Computer arithmetic is accomplisehd using the ___________ number system?

Question

a) Hexadecimal
b) Decimal
c) Binary
d) Octal

Answer 1

Binary.

Give me the ten points or I'll give you a wrong answer next time... :-D

Everything a computer does is binary. We use hexadecimal as a means of representing bytes in a manner easier for humans to work with.

Answer 2

The binary numeral system (base 2 numerals), or bin for short, represents numeric values using two symbols, typically 0 and 1. More specifically, the usual binary numeral system is a positional notation with a radix of 2. Owing to its straightforward implementation in electronic circuitry, the binary system is used internally by virtually all modern computers.

Arithmetic in binary is much like arithmetic in other numeral systems. Addition, subtraction, multiplication, and division can be performed on binary numerals.The simplest arithmetic operation in binary is addition. Subtraction works in much the same way. Multiplication in binary is similar to its decimal counterpart. Two numbers A and B can be multiplied by partial products: for each digit in B, the product of that digit in A is calculated and written on a new line, shifted leftward so that its rightmost digit lines up with the digit in B that was used. The sum of all these partial products gives the final result.

Since there are only two digits in binary, there are only two possible outcomes of each partial multiplication:

* If the digit in B is 0, the partial product is also 0
* If the digit in B is 1, the partial product is equal to A

Binary division is again similar to its decimal counterpart.

Though not directly related to the numerical interpretation of binary symbols, sequences of bits may be manipulated using Boolean logical operators. When a string of binary symbols is manipulated in this way, it is called a bitwise operation; the logical operators AND, OR, and XOR may be performed on corresponding bits in two binary numerals provided as input. The logical NOT operation may be performed on individual bits in a single binary numeral provided as input. Sometimes, such operations may be used as arithmetic short-cuts, and may have other computational benefits as well. For example, an arithmetic shift left of a binary number is the equivalent of multiplication by a (positive, integral) power of 2.
Hexadecimal is primarily used in computing as the most common form of expressing a guaranteeably human-readable string representation of a byte. All 256 possible values of a byte can be represented using 2 digits in hexadecimal notation. Some people assume that using 8-bit "ASCII" to represent the value of a byte should work, but this has a number of problems; firstly, there are a number of unprintable control characters, secondly, ASCII itself stops at 7 bits with the remainder being system-specific extensions, and, finally, even assuming all characters in the machine's set were displayable as something neither users nor input methods are generally prepared to handle 256 unique characters.

In mathematics and computer science, base-16, hexadecimal, or simply hex, is a numeral system with a radix or base of 16, usually written using the symbols 0–9 and A–F or a–f. For example, the decimal numeral 79 whose binary representation is 01001111 can be written as 4F in hexadecimal (4 = 0100, F = 1111). The current hexadecimal system was first introduced to the computing world in 1963 by IBM. An earlier version, using the digits 0–9 and u–z, was used by the Bendix G-15 computer, introduced in 1956.

Answer 3

Computer based on Digital signals which are 1 and 0 so correct answer is BINARY number system.

Answer 4

C) Binary.

The truth is you could actually take any of them and work it out yourself, but an actuall computer works in Binary.

Answer 5

C) Binary