Files Flashcards
operating system
a powerful, and usually large, program that controls and manages the hardware and other software on a computer.
file extension
the character or group of characters after the period that makes up an entire file name.
file attribute
is a specific condition in which a file or directory can exist.
read only file
any file with the read-only file attribute turned on.
hard drive
he main, and usually largest, data storage hardware device in a computer
optical drive
retrieve and/or store data on optical discs like CDs, DVDs, and BDs (Blu-ray discs), any of which hold much more information than previously available portable media options like the floppy disk
file system
an index or database containing the physical location of every piece of data on the hard drive or another storage device
file format
speaks to the way in which the data in the file is organized - in other words, what sort of file it is
bitmap
a method for storing images using pixels. It is called a bitmap because it is a ‘map’ of where the ‘bits’ of information are stored
different types of picture formats
Images can be saved in a number of formats, such as JPEG, TIFF, PNG and GIF
lossless compression
works by rewriting the data so it is stored more efficiently. The quality of the file will stay the same
lossy compression
works by removing some of the data. The quality of the file will be reduced
