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3 Types of Data Storage Media: †A Guide to Selecting Media for Storing & Backing up Computer Data by Mandar

Data, or information stored on your computer, can either be held on fixed disk drives inside the computer or on removable media such as CD's that can be inserted and removed. Removable media can be used to transfer files between computers or to backup the data already existing on fixed disk drives. There are three types of removable media: Magnetic, Optical and Flash.

Magnetic Storage

Magnetic Storage: Hard disks, floppy disks and digital audiotape are examples of Magnetic storage. They operate through a read/write head, which creates and reads magnetic impressions on the disk.

The downsideâ€

†The magnetic impression only lasts for around five years
†The capacity of most removable magnetic disks is too low for many types of files

Optical storage

Optical Storage holds information in digital form that is written and read by a laser. All CD and DVD devices are examples of this.

The upsideâ€

†Increased capacity: one Optical disc can store the same amount of data as over 500 diskettes
†Durability: they last up to seven times as long as Magnetic forms of storage

Flash Memory (Solid-State Removable Storage)

Solid-state memory (or Flash memory) is a high-performance plug-and-play storage device that contains no moving parts. It is found in digital cameras, video game consoles and digital audio players. You can use it in the form of USB Flash Drives to transfer or backup data. Flash memory is small, light and fast.

Backup

Backup is the copying of files onto portable media so that if your computer crashes, data won’t be lost in oblivion. Backup is usually routine in large businesses but is often neglected by individual users. Some suggest backing up data files and duplicating your hard drive weekly. It takes around 45 minutes to backup a 500-megabyte hard disk.

There are two options- Local or Internet backup. The following is a list of Local backup options. Most of these also double as devices used to transfer data between computers.
†Diskettes
†Zip Drives
†CD's
†DVD's
†Flash Drive

Internet Backup

Another backup option is sending your files to an Internet site for safekeeping. If your computer crashes you can simply download them from the site. Here are a few examples of such sites:

Backup Defender- www.backupdefender.co.nz
My Backup- www.mybackup.co.nz

N.B. The author does not recommend or endorse any of the above service providers.

Diskettes and Zip Drives

Diskette

A Diskette is a 3.5-inch removable magnetic disk. The older version, the floppy disk, is 5.25 inches square and flexible. Copying to a diskette is quick and economical.

Ideal forâ€

†Those who use their PC for personal finance - the diskette enables you to retrieve checkbook balances etc.
†Projects that need to be continuously backed up such as a film script, as it is a cheap alternative.

Not so good forâ€

†Some newer computer and laptop models that do not have a diskette or floppy drive installed.
†Large amounts of data as diskettes don’t have a great storage capacity

Zip Drives

A Zip drive is a small, square shaped magnetic disk that is ideal for backing up your PC. The 100-megabyte size holds the equivalent of 70 floppy diskettes. They also come in a 250-megabyte size

Ideal forâ€

†Duplicating your entire disc drive
†Archiving
†Storing graphic images or other large files
†Transferring large files
†Keeping certain data separate from files on your hard disk

The downsideâ€

†They seem to be a fleeting technology - most computers do not have a Zip Disc drive installed and opinion varies on how long they will be around for.

Compact Disks

There are different standards of CD's that have different capabilities. Just to confuse us they are recognized by seemingly similar acronyms; CD-R, CD-RW, CD+RW, DDCD and E-CD.

CD-R

CD-R (Compact Disc - Recordable) is a CD that can be recorded to only once. It usually holds 74 minutes of audio or 650 MB of data, although newer versions hold up to 80 minutes of audio (700 MB of data). If your PC has CD burning software and a compatible CD-R or CD-RW drive, the CD-R can be used in the same way as a diskette. However unlike a diskette it cannot be deleted or overwritten. Look out for CD-Rs that have an additional protective layer which make them less susceptible to damage caused through scratching.
Ideal forâ€

†Making music CD's
†Storing photos
†Storing permanent data

Not so good forâ€

†Transferring files as they can only be used once

CD-RW/CD+RW

A CD-RW (Compact Disc Rewritable) and CD+RW can be recorded onto as many times as desired. Data can be overwritten and erased. Other than this, the CD-RW is identical to the CD-R. If it wasn't for their finite durability CD-RW’s and CD+RW’s could be reused endlessly.

