Uses of different types of blood group why we need to store it

A positive donate his blood A +, B +
A negative donate his blood A+ , A- , AB+ and AB-
B positive donate his blood B+, AB+
B negative donate his blood B+, B-, AB+ and AB-
O positive donate his blood O+, A+, B+ and AB+
O negative donate his blood to all blood group
AB positive donate his blood to only AB +
AB negative donated his blood group to AB+ and AB-