There is any allowance of the name of Computer Allowance. Rs. 800 pm allowed for deduction for Transport Allowance.
But yes there is one allowance called Achedmic Allowance and this is exempt upto that limit which has been spent for official purpose.
Now, you can claim this computer education allowance under that exemption but you will have to keep any record for which you are going to take exemption.
By-the-way are you sure that this is computer education allowance not CHILDREN EDUCATION ALLOWANCE. If this is children education allowance then exemtption is Rs. 100 pm per child is exempt and upto two children.