Ideal forâ€

†Transferring files
†Holding temporary data

Not so good forâ€

†Holding important permanent files-in case they are accidentally deleted

Double Density CD (DDCD)
This disc has a much greater storage capacity than an average CD-R or CD-RW.

Ideal forâ€
†Backing up
†Storing archival data

Enhanced CD
Enhanced CD (E-CD) is an audio CD with CD-ROM data added. CD-ROM data is added in the space not taken by audio. Recording artists can use this to include videos, lyrics, interviews or promo material. The E-CD can be played on a CD player but to view additional material you need access to a multimedia-capable device, such as a CD-i player, DVD-ROM, or CD-ROM drive.

Bridge Disks
A CD-Bridge disc holds extra information on a CD-ROM XA track. The disc can be played on either a CD-i player attached to a television, or a CD-ROM XA drive attached to a computer. Software such as Photo or a Karaoke CD player can provide lots of fun with the Bridge Disk.

DVD (Digital Versatile Disk): More than movies

Although DVD's have become more associated with video, they can also hold audio and computer data; hence their name Digital Versatile Disk. Like the CD, a DVD is a 120-mm by 1.2mm thick disk. However the DVD has more tracks than a CD so holds far more data. CD's have an unvarying storage capacity of 750MB, whereas DVD's store up to 17GB.

A range of acronyms is also used to distinguish between the different types and capabilities of DVD's available. These include DVD-ROM, DVD-R, DVD-RW, DVD+RW and DVD-Audio.
DVD-ROM

DVD-ROM (Digital Versatile Disc - Read Only Memory) is similar to a movie DVD, but is designed for computers. The DVD-ROM stores data in the same way that the CD-ROM does and is used in the DVD-ROM drive of your PC.

The upsideâ€

†Larger storage space †hold more data than a CD
†Can be filled with nearly everything; video, music or computer specific data
†A base speed of 1.32 megabytes/sec

The downsideâ€

†Many older computers do not have a DVD-Rom drive installed
†Can be recorded on only once

DVD-Audio

DVD-Audio (DVD-A) is designed for audio data and high-quality music. Its storage capacity is seven times that of a CD and provides at least twice the sound quality. Like the Enhanced CD, DVD-A can contain other data, providing the listener with extra information such as lyrics or images. DVD-A is predicted by many to replace the standard audio CD in the music industry.

DVD-R

Like the CD-R, the DVD-R (Digital Versatile Disc-Recordable) can be recorded on once.

The upsideâ€

†A DVD-R can contain an assortment of information; video, text, audio and computer data

†A DVD-R can be played on your normal DVD video player but remember, if you have additional data not of the same format e.g. video and audio together, you will need a DVD-ROM or Multimedia player of some kind

†A DVD-R is read at the same speed as commercially made DVD's

DVD-RW and DVD+RW
Similar to the CD-RW, a DVD-RW or DVD+RW (Digital Versatile Disc †Rewritable) can be recorded on, rewritten and erased multiple times. Other than this they are identical to the DVD-R.
DVD minus and plus are just different versions with the same functionality.

The Future of CD/DVD Storage

The majority of the technology industry predicts that soon DVD’s, with their larger storage capacity and faster access time, will replace CD’s. DVD-ROM drives are likely to be sold with new computer systems in the way that CD-ROM drives once were. However we are always on the cusp of newer technologies, such as the HD-ROM.

HD-ROM (High Density-Read Only Memory)

HD-ROM uses a more precise particle beam to write data. This enables information to be written on more durable materials such as metal so storage is virtually permanent. HD-ROM has hundreds of times the storage capacity of the CD-ROM.

