This depends, mspolar1.
1) If it's a Desktop computer, or a Laptop computer.
Desktop computers may, or may not, come with Integrated Graphics.
For those desktop computers that do Not, a graphics adapter card is used.
(Graphics adapter card is also referred to as a Graphics Card, or Video Card)
Desktop computers that Do come with Integrated Graphics, will also have a graphics expansion slot to install a graphics card in.
2) Laptops generally just have Integrated Graphics, BUT there are some models that Do have a Graphics Card, and there is the possibility of upgrading to a better one.
The above relates directly to Toshiba desktop computers, and laptops, as well as a reference to all desktop, and laptop computers.
To explain Integrated Graphics:
Another name for Integrated Graphics is OnBoard Graphics.
ON the motherBOARD.
The graphics chip is soldered directly to the motherboard.
[ Chip and Chipset are slang terms for I.C.
A graphics chip has a GPU on it,http://en.wikipedia.org/wiki/GPU
Integrated Graphics borrows some of the system's resources.
The Processor and Ram Memory.
The Processor and Ram Memory are trying to take care of the Operating System, and the program that is being ran.
Two Operating System examples are Windows XP, and Windows 7. An example of a program that may be borrowing system resources heavily, is a game.
If an intense game is being played, the system resources cannot keep up with the demand for graphics, when Integrated Graphics is installed.
(Slow frame rates, or freezing. Poor graphics. Even with low settings)
A dedicated graphics card borrows very little of the system resources, or none at all.
A graphics card has it's own Processor, and Ram Memory.
(GPU and graphics ram memory)
In direct reference to Toshiba laptop's, post the laptop Model Number to see if the graphics can be upgraded.
There are some Toshiba laptops where this is possible, and some that are not.
(Post in a Comment)
The one's that use Integrated Graphics, and no dedicated graphics card, are the ones that cannot be upgraded.