CS, Computer ScienceInput --> Computer Science --> OutputBinary SystemDecimal number sys - e.g. 123 = 1*100 + 2*10 + 3*1Binary number sys - e.g. 3 = 011Bit = Binary digit -----> byte = 8 Bits (2^8 = 256)look likes Transister in Computeron-1/off-0various data expressionbit, byte, KB, MB, GB, TB