can i use a vga adapter on my computer?

[fishy554]

i bought an adapter that converts RCA cables (red,white and yellow cables) to vga and i was wondering instead of connecting to a separate monitor can i connect it to my laptop? i have 1 vga port also i have a c55t-a5222 toshiba laptop i wanted to play my ps3 on a monitor just wondering if i can use my laptop instead

 

[ss202sl]

The laptop is video out(it not an output). You'd need to get video capture hardware to get the video into your laptop to view it on the laptop screen.

 

[Alabalcho]

Even with capture board, the delay taken to digitize the signal and show it on the laptop screen will make your gameplay awful - been there, tried that.
You might try the adapter you bought on standard PC monitor with VGA input.

Edit: You know that VGA carries video only, don't you? So, that adapter you got - how you connected red/white/yellow to it? What is the adapter model?