Hard Drives & Optical Drives

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Presentation transcript:

Hard Drives & Optical Drives Dave Chen, Noah Moran and Ryan Phillips

Storage Hard Drives (HDD) Solid State Drives (SSD)

Hard Drives Main source of storage Uses magnetic platters to store data Capacity: GB - TB --- Speed: RPM 1956 - first hard drive(350 RAMAC), 3.75mb, $40,000 1979 - ST506, 10mb, $15,000 1997 - Deskstar 16GP Titan, 16GB, $4,261 2014 - Seagate 8 Terabyte, $300 http://www.computerhistory.org/timeline/images/1956_ramac_rjohnson_large.jpg

Solid State Drives Faster than traditional hard drives Consume less power Lighter, quieter, cooler Basically a huge flash drive First SSD made in 1976 1976 - $36,000, 2mb 2014 - $79.99 http://images.pcworld.com/images/article/2012/01/evolution_ssd_15-8238865.jpg

Optical Drives Compact Discs (CD) Digital Versatile Discs (DVD) Blu-Ray Discs (BD)

Compact Discs Stores, records and plays back video and audio Spiral of the CD has bumps Reads and writes onto the CD using LASERS http://electronics.howstuffworks.com/cd5.htm 1982- First CD (CD-ROM), 703 MiB, $21.79 2014 - 52x 700MB, $14.99

Digital Versatile Discs Stores, records and plays back video and audio Higher capacity can be double sided Faster rotation speed than a CD Thinner lasers uses shorter wavelength 1995 - DVD Introduced,1.36Gb, $100 2014 - 16x 4.7GB, $28.99

Blu-Ray Discs Blue laser, lens specifications for a smaller laser Higher capacity than DVD and double sided Disc is placed closer to the beam than a DVD Usually backwards compatible 2007/2014 - Blu Ray Introduced in 07, 25GB, $15 http://i.kinja-img.com/gawker-media/image/upload/s--nboggh8q--/18mqca6ti9k7fjpg.jpg

Types of Optical Media ROM - Read Only Memory R - Recorded Once RE - Record, erase and re-record

Resources https://en.wikipedia.org/wiki/Compact_disc https://en.wikipedia.org/wiki/DVD https://en.wikipedia.org/wiki/Blu-ray_Disc http://electronics.howstuffworks.com/cd5.htm https://www.netacad.com