i want to install hadoop on my laptop which has 3 GB RAM can someone help me ?

[#1]

i am new to BIG DATA

my laptop configuration is-

3Gb RAM And 64 bit OS

can someone help me to install hadoop 

[#2 · Accepted solution]

As long as your laptop is running a supported operating system (RHEL or
CentOS 5/6, SLES 11, Ubuntu 12.04 / 14.04, Debian 7), you can just follow
this guide:
http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/cdh_qs.html

Otherwise, you will first need to install one of these systems in a VM. You
should be able to complete that Hadoop example in a VM with that much RAM,
but be aware that you would have some trouble running the rest of the stack
that is not core Hadoop: the QuickStart VM has everything pre-installed and
configured, but requires 4GB of RAM for the VM itself.