Assume you are working on a data analysis project about laptop computers. Each computer is described by the following variables(attributes):
variable example type
product id VGN-NW240
brand Sony
model Baio
cpu speed 2.6
memory size 4
hard drive size 400
weight 5.3
screen size 15.2
webcam yes
average reviewer rating 4.3
Identify the kinds of each variable as nominal, ordinal, interval or ratio.