4.) HOT BIZ*TIP
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Basics
File sizes tend
to be one of the more perplexing issues for both the fledgling and
intermediate computer user. So, I've put together a breakdown of the
various file size "units" you may encounter.
Bit- The smallest
unit in computing. It can have a value of 1 or 0. It is either “on”
or “off”. The combinations of 1 or 0 make up a byte.
Byte - A (still
small) unit of information made up of 8 bits. This is equivalent to
one letter or number.
Kilobyte(KB)
- A unit of approximately 1000 bytes (1024 to be exact). Most download
sites use kilobytes when they give file sizes.
Megabyte (MB) -
220 bytes = 1,048,576 bytes or 1,024 kilobytes. Sometimes used to mean
1 million bytes.
Gigabyte (GB) -
Approximately 1 billion bytes (1024 MB). Most hard drive sizes are
listed in gigabytes.
Terabyte (TB) -
Approximately 1 trillion bytes (1024 GB). That's 1,000,000,000,000
bytes
Humungabyte
(HB) – only kidding <Grin> it IS April Fools Day.
OK, now for a
little practical application.
A 3 1/2" floppy
disk holds 1.44 Megabytes (1,474 KB).
A CD Rom holds
650-700 Megabytes (though most programs you get don't utilize the
whole amount). This would be around 450 of those 3.5 floppies.
A 20 Gig hard
drive will hold the same amount of info as 31 CD ROMs or 14,222 floppy
disks.
It takes between
7-10 minutes to download a one megabyte (1024 KB) file using the
average dial up internet connection.
A typical page of
text is around 4KB.
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