Flash Drives

A Flash drive is a small portable memory stick that holds anywhere from 1Mb to 1GB of data. It is surprisingly lightweight and is often worn around the neck or carried as a funky key chain. They are compatible with any PC that has USB port and with Mac OS 9 and OS X, Windows 2000 and XP or Linux 2.4.17.

The upsideâ€

†Durable - more so than CD's or DVD's
†No need for batteries or a separate power source
†Convenient - your computer should recognize the additional drive as soon as you insert it into the USB port
†Ideal for backup
†Larger storage capacity then many other portable devices
†More portable than ZIP drives, CD's and Diskettes
†Quick transfer rate (approx. 1Mb/sec)
†Edit, rewrite, delete as many times as desired
†Help desk personnel can use Flash Drives as a portable toolkit that includes system updates and recovery tools.

The downsideâ€

†More expensive than other portable devices
†Viruses - The portability and compatibility of the Flash Drive increases the chance of spreading viruses. In many cases viruses carried by a Flash Drive will not be detected as most antivirus software is reactive and only recognizes known viruses
†Theft - a Flash Drive can make it easier for data to be stolen from an unlocked PC
†Little Security - the size and weight of the Flash drive makes it very easy to misplace. Most have little or no security features and data is accessed easily. Some Flash Drives do have built in security; either a password or in some cases a finger print system - but this comes at a price.

Did you find this article useful? For more useful tips and hints, points to ponder and keep in mind, techniques, and insights pertaining to Internet Business, do please browse for more information at our websites.
http://www.allhottips.com
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Article Source: http://www.earticlesonline.com/Article/3-Types-of-Data-Storage-Media------A-Guide-to-Selecting-Media-for-Storing---Backing-up-Computer-Data/636251

FEATURED PRODUCTS:

A great place to shop for Track Fixed Chain products is Amazon.

Check out these fine shops that offer Track Fixed Chain products:

Angled Fixed Position Rod Holder - Track System $50.94 Angled Fixed Position Rod Holder - Track System NEW - Innovative Trolling System Puts You In ControlNo matter how you fish - or what your fish for - you can customize our new trolling system to fit yout style. Our new rod holders feature a patented pistol grip design for one-handed adjustment of the rod angle and a ratcheting system for easy rod removal. Made of High-strength aluminum to withstand the punishment of big water use and can be changed out in a snap with our unique track system.Angled Rod HolderFixedAngled at 60°, with 90° of side-to-side rotation adjustment, this 10" rod holder makes a simple, functional addition to our track system. Includes a UV-resistant end cap to protect rod and reel

Soma Track Kog 17t-23t $24.99 Soma Track Kog 17t-23t. Larger sizes! Quite possibly the finest fixed cog ever created.

Soma Track Kog 12t-16t $24.99 Soma Track Kog 12t-16t. Larger sizes! Quite possibly the finest fixed cog ever created.

Key Chain $2.95 River Road Key Chain Keep track of your keys with the River Road Key Chain.

Chain - Reconstruct * $25.62 Track listing not available.

Royce Lighting RTRK5216-4-101 Hayden 4 Light Fixed Track Architectural Bronze $82.85 Collection: Hayden. Finish: Architectural Bronze. Width: 40''. Height: 11-1/2''. Number of Light: 4. Wattage: 50. Bulb type: GU10 xenon T5. UL Listed for Dry Locations. CUL Listed for Dry Locations. Extends: to 7''. Supplied with 8'' of wire. Style: Contemporary Lighting. Color: Bronze Track Lighting. Glass Type: Satin White. Light Bulb: 4 x 50Watt MR16 GU10 120v Halogen.

Vuelta Zerolite Track Wheelset $99.99 Vuelta Zerolite Track Wheelset. These track wheels from Vuelta are fast, tough and ready for anything from crowded city streets to open sprints for the finish line. Handbuilt 700c Alloy Track Wheelset. 30mm aluminum alloy medium-V rims with CNC-machined sidewalls for superior braking power. 2.0mm stainless steel spokes: 32 3-cross front and rear for optimum acceleration and strength. . Includes: 16t fixed gear cog, urethane-coated nylon rim strips. Wt.: 2151g/pr.

