WHAT ARE BACKING STORAGE DEVICES?
Backing storage devices are computer hardware devices that are
designed to store any type of data/memory, the most common type is a hard drive
which every computer has and it stores the operating system, applications and
files and folders. There are other types of storage devices such as USB flash
drives and SDD cards which are more portable and just use a different way to
store your data.
Backing storage devices are computer hardware devices that are
designed to store any type of data/memory, the most common type is a hard drive
which every computer has and it stores the operating system, applications and
files and folders. There are other types of storage devices such as USB flash
drives and SDD cards which are more portable and just use a different way to
store your data.
Hard disks: Solid state Vs. Magnetic
http://simple.wikipedia.org/wiki/Solid-state_drive
http://simple.wikipedia.org/wiki/Floppy_disk
Function
SSD’s and Magnetic hard disks are both data storage devices used in a computer. SSD uses flash memory to store data, they have a much faster read/write speed than magnetic disk drives and have no moving parts. The other disk drive is magnetic also known as a floppy disk drive and this is used for moving information between computers and laptops or other devices
Factors that affect performance
The factors that affect the disk drives are related to the mechanical nature of the rotating disks, which is composed of a few moving heads and independently measurable elements that are added together to get a single value when evaluating the performance.
It is affected by defragmentation which is when the disk drive takes all different files on the disk and brings them together as the information is splattered out into available space on the hard drive.
http://simple.wikipedia.org/wiki/Solid-state_drive
http://simple.wikipedia.org/wiki/Floppy_disk
Function
SSD’s and Magnetic hard disks are both data storage devices used in a computer. SSD uses flash memory to store data, they have a much faster read/write speed than magnetic disk drives and have no moving parts. The other disk drive is magnetic also known as a floppy disk drive and this is used for moving information between computers and laptops or other devices
Factors that affect performance
The factors that affect the disk drives are related to the mechanical nature of the rotating disks, which is composed of a few moving heads and independently measurable elements that are added together to get a single value when evaluating the performance.
It is affected by defragmentation which is when the disk drive takes all different files on the disk and brings them together as the information is splattered out into available space on the hard drive.
Flash memory card
http://wiki.answers.com/Q/What_is_the_function_of_flash_memory_card
http://kb.sandisk.com/app/answers/detail/a_id/7491/~/sandisk-products-transfer-speed
Function
A flash memory card is a small storage card used to store data such as multimedia (pictures, audio, music etc.) it is for use on small portable devices such as an mp3 player or a phone.
Factors that affect performance
There are three main lines for consumer products standard, ultra and extreme. And they all have different storage levels, the standard line are the entry level storage cards whilst the ultra is a step up from entry level disks and the extreme lines are used for professional products and for those who demand the highest performance from their product. The transfer speed can be greatly affected by the host device, if you place a larger memory card in a low memory storage device it would not improve the performance, other factors that can affect the performance of a flash memory card is the PC environment, file size and type and also transfer type of data.
http://wiki.answers.com/Q/What_is_the_function_of_flash_memory_card
http://kb.sandisk.com/app/answers/detail/a_id/7491/~/sandisk-products-transfer-speed
Function
A flash memory card is a small storage card used to store data such as multimedia (pictures, audio, music etc.) it is for use on small portable devices such as an mp3 player or a phone.
Factors that affect performance
There are three main lines for consumer products standard, ultra and extreme. And they all have different storage levels, the standard line are the entry level storage cards whilst the ultra is a step up from entry level disks and the extreme lines are used for professional products and for those who demand the highest performance from their product. The transfer speed can be greatly affected by the host device, if you place a larger memory card in a low memory storage device it would not improve the performance, other factors that can affect the performance of a flash memory card is the PC environment, file size and type and also transfer type of data.
Floppy disk and zip disk (Old school)
http://www.bbc.co.uk/schools/gcsebitesize/ict/hardware/1datastoragerev4.shtml
Function
The floppy and zip disks were only capable of holding very small amounts of data. Floppy disks were popular in the 1970s and were used to transfer small files of data from one machine to another, backup important small files stored on the hard disk and store restricted files that you didn’t want other users of your computer to see. Zip disks were large floppy disks and could store up to 250MB of data, in order to read them a computer would need a zip drive – their use was similar to that of floppy disks. Zip and floppy disks have now been replaced by memory sticks and DVD-ROMS.
