## How many characters can 16 bits hold?

65,536

A 16-bit integer can store 216 (or 65,536) distinct values. In an unsigned representation, these values are the integers between 0 and 65,535; using two’s complement, possible values range from −32,768 to 32,767.

**What is a 16-bit Unicode character?**

Unicode uses two encoding forms: 8-bit and 16-bit, based on the data type of the data that is being that is being encoded. The default encoding form is 16-bit, where each character is 16 bits (2 bytes) wide. Sixteen-bit encoding form is usually shown as U+hhhh, where hhhh is the hexadecimal code point of the character.

**What is the highest 16-bit number in hex?**

Table 3-8. Example conversions from unsigned 16-bit binary to hexadecimal and to decimal. There are also 65,536 different signed 16-bit numbers. The smallest signed 16-bit number is -32768 and the largest is 32767.

### What is the largest number that can be held in 16 bits?

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 are the 256 characters?**

The maximum number of characters that can be represented in extended ASCII is 256. As an example, the ASCII code for uppercase A is 65.

…

Extended ASCII.

Character | Code | Representation Binary |
---|---|---|

A | 65 | 01000001 |

**How long is 128bits?**

The 128-bit data type can handle up to 31 significant digits (compared to 17 handled by the 64-bit long double). However, while this data type can store numbers with more precision than the 64-bit data type, it does not store numbers of greater magnitude.

#### Should I use UTF-8 or UTF-16?

UTF-16 is, obviously, more efficient for A) characters for which UTF-16 requires fewer bytes to encode than does UTF-8. UTF-8 is, obviously, more efficient for B) characters for which UTF-8 requires fewer bytes to encode than does UTF-16.

**Is UTF-16 the same as Unicode?**

UTF-16 is an encoding of Unicode in which each character is composed of either one or two 16-bit elements. Unicode was originally designed as a pure 16-bit encoding, aimed at representing all modern scripts.

**Is hexadecimal still used?**

Hex codes are used in many areas of computing to simplify binary codes. It is important to note that computers do not use hexadecimal – it is used by humans to shorten binary to a more easily understandable form. Hexadecimal is translated into binary for computer use.

## What comes after F in hexadecimal?

So Hexadecimal numbers have 16 symbols or digital values, i.e 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F. A, B, C, D, E, F are single bit representations of 10, 11, 12, 13, 14 and 15 respectively.

**What is the largest number in the world?**

G-O-O-G-O-L

Notice how it’s spelled: G-O-O-G-O-L, not G-O-O-G-L-E. The number googol is a one with a hundred zeros. It got its name from a nine-year old boy.

**What is the highest binary number?**

The number 2,147,483,647 (or hexadecimal 7FFFFFFF16) is the maximum positive value for a 32-bit signed binary integer in computing.

### Are there 128 characters?

The ASCII Character Set

ASCII is a 7-bit character set containing 128 characters. It contains the numbers from 0-9, the upper and lower case English letters from A to Z, and some special characters. The character sets used in modern computers, in HTML, and on the Internet, are all based on ASCII.

**How many bits is a space?**

Note the use of 32 for a space — 32 is the ASCII code for a space. We could expand these decimal numbers out to binary numbers (so 32 = 00100000) if we wanted to be technically correct — that is how the computer really deals with things.

**Will we ever need 128-bit?**

A 128-bit processor may never occur because there is no practical reason for doubling the basic register size. One of the reasons for migrating from 32-bit to 64-bit computers was memory (RAM) addressing; however, for all practical purposes, there was only a need for a few more bits beyond 32 (see binary values).

#### Does 128-bit exist?

While there are currently no mainstream general-purpose processors built to operate on 128-bit integers or addresses, a number of processors do have specialized ways to operate on 128-bit chunks of data.

**Why did UTF-8 replace the ASCII?**

Why did UTF-8 replace the ASCII character-encoding standard? UTF-8 can store a character in more than one byte. UTF-8 replaced the ASCII character-encoding standard because it can store a character in more than a single byte. This allowed us to represent a lot more character types, like emoji.

**What is the advantage of using UTF-8 instead of UTF-16?**

## Why do programmers use hexadecimal instead of binary?

Software developers and system designers widely use hexadecimal numbers because they provide a human-friendly representation of binary-coded values. Each hexadecimal digit represents four bits (binary digits), also known as a nibble (or nybble).

**Why do we use hex instead of binary?**

The main advantage of a Hexadecimal Number is that it is very compact and by using a base of 16 means that the number of digits used to represent a given number is usually less than in binary or decimal. Also, it is quick and easy to convert between hexadecimal numbers and binary.

**What 0x means in hex?**

The prefix 0x is used in code to indicate that the number is being written in hex. But what is ‘B’ doing in there? The hexadecimal format has a base of 16, which means that each digit can represent up to 16 different values. Unfortunately, we run out of numerical digits after ‘9,’ so we start using letters.

### What is Z hexadecimal?

ASCII, decimal, hexadecimal, octal, and binary conversion table

ASCII | Decimal | Binary |
---|---|---|

Y | 89 | 1011001 |

Z | 90 | 1011010 |

[ | 91 | 1011011 |

\ | 92 | 1011100 |

**What is this number 1000000000000000000000000?**

Some Very Big, and Very Small Numbers

Name | The Number | Symbol |
---|---|---|

septillion | 1,000,000,000,000,000,000,000,000 | Y |

sextillion | 1,000,000,000,000,000,000,000 | Z |

quintillion | 1,000,000,000,000,000,000 | E |

quadrillion | 1,000,000,000,000,000 | P |

**What is the last number before infinity?**

Infinity is not a number; and there is no highest number. We say that the set of real numbers is infinite, which literally means, there is “no end”; numbers go on forever.

#### Does 1111 1111 calculate binary?

1111 in binary is 10001010111. Unlike the decimal number system where we use the digits 0 to 9 to represent a number, in a binary system, we use only 2 digits that are 0 and 1 (bits). We have used 11 bits to represent 1111 in binary.

How to Convert 1111 in Binary?

Dividend | Remainder |
---|---|

277/2 = 138 | 1 |

138/2 = 69 | 0 |

69/2 = 34 | 1 |

34/2 = 17 | 0 |