How many bytes is a 16 bit word?

2 bytes
Fundamental Data Types A byte is eight bits, a word is 2 bytes (16 bits), a doubleword is 4 bytes (32 bits), and a quadword is 8 bytes (64 bits).

How wide is a 16 bit instruction set?

In computer architecture, 16-bit integers, memory addresses, or other data units are those that are 16 bits (2 octets) wide. Also, 16-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size.

Is a word 16 or 32 bits?

Data structures containing such different sized words refer to them as WORD (16 bits/2 bytes), DWORD (32 bits/4 bytes) and QWORD (64 bits/8 bytes) respectively.

What is 16 bits of data called?

Common binary number lengths Each 1 or 0 in a binary number is called a bit. From there, a group of 4 bits is called a nibble, and 8-bits makes a byte. It could be 16-bits, 32, 64, or even more.

Are 16-bit registers?

Memory Registers There are two 16-bit registers used to hold memory addresses. The size of these registers is 16 bits because the memory addresses are 16 bits. They are: Program Counter This register is used to sequence the execution of the instructions.

What is the highest 16-bit number in binary?

65,535
A 16-bit register can store a positive number between 0 and 216 − 1, that is, 65,535. Thus a 16-bit word can be used for positive numbers in the range 0 to 65,535.

What is the maximum value for a 16-bit number?

65,536
Maximum Decimal Value for N Bits

How do you write 16-bit numbers?

The smallest signed 16-bit number is -32768 and the largest is 32767. For example, 1101,0000,0000,01002 or 0xD004 is -32768+16384+4096+4 or -12284.

Is a word always 16 bits?

In the x86 PC (Intel, AMD, etc.), although the architecture has long supported 32-bit and 64-bit registers, its native word size stems back to its 16-bit origins, and a “single” word is 16 bits. See 32-bit computer and 64-bit computer.

What is 32-bit called?

32-bit hardware and software is often referred to as x86 or x86-32. 64-bit hardware and software is often referred to as x64 or x86-64. 32-bit systems utilize data in 32-bit pieces while 64-bit systems utilize data in 64-bit pieces.

Why is 4 bits called a nibble?

The term nibble originates from its representing “half a byte”, with byte a homophone of the English word bite. An 8-bit byte is split in half and each nibble is used to store one decimal digit.

Is hexadecimal 16-bit?

Being a Base-16 system, the hexadecimal numbering system therefore uses 16 (sixteen) different digits with a combination of numbers from 0 through to 15. In other words, there are 16 possible digit symbols….Hexadecimal Numbers.

How many words are in a 16 bit system?

Normally speaking, 16-bit words are only found on 16-bit systems, like the Amiga 500. This is from the book Hackers: Heroes of the Computer Revolution by Steven Levy. .. the memory had been reduced to 4096 “words” of eighteen bits each. (A “bit” is a binary digit, either a 1 or 0. A series of binary numbers is called a “word”).

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How big is a word on a computer?

Special-purpose designs like digital signal processors, may have any word length from 4 to 80 bits. The size of a word can sometimes differ from the expected due to backward compatibility with earlier computers.

How many bits are in a word of memory?

Assuming we are talking about words of memory, there are two broad definitions. First, a word is often the natural size of a single item that can be accessed atomically in the hardware. That is very much a platform dependent size, but is usually 16, 32, or 64 bits, but other sizes have been found in the wild.