Why are File Sizes Important
Having some knowledge of file sizes is useful in your computer activites as the size of files will determine:
When you buy a computer, the specification may say it has a 160gb (160 Gigabyte) hardrive. This means you can store files,programs and your computers operating system within that limit. It follows that what you store has a size and files and programs etc have a size which is denoted in the form of a number (size) and then usually 2 letters as shown in the hardrive example above (160gb).
The sizes of files and other elements used and stored on your computer are measured in bits and bytes.
A Bit is the smallest unit of data that a computer uses.
The sizes are:
· 1 Bit = Binary Digit
A Kilobyte is actually 1024 bytes but most computer users and manufacturers notate it as 1000 as above.
Some examples of File Sizes
1. If you create a text document (extension .doc) in Microsoft Word with no images or clip art, the size
may only be in the region of 12kb to 40kb.
From the above you can see that on a computer used at home a 160GB hardrive would be very difficult to fill with just Microsoft Word documents but could be filled quite easily with perhaps a hundred movies.
Remember when emailing that the speed of transfer of data over the internet between two computers is reliant on "bandwith". This bandwith transfers small files better than large ones. Emailing a large photograph to someone may fail if the bandwidth between the two computers struggles with the amount of data being transferred in one file/email.
File Sizes and Computer Memory (RAM).
If your computer has 1GB of memory ( RAM - Random Access Memory ) it will be able to operate smoothly running more open programs than if it only has 500MB. Overloading a computers memory by trying to open and run too many programs leads to your commands working slower and instability leading to a possible crash ( computer locks up and becomes unusable without a restart).
File sizes affect the above because programs use the memory during the manipulation and creation of files saved on your computer.
The more memory (RAM) the better applies to computers.
Downloading from the Internet
A music track ( .mp3 music file size 2mb upwards) will take a lot less time to download than a movie ( .avi movie file size 700mb upwards). The bigger the file the slower the download.
Exact File Size Conversion
Fize Size Convertor
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