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Secondary Storage

in this ppt, you can learn about secondary storage. It starts with basic learning about storage and its type

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Secondary Storage

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  1. Secondary Storage Lower Ground Fortune Mall, behind Maharashtra bank, Sitabuldi, Nagpur 9975288300 www.pskitservices.com

  2. Content Hard disk History of Hard disk Types of Hard disk SATA Hard disk USB / External Hard disk SSD (solid State Drive) SSD SCSI (Scuzzy) What is Partitioning? Formatting

  3. Secondary Storage Secondary storage provides permanent or nonvolatile storage. Using secondary storage devices such as a hard disk, data and programs can be retained after the computer has been shut off. Hard-Disk HDD is Non-volatile permanent storage device, Uses magnetic media for storing data, and Hard disks save files by altering the magnetic charges of the disk’s surface to represent 1s and 0s. Hard disks retrieve data and programs by reading these charges from the magnetic disk. 2. Hard disks use rigid metallic platters that are stacked one on top of another. 3. Hard disk store and organize files using tracks, sectors and cylinders.

  4. History of Hard disk • The first hard disk drives were small in capacity, physically large, and expensive when compared to the cost of drives today. • They were about 4 inches tall, 5.25 inches wide, and 8 inches long, and they weighed almost 10 pounds. • In 1981, IBM introduced the XT computer with a 10 MB hard drive. (Winchester Drive)

  5. Types of Hard disk PATA / IDE (Parallel Advanced Technology Attachment) Having 40 Pins Molex Connector Use for Power RPM 5400/ 6400/ 7200 PATA is capable of data transfers speeds of 66/100/133 MBs/3 GBs second Pata Molex Sata Molex Pata IDE Hard Disk

  6. SATA Hard disk SATA (Serial Advanced Technology Attachment) It is Painless hard disk SATA Molex Connector Use for Power RPM 7200 SATA is capable of data transfers speeds of 150/300/600 MBs/ to 6 GBs second

  7. USB / External Hard disk A USB hard drive is an external hard drive that connects via USB. It uses the same design as an internal hard drive, except comes in an external casing that protects the drive. The case also includes a USB interface, which allows you to connect the drive to your USB port using a USB cable. Data A Data B Data C

  8. SSD (solid State Drive) • Unlike hard disks , which rotate and have read/write heads that move in and out • Solid state storage devices have no moving parts. Data and information are stored and retrieved electronically directly from these devices. • It is new hard disk than other , more costly and high speed hdd • It is pinless Hard disk like sata • Sata molex use for power • Sata data cable use • Access speed 6 Gbps plus • Faster Performance • No Vibrations Or Noise • More Energy Efficient

  9. SCSI (Scuzzy) • Small Computer System Interface • It is hot swap hard disk , use in server • It is available in 50 & 70 pins / pinless also • Access speed 6gps plus • RPM 10k, 15k plus

  10. What is Partitioning? • Disk partitioning is the process of logically dividing the storage space of a hard disk into separate areas commonly called as partition or drives • There are three types of partitions • Primary • Extended • Logical • Formatting • Formatting is the process of creating file system on the partition • A file system tells how the files and folders to be created are stored and retrieved. • FAT 16 Use in Windows 98 • FAT 32 Use in Windows 98, XP, Vista ,Win 7 • NTFS Use in Windows XP, Vista win8, win10, Server OS.

  11. Address => Lower ground Fortune mall behind Maharashtra bank , Sitabuldi, Nagpur. Thank You Phone => 9975288300 Yash Mardana Website => www.pskitservices.com

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