Colony 5 - Fixed $37.15 Disc 0:No track list available

Aluminum Fixed Base Downrigger Pedestal - 4 $82.94 Aluminum Fixed Base Downrigger Pedestal - 4" NEW - Innovative Trolling System Puts You In ControlAluminum Fixed Base Downrigger PedestalThis sturdy fixed base works with either surface or track mounting. The top plate is pre-drilled and tapped to allow mounting of a Cannon swivel base and downrigger, as well as other swivel base and downrigger brands.

Aluminum Fixed Base Downrigger Pedestal - 6 $101.94 Aluminum Fixed Base Downrigger Pedestal - 6" NEW - Innovative Trolling System Puts You In ControlAluminum Fixed Base Downrigger PedestalThis sturdy fixed base works with either surface or track mounting. The top plate is pre-drilled and tapped to allow mounting of a Cannon swivel base and downrigger, as well as other swivel base and downrigger brands.

Silverstein - When Broken Is Easily Fixed $25.69 Track Listing: Smashed Into Pieces When Broken Is Easily Fixed Red Light Pledge Giving Up November Last Days Of Summer Bleeds No More Hear Me Out Weak And The Wounded, The Wish I Could Forget You

Various Artists - Trance Fixed [Clean] $35.06 Disc 0:No track list available

Vuelta Zero-Lite Track Wheelset $159.99 Vuelta Zero-Lite Track Wheelset. How about showing that old fixie or single-speed some love by replacing those worn-out wheels? This quality-made track wheelset from Vuelta features sturdy CNC sidewalls, alloy cartridge bearings, bolt-on hubs front and rear and stainless steel spokes. Rear wheel features flip-flop hub with 16-tooth fixed cog. And check it out -- they're available in three colors.

50cm 2010 Vilano Single Speed / Fixed Gear Fixie Track Bicycle Gloss Black $249 The Vilano single is a great bike at an amazing price. The bike comes ready to ride as a single speed, you can flip the rear wheel for fixed gear. has a flip-flop hub which allows for Freewheel or Fixed Gear configuration. Full Specs: Frame: Chromoly Steel Fork: 700C Steel 1 1/8 Threadless Crankset: Tec9 Forged Alloy w/ 46T Chainring Cassette: 16T Freewheel & 16T Fixed Hubs: Flip Flop Rims: 700c Double walled w/ CNC machined sides Tires: 700c x 25c Brakes: Promax Front & Rear Handlebar: Alloy Saddle: Vader Seatpost: Tec9 Alloy Stem: Tec9 Alloy Pedals: Toe Clip w/ Strap Type: Road Bikes Size: 50cm Color: Black Frame Material: Aluminum

Lap Track Timer $94.29 The FINIS Lap Track does exactly that, acts as an underwater lap counter and timer - a swimmer's own personal pace clock! The clear 6" by 6" display allows a swimmer to keep track of split times, calories burned, and of course, number of laps, all while continuously swimming.The Lap Track fits on most all pool decks as there are various ways of which the unit can be mounted. Included with the packaging is all the necessary set-up equipment: 2 pairs of suction cups (for different sizes tiles), an attachable platform with extenders for use in pools that aren't tiled, and a carrying bag that doubles as a water weight to stabilize the base of the extenders. The Lap Track comes ready-to-use with 2 AAA batteries and no need for additional operating equipment purchases.Lap Track Function Overview:The daily Clock portion of the unit has every basic function one can ask for in a timing device, including but not limited to: display of the day, date, and time (in 2 differing time zones), as well as up to three daily alarms. The Lap Timer function is packed full of information - the number of laps completed, total time elapsed, as well as the completion time of the most recent lap. When using the Lap Counter function, the swimmer can either set a fixed number of desired laps or set the laps to zero and count up (50 laps of which can be stored). If the Lap Track is programmed to count down from the desired figure, the timer will stop when the pre-set laps are completed. Also the Lap Chrono function has the ability to record lap splits and produce calories burned estimates. As one swims, the unit will count time, distance, and compare lap times for up to 50 laps - a "lap" being two lengths of the pool (down and then back to the same side of the pool where the Lap Track is located). The user personalizes the unit to achieve this date by simply entering their weight and total lap distance... the Lap Track does the rest! Features & Benefits:Completely Waterproof Design: Can be completely submerged for quick visibility and easy counting. Multi-Programmable Functions: Allows you to count laps, track splits, go for distance, or simply swim until the timer is up. Each function provides a very personalized workout. Calorie and Distance Tracker: Simply enter your weight and pool length and the unit will record the total distance you have swum and how many estimated calories you burned along the way! Tap Face of Unit to Track Data: Press the largest button possible.

