0
Is access time of memory is slow compared with the access time of storage?
Wiki User
∙ 13y ago
access times from memory is 200,000 times faster than access times from storage devices due to the mechanical movement involved.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoYES
Add your answer:
Earn +20 pts
What is the three major distinctions between storage and memory?
1. There is more room in the storage than in the memory. 2. contents are retained in storage when you turn the computer off, whereas the programs or data you put into memory disappear when you shut down the computer. 3. storage is very slow compared to memory, but is more cheaper than memory
What is the difference between non-volatile memory and storage is that the memory is__________ and storage is_________.A. temporary, permanentB. permanent, temporaryC. slow, fastD. none of the above?
A
What is secondary memory device?
Secondary memory, also called auxiliary memory or mass storage, consists of devices not directly accessible by the CPU. Hard drives, floppy disks, tapes, and optical disks are widely used for secondary storage. The input and output of these devices is much slower than for the semiconductor devices that provide the computer's primary memory. Although access times (i.e., the time to read or write information) are slow as compared to that of primary memory, secondary memory devices have important features that are unmatched by primary memory. First, most secondary storage devices are capable of containing much more information than is feasible for primary memory (hence the use of the term "mass storage" as a synonym for secondary memory). A second, and essential, feature of secondary memory is that it is non-volatile. This means that data is stored with or without electrical power being supplied to the device, as opposed to RAM, which can retain its data only so long as electrical power is present.
Secondary storage and main memory are both types of memory in a computer. What are some differences between them And why does a computer need both of them to work Give an example of each?
Secondary storage and main memory are both types of memory used in a computer, but they differ in terms of their speed, capacity, cost, and volatility. Main memory, also known as primary memory or RAM (Random Access Memory), is a fast, volatile, and temporary form of memory that the CPU (Central Processing Unit) uses to store data and instructions that it is currently processing. Main memory is directly accessible by the CPU and has faster read/write speeds compared to secondary storage. However, main memory is volatile, which means that it loses its contents when the power is turned off or in case of a system failure. An example of main memory is DDR4 RAM. Secondary storage, also known as external memory or non-volatile memory, is a slower, larger, and more permanent form of memory that the computer uses to store data and programs that are not currently in use. Secondary storage is not directly accessible by the CPU and has slower read/write speeds compared to main memory. However, secondary storage is non-volatile, which means that it retains its contents even when the power is turned off. An example of secondary storage is a hard disk drive (HDD) or solid-state drive (SSD). A computer needs both main memory and secondary storage to work efficiently. Main memory provides fast access to data and instructions that the CPU is currently processing, while secondary storage provides a larger and more permanent storage space for data and programs that are not currently in use. Without main memory, the CPU would have to constantly read and write from secondary storage, which would significantly slow down the system's performance. Without secondary storage, the computer would not be able to store large amounts of data and programs permanently. An example of main memory usage is when a user opens a word processing program, and the program's instructions and data are loaded into main memory for processing. An example of secondary storage usage is when a user saves a document to their hard disk drive, where it is stored permanently until the user deletes it. Regenerate response
What are the two disadvantages of a floppy disc?
They have less storage, access is slow (84ms) and it's not very durable.
What are types of secondary memory?
two
Do hard disks provide fast or slow access to data compared to a DVD?
Fast Answer by Knot Year 12.
What is cache memory ram?
Cache Memory is small fast memory that stores instructions and data frequently used in processing such that when is required, Processor can quickly fetch data rather than reading it from slow storage media.
What are the advantages and disadvantages of the magnetic tape?
Advantages: One of the cheapest forms of data storage. Disadvantage: low density (bulky), not random access (slow).
Compare the increase in size and increase in speed in the memory system hierarchy?
The memory system hierarchy refers to the different levels of memory in a computer system, ranging from the smallest and fastest memory to the largest and slowest memory. As we move down the hierarchy, we generally see an increase in storage capacity and a decrease in speed. However, the exact relationship between size and speed depends on the specific technologies used in each level of the hierarchy. At the top of the hierarchy is the CPU cache, which is the smallest and fastest type of memory. The cache is used to store frequently used data and instructions that the CPU can access quickly. The size of the cache is typically measured in kilobytes or megabytes, and it is designed to provide very fast access times, usually measured in nanoseconds. Moving down the hierarchy, we find main memory or RAM (Random Access Memory), which is larger than the cache and slower. RAM is used to store data and instructions that the CPU needs to access frequently but not as frequently as cache data. RAM is typically measured in gigabytes, and access times are typically measured in nanoseconds. Below RAM, we find secondary storage, which includes hard drives, solid-state drives (SSDs), and other types of non-volatile storage. These storage devices are larger than RAM but much slower. They are typically measured in terabytes, and access times are measured in milliseconds. Finally, we have tertiary storage, which includes magnetic tape, optical storage, and other types of very large but very slow storage devices. These devices are typically used for backup and archival purposes, and they have access times measured in seconds or even minutes. In general, as we move down the hierarchy, we see an increase in storage capacity and a decrease in speed. However, the rate of increase in size and decrease in speed varies depending on the specific technologies used in each level of the hierarchy.
Difference between direct and sequential access?
RAM or Random Access Memory is used for fast computer memory. The word "Random" is a bit of a misnomer, as there is nothing random about access to this memory. What it actually means is that you can select an address at "random", that is, any address within the capability of the memory, and read or write data to/from that address just as fast as you could read or write data to any other address. In other words, data stored anywhere in the memory can be accessed quickly. Serial memory is different in that access time depends upon where on the medium the data is stored. Examples are magnetic tape, optical disk, magnetic disk. "arbitary access" is not a term used in electronics that I can find. I think it is just another term for "random access".
Distinguish between primary memory and auxiliary memory?
the main memory is the central storage unit of the computer system. it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU. main memory includes RAM and ROMs. devices that provide backup storage are known as auxillary memory. auxillary memory are relatively slow in comparision to the main memory. auxillary memory includes flash memory,magntic disks and floppys. main memory is located inside the CPU but auxillary memory is located out the CPU. the main memory is the central storage unit of the computer system. it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU. main memory includes RAM and ROMs. devices that provide backup storage are known as auxillary memory. auxillary memory are relatively slow in comparision to the main memory. auxillary memory includes flash memory,magntic disks and floppys. main memory is located inside the CPU but auxillary memory is located out the CPU.
