Systems, methods, and devices for real-time searching are disclosed. A
method comprises receiving a real-time data stream comprised of a
plurality of characters and placing the characters in shift registers,
the shift registers holding a current term. During each clock cycle of
the data stream, the current term is evaluated to determine whether it
matches any terms in a dictionary of terms, including indexing a
plurality of look-up tables with the characters in each of the shift
registers. A match data is output based on the evaluating. The method may
be implemented in hardware in a computer forensic device, a controller, a
computing device, and in other devices.