The byte was
originally the smallest number of bits that could hold a single character
(I assume standard ASCII). We still use ASCII standard, so 8 bits per character is still