Data Representation

13 terms by cc9908

Create a new folder

Advertisement Upgrade to remove ads

Binary Code

A two state electronic device that is made of two digits.

Advantages of Binary

Arithmitic calculations are easier and needs only two voltages.

Units

Bit, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, etc

Floating-Point Representation

Made up of the Mantissa and the Exponent

Advantage of Floating-Point Representation

A few number of Bits needed.

Disadvantage Of Floating-Point Representation

Not much accuracy, rounded to a set number of figures.

Text - Control Characters

Non-printable charaters, like enter or space

Text - Character Set

Printable Characters, such as A, B, C or +, -, ?

Text

There is a unique binary code for each characters.

Bitmap Graphics

Stores data as pixels.

Bitmap Graphics - Resolution

The number of pixels in an area. There is high resolution, which is smaller pixels, and low resolution, and that is bigger pixels.

Bitmap Graphics - Bit Depth

The number of pixels used to encode the colour of each pixel.

Storage Calculations

The number of Pixels required to store colour

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set