Factors that affect performance
A poorly designed operating system may affect the performance of a floppy disk, it may cause it to temporarily stop responding when a floppy disk is being written to but that case is very rare these days as we use larger storage devices
http://www.bbc.co.uk/schools/gcsebitesize/ict/hardware/1datastoragerev4.shtml
Function
The floppy and zip disks were only capable of holding very small amounts of data. Floppy disks were popular in the 1970s and were used to transfer small files of data from one machine to another, backup important small files stored on the hard disk and store restricted files that you didn’t want other users of your computer to see. Zip disks were large floppy disks and could store up to 250MB of data, in order to read them a computer would need a zip drive – their use was similar to that of floppy disks. Zip and floppy disks have now been replaced by memory sticks and DVD-ROMS.
Factors that affect performance
A poorly designed operating system may affect the performance of a floppy disk, it may cause it to temporarily stop responding when a floppy disk is being written to but that case is very rare these days as we use larger storage devices
USB Flash drive http://www.ehow.com/facts_4882290_what-function-usb-flash-drive.html
http://blog.datalight.com/factors-affecting-flash-memory-performance
Function
A USB flash drive is used to transfer files, documents, photos and more from a desktop to a flash drive and vice versa
Factors that affect performance
A key factor that can reduce the effective performance of a USB involves the shared bus usage of your system, it depends on the speed and availability of the USB drive that connects the flash to the system for example If your USB shares a bus with parts that operate at slower clock speeds the timing of the USB drive will be affected and run at the same speed or even slower than the shared bus topology.
http://blog.datalight.com/factors-affecting-flash-memory-performance
Function
A USB flash drive is used to transfer files, documents, photos and more from a desktop to a flash drive and vice versa
Factors that affect performance
A key factor that can reduce the effective performance of a USB involves the shared bus usage of your system, it depends on the speed and availability of the USB drive that connects the flash to the system for example If your USB shares a bus with parts that operate at slower clock speeds the timing of the USB drive will be affected and run at the same speed or even slower than the shared bus topology.
PRIMARY MEMORY http://www.techopedia.com/definition/1104/primary-memory
Primary memory is memory stored in a computer that the processor accesses first or directly. It grants access to running applications and services that are temporarily stored in a specific memory location; it is
also known as primary storage or main memory. As soon as the computer starts the
primary memory stores all running applications including the OS. An application
that is opened in primary memory interacts with the system processor to perform
all application specific tasks.
Factors that affect performance
If there is insufficient free memory some memory must be made
free to be able to use, speed of the data transfer is affected by the design of
the system and the speed and quality of RAM installed. Primary memory is not RAM
but comes from the RAM
also known as primary storage or main memory. As soon as the computer starts the
primary memory stores all running applications including the OS. An application
that is opened in primary memory interacts with the system processor to perform
all application specific tasks.
Factors that affect performance
If there is insufficient free memory some memory must be made
free to be able to use, speed of the data transfer is affected by the design of
the system and the speed and quality of RAM installed. Primary memory is not RAM
but comes from the RAM
Secondary memory http://www.webopedia.com/TERM/S/secondary_memory.html
Secondary memory is computer data storage. It cannot be
processed directly by the CPU but must first be copied into primary storage also
known as RAM, secondary storage devices include magnetic disk drives and floppy
disks, CDs and CD ROMS and magnetic tapes which were the first forms of
secondary memory.
Factors that affect performance
Memory capacity can affect data storage, as well as reliability
and convenience of the disk drive and computer system, compatibility can also
affect the speed of the performance.
processed directly by the CPU but must first be copied into primary storage also
known as RAM, secondary storage devices include magnetic disk drives and floppy
disks, CDs and CD ROMS and magnetic tapes which were the first forms of
secondary memory.
Factors that affect performance
Memory capacity can affect data storage, as well as reliability
and convenience of the disk drive and computer system, compatibility can also
affect the speed of the performance.
Tertiary memory http://it.toolbox.com/wiki/index.php/Tertiary_Storage
Tertiary storage is usually the slowest storage device operating
in a computer system; it is used to archive data that is not accessed
frequently. A computer can access tertiary storage without being told to do so
like if a hard disk fails or if the computer encounters a virus which can wipe
out data it backs-up on the tertiary storage device.
Factors that affect performance
Capacity of tertiary storage, electrical power, levels of cache, main
memory CPU can access, tertiary storage is often coped to secondary storage
before use
in a computer system; it is used to archive data that is not accessed
frequently. A computer can access tertiary storage without being told to do so
like if a hard disk fails or if the computer encounters a virus which can wipe
out data it backs-up on the tertiary storage device.
Factors that affect performance
Capacity of tertiary storage, electrical power, levels of cache, main
memory CPU can access, tertiary storage is often coped to secondary storage
before use