What the differences between the loss of operating carryback and the loss of operating carry forward?

Thanks for invitation,

Supporting the answer of Mr. Soliman.

The loss of operating carryback : it's an accounting technique with which a company retroactively applies net operating lossses to a preceding year's income in order to reduce tax Liabilities present in the previous year. _They are similar to loss carry forwards, except companies apply their net operating lossses to preceding rather subsequent years'incomes _Loss of operating carry forward refers to an accounting technique that applies the current years' net operating lossses to further years' profits to reduce tax Liabilities and track profits accurately.