Computer Storage

Computer Storage - Computer Storage Computer Storage...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Computer Storage
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Computer Storage Primary Storage RAM (Random Access Memory) volatile Secondary Storage More permanent storage Non-volatile
Background image of page 2
Storage Amounts Byte = smallest unit of storage equal to 8 bits 1 byte can hold one character on keyboard In Bytes Number of characters Description Typical Use Byte 1 one character a single letter Kilobyte 1,000 one thousand characters a few paragraphs Megabyte 1,000,000 one million characters a digital picture, 700 megabytes on a CD Gigabyte 1,000,000,000 one billion characters a 30 minute movie, 4.3 gigabytes on a DVD Terabyte 1,000,000,000,000 one trillion characters a library of photos, movies, and music Petabyte 1000 Terabytes one quadrillion characters 50 petabytes of text would be sufficient to represent the sum of all written works of humankind ever
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Secondary Storage Hard drive CD/DVD Optical storage Flash drive Solid state storage Thumb/jump drive Solid state storage
Background image of page 4
Hard Drive Storage What are tracks and sectors ? Track is narrow recording band that forms full circle on disk Sector stores up to 512 bytes of data Formatting  prepares disk for use
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Hard Drive Storage How does a hard disk work?
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/08/2011 for the course CIS 0835 taught by Professor Forman during the Spring '11 term at Temple.

Page1 / 19

Computer Storage - Computer Storage Computer Storage...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online