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Extra info for [Article] Neural Solutions for Information Security
In the decimal counting system that we use every day there are placeholders defined by commas, which tell us how many units we are describing with a given number. See Table 2-1. For example, the number 1000 consists of one thousands, zero hundreds, zero tens and zero units (ones). What if the placeholders had a different meaning? What if the placeholders meant this? See Table 2-2. Table 2-1 Tens of Millions Base of Ten Millions Table 2-2 Hundreds of Thousands Tens of Thousands Thousands Hundreds Tens Units 1 0 0 0 Base of Two Decimal number Binary number 128 64 32 16 8 1 4 0 2 0 1 0 22 Digital CCTV Table 2-3 Binary Counting Decimal Number 0 1 2 3 4 5 6 7 8 9 10 Binary Number 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 Notice that as you read from right to left, the decimal value of the placeholder doubles.
Unfortunately, synchronizing generators can add substantial cost to a video system. The sync generator itself is a cost and each camera in a system requires at least one coaxial cable, sometimes two, from the sync generator in addition to the coaxial cable that carries the composite video back to the switcher. For this reason, sync generators are seldom used in CCTV systems. Since almost all of the cameras in a CCTV system use either primary Alternating Current (AC) power or low voltage AC power, and since both primary AC and low voltage AC have a 60-cycle alternating current, the AC itself can be used as a cheap synchronizing source.
In this case, 1000 would mean eight because the column representing eight has an “on” value and the remaining numbers all have an “off” value. One (8), plus zero (4), plus zero (2), plus zero (1). Using this reasoning, the binary number 1001 would represent the number nine. One (8), plus zero (4), plus zero (2), plus one (1). 1010 would represent the number ten. One (8), plus zero (4), plus one (2), plus zero (1) or eight plus two equals ten. You should begin to see that when using binary numbers, each bit holds the value of increasing powers of two.