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The most important advantage of disk storage over tape storage?
disk storage-> direct data access storage tape storage -> serial data access storage
Name three serial access secondary storage device?
Random Access memory
Serial access secondary storage device?
name one access secondary device?
Difference between direct and serial access?
Direct access refers to the ability to retrieve data from any point in a storage device directly, without having to sequentially access preceding data. This is common in random access memory (RAM) and solid-state drives (SSDs). Serial access, on the other hand, requires data to be accessed sequentially in the order it was stored, such as in magnetic tape drives. This difference impacts the speed and efficiency of data retrieval in storage systems.
How does the access time of storage compare with the access time of memory?
access times from memory is 200,000 times faster than access times from storage devices due to the mechanical movement involved.
What is the smallest storage access unit on an ide hard drive?
The smallest storage access unit on an IDE hard drive is a sector.
Serial and direct access?
direct access allows you to access the needed record directly with serial access u have to go through all the others before arriving to the desired one
Is access time of memory is slow compared with the access time of storage?
access times from memory is 200,000 times faster than access times from storage devices due to the mechanical movement involved.
What is the disadvantage of serial access?
None
What is DASD?
Direct access storage device
Are optical disk disks are random access storage devices?
floppy disks are read/write storage devices, they are a backing store, a non-volatile long term storage which will not lose data when power is lost.Random access storage is the original term for RAM, the random access memory term was used a a marketing term and has stuck since.Another AnswerYES - floppy disk are Random Access storage devices.
What are tapes in PC?
Magnetic tapes can be used for data storage with serial access and limited (time-consuming) random access. Historically, such systems were used as inexpensive data storage devices on some personal computers, often using inexpensive audio casette tapes as a physical medium. In professional systems, tapes are used for data backup systems. The backup storage tape uses different tapes and tape drives than those so-called "home computers" of the 1980s used, but they share the same fundamental characteristics: primarily serial access with much slower random access (due to the fact that tape must be unwound and rewound in order to reach a specific location), providing a comparatively large and inexpensive storage capacity. Although tape backups are probably coming out of fashion, they are still in use today, for example for nightly server backups.
