dsd and csv

What does the following code do?
data check;
infile 'c:\datanew\tolearn\input.csv' dsd;
input name $ gender $ Age Height Weight;
run;
Answer:
It converts a comma seperated value file called input to a SAS dataset called check. The variables in the file is name and gender(Character variables), age weight and height(Numeric variables) and stores in a dataset called check.
data creates a dataset.
infile statement is used to specify the filename which is to be converted to a SAS dataset.
input statement specify the variables present in the file.The variables are seperated by a comma.
dsd specifies it is a csv file.
Functions of DSD and proc import similarities are to be dealt tomorrow.