Files and folders
FILES
Windows Explorer Windows XP, Vista, 7
File Explorer Windows 8
Finder (Mac)
Get Explorer by:
Right-click START, Save (as), or E + Windows key
Filename.extension (or .qualifier)
file.xxx
.pdf (eg U3A newsletter)
.doc/docx (produced by WORD)
.xls/xlsx (produced by EXCEL)
photos or images (don’t worry what the letters stand for!)
.jpg, .png, .bmp, .tiff, .gif
FOLDERS
Holders for files – any number, any type
To suit you – easier to find/save
Manipulate: Files or Folders can be
CUT = copy and delete
COPY = copy and retain
PASTE = make new copy of CUT or COPY’d file/folder
RENAME (but file must not be OPEN)
Can create a NEW FOLDER within an existing one
FILE SIZES
Photos/images larger than .doc or .xls
Movies (.mpg .mp4 .mov .avi .wmv .....) much larger to huge
BYTE
8 bits (binary digits = 0 or 1)
KILOBYTE
1024 bytes (ie 210 ) but normally taken as 1000 = 1KB
MEGABYTE 1024 KB = 1MB –normally considered 1 million bytes
GIGABYTE
1000 MB = 1GB
TERABYTE
1000 GB = 1TB
ie if a file is 100KB, you can hold c10 million of them in 1TB