Slide 1StorageHistory of Storage DevicesStore 1 DVD on…Types of Storage DevicesTypes of Storage Devices (cont)Parameters that Affect Computer PerformanceCPU and MemoryMain MemoryMagnetic DiskOptical disk-CDOptical disk-DVDBRANDSStorage CapacityPopular BrandsPopular Brands (cont’d)Comparisons CD-RsPopular Brands (cont’d)Comparisons Internal Hard DrivesComparisons External Hard DrivesComparisons External Hard Drives (cont’d)Comparisons External Hard Drives (cont’d)Slide 23Slide 24Slide 25Slide 26“Man! A flash drive is so convenient for my party music.”Cost-effective RecommendationsSlide 29Slide 30SourcesHardware- Storage DevicesHTM304William SullivanVictor CortezWendi JardinJonathan ThompsonStoragePurpose:Without storage a computer can only function as a digital signal processing device (e.g. calculator, media player).History of Storage Devices1956- Hard Disk1971- 8’’ Floppy Disk1980- CD (compact disk)1994- Compact Flash, Zip Drive1995- DVD1998- Memory stick2001- USB key2004- HD-DVD, HolographicStore 1 DVD on…Types of Storage DevicesHard Disk- a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces.Optimal Disks- a storage device that uses tiny pits etched on the surface of a circular disc to store information, and reads this information by illuminating the surface with a laser diode and observing the reflection. Optical disc storage is non-volatile and sequential access. (Ex. CD, DVD)Types of Storage Devices (cont)USB flash drive- a NAND-type flash memory storage device integrated with a USB (universal serial bus) interface. Flash memory stores information in an array of floating gate transistors, called "cells". Each cell stores one bit of information.Holographic- Holographic memory is a technique that can store information at high density inside crystals or photopolymers. The advantage of this type of data storage is that the volume of the recording media is used instead of just the surface.• CPU and Memory• Main Memory• Magnetic Disk• Optical DiskParameters that Affect Computer PerformanceCPU and MemoryPerformance Factors: CPU Speed, Cache memory, Data bus speed, Data bus width.Beneficial for: Fast processing of data once the data reside in the main memory. Example Applications: Repetitive calculation of formulas and manipulation of large picture images.Main MemoryPerformance Factors: Size and SpeedBeneficial for: Holding multiple programs at one time, processing very large amounts of data.Example Applications: Processing large files in several programs and websites and gaming.Magnetic DiskPerformance Factors: Size, channel type and speed, rotational speed, seek time.Beneficial for: Storing many large programs and files, swapping files in and out of memory.Example Applications: store detailed maps and large data downloads from organizational servers.Optical disk-CDPerformance Factors: Up to 700 MBBeneficial for: Reading CDs, backup files.Example Applications: Install new programs, play and record music, backup data.Optical disk-DVDPerformance Factors: Up to 4.7 GBBeneficial for: Process both DVDs and CDs, backup files.Application Examples: Install new programs, play and record music and video, backup data.BRANDSStorage CapacityPopular Brands2.0 USB Flash DrivesSan DiskPNY AttachéSonyMemorexLexarPrice/Storage Capacity/Speed$14.99 - $199.99512MB – 16GB, 480MbpsFloppy DisksVerbatimMemorexMaxellPrice/Storage Capacity/Speed$3.49 - $9.99 (packs of 10 - 50)1.44MB, 500KbpsPopular Brands (cont’d)Optical DisksSonyMemorexVerbatimMaxellFuji FilmTDKPrice/Speed/Storage CapacityCD-R/RW: $8.49 - $32.9940x – 52x; 4x (RW)700MB, 80minDVD-R/RW: $9.99 - $63.9916x; 4x (RW)4.7GB, 120minDouble Layer DVD-R: $19.49 - $99.998x8.5GB, 240minBlu-Ray: $20.99/each2x25GB, 120min (HD), 780min (standard)ComparisonsCD-RsSource: BestBuy.comPopular Brands (cont’d)Hard Disk DrivesWestern DigitalSeagateHitachiMaxtorStorage Capacity/Price/SpeedInternal: 80GB – 750GB$83.99 - $282.995400 RPM – 10,000 RPMExternal: 12GB – 1TB$51.99 - $449.995400 RPM – 7200 RPMComparisonsInternal Hard DrivesSource: BestBuy.comComparisonsExternal Hard DrivesSource: BestBuy.comComparisonsExternal Hard Drives(cont’d)Source: BestBuy.comComparisonsExternal Hard Drives (cont’d)Source: BestBuy.comPreviously Covered: HistoryFunctionMajor ParametersMajor Brands Now…Who should buy and where should they buy?“I save all of my essays on my flash drive and keep it on my keychain so when I am at school, work, or wherever I have access to my schoolwork.”Jenny L. BigpondLiberal Studies MajorCSUSM CougarAge: 22Years at CSUSM: 3.5Student (document use)“I analyze data for the pool service industry. This is easy to do with QuickBooks software installed on my hard disk. I can print reports based on pricing and inventory as well as actual costs versus profit. I also backup all of my invoices on a flash drive.” Tonya L. BigpondVice PresidentBigpond Enterprises INC.Age: 47Years with company: 4Company Manager (data analysis use)“Our customer and catalog lists are stored on hard disks. Our new catalog that comes out every year is put on the hard disk. Our products and pictures are also stored on the hard disks.”Cindy L. ThompsonClient Service Specialists/ReceptionistsEuro American Propagators LLCAge: 48Years with company: 5.5Secretary (documentation use)“Man! A flash drive is so convenient for my party music.” Kyle McClellanCoBA MajorCSUSM CougarAge: 20Years at CSUSM: 2.5Home User (entertainment)Cost-effective RecommendationsSpecificationsSituationi.e. emergency (backup)Capacityi.e. how big or smallBrandi.e. brand name or not (generic)Other optionsi.e. firewall (security)Places to PurchaseBest BuyCircuit CityWal-martFry’se-BayOther online sitesCDW IncSpecial Report:Hard disk exxxposedCheck this out!Q & ASourceshttp://gadgets.for.se/history-of-data-storage/Music: Scatman John “Scatman”Wikipedia.orgBestBuy.com/Frys.comMIS
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