The use of atomic weapons at the end of World War 2 fostered fears about their potential use during the Cold War years.
Interrupts and signals are low-level mechanisms that can alter the flow of control in a way similar to a subroutine, but usually occur as a response to some external stimulus or event (that can occur asynchronously), rather than execution of an 'in-line' control flow statement.
A statement of cash flows is one of the four major financial statements prepared by corporations at the end of each accounting period. The goal of the cash flow statement is to provide an accurate picture of the financial health of a company without the cover of accrual-based accounting treatments.