Baltimore Ravens Spinner Key Chain $5.95 Keep track of your keys with this novel spinner key chain! NFL logo on back.

Off the Chain T-Shirt $22.99 Speed and Strength Off the Chain T-Shirt On or off the track, these T's will fit your style. The Speed and Strength Off the Chain T-Shirt will telll them what you're made of. 100% lightweight cotton Flat screened logos

Eat Sleep Jump - Track and Field - Military Dog Tag Chain Keychain $9.99 This unique product can be used anywhere you want to make a statement! Wear it around your neck, use it as a keychain or even as a cool luggage identifier. The item listed is made of stainless steel with the 3D urethane encased design as shown. The dog tag is 2" x 1.1" in size and can be engraved on the backside (sorry, we do not offer an engraving service). This item also includes a 24 inch chain which can be easily shortened if desired.

Transom Mount Fixed Motor Bracket Alum $64.94 Transom Mount Fixed Motor Bracket Alum Designed to attach directly to a vertical transom. Made of strong, lightweight marine grade aluminum, powder coated in white for maximum corrosion resistance. Reinforced polypropylene mounting board is 1- 1/2 thick with all stainless steel fasteners. Does not include mounting fasteners. Note: The use of a safety chain is recommended on all motor brackets.

Virginia Cavaliers Blue W/Orange CAVS Oval Mirror Key Chain $5.95 Keep track of your keys with this stylish mirror key chain from Stockdale!

Georgia Tech Yellow Jackets Silver Tone Football Key Chain $8.95 Keep track of your keys with this officially licensed key chain!

Tulsa Golden Hurricane Silver Tone Football Key Chain $8.95 Keep track of your keys with this officially licensed key chain!

Stainless Steel Track Style Bracelet $29.99 Broaden your style withi this gallant track style stainless steel bracelet. Length: 8.5" Width: 15mm Brand: Tioneer Size/Dimensions: 8.5" Design: Novelty Style: Chain & link Gift Box: Gift Box Material: Stainless Steel Gender: Male Age: Adult

Cannon Aluminum Fixed Base Downrigger Pedestal - Marine Access $79.99 Works with surface or track mounting Corrosion-reisistant aluminum construction Pre-drilled and tapped top plate to accept swivel base and downrigger This sturdy 6'' Fixed Base Downrigger Pedestal from Cannon will work with either surface or track mounting. Made with corrosion resistant aluminum, the downrigger pedestal's top plate is pre-drilled and tapped to allow mounting of a Cannon swivel base and downrigger, as well as other swivel base and downrigger brands.Manufacturer model : 1904031. Works with surface or track mounting Corrosion-reisistant aluminum construction Pre-drilled and tapped top plate to accept swivel base and downrigger This sturdy 6'' Fixed Base Downrigger Pedestal from Cannon will work with either surface or track m

Auburn Tigers Blue Mini Mirror Key Chain $5.95 Keep track of your keys with this novel mini mirror key chain from Stockdale! Approximately 2 inches.

Auburn Tigers Orange Mini Mirror Key Chain $5.95 Keep track of your keys with this novel mini mirror key chain from Stockdale! Approximately 2 inches.

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Filed under: Bike Parts

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