Why Computer memory is expensive?

Judging the above question, the price of RAM is expensive because: Price depends upon country custom charge and taxation. Due to low production of RAM and high demand from consumers. Low production may cause due to country dispute, disaster or bankrupt of RAM production company.

Which is expensive memory of computer?

Cache memory
Cache memory is fast and expensive. Traditionally, it is categorized as “levels” that describe its closeness and accessibility to the microprocessor. There are three general cache levels: L1 cache, or primary cache, is extremely fast but relatively small, and is usually embedded in the processor chip as CPU cache.

Why registers are needed?

Registers are a type of computer memory used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU. The computer needs processor registers for manipulating data and a register for holding a memory address.

What is main memory How does it differ from registers?

The main difference between register and main memory is that a register is a small and fast storage inside the CPU that holds data temporarily while the main memory is a storage component in the computer that stores data and programs currently used by the CPU. A register is a high-speed memory location in the CPU.