Lesson 4, Topic 3
Summary – Computer Memory II
- Some examples of the secondary storage devices (an additional memory used to hold a large amount of information outside the Main memory) are: hard disk, CD, Zip, flash drive, and floppy disk.
- Secondary memory is used to hold numbers, characters, and information as opposed to cassette tapes.
- Another name for the hard disk is the fixed disk.
- A hard disk holds more information than a floppy disk, or flash disk, and the capacity is measured in GB.
- Zip disk is used primarily as a backup.
- Flash drive is found to be resistant to scratches, dust, breaks, or mechanical failure.
- The floppy disk is sealed inside a jacket as a protective coat in a square shape.
- Diskettes used to be the media through which we collect data, for subsequent transfer to another system. It has become obsolete, out-of-date, and old-fashioned.