Computer Science

In transposition-based cipher, the order of the plain text is not preserved. They can be very simple to identify.

EBCDIC uses 8 bits for representation. Therefore, 28 i.e., 256 different characters can be represented and not 128. Thus, the above statement is false.

Bitwise complement is basically used to convert all the 0 digits to 1 and the 1s to 0s. So, for 0 = 00000000(in 8-bits) ::: 11111111(1s complement). The bitwise complement is often referred to as the 1s complement.

The secondary memory is the long term store for programs and data while main memory holds program and data currently in use. This is a physical organization.

BCD numbers are represented as:

In parallel processing, the several instructions are executed simultaneously. Parallel processing system provides the concurrent data processing to increase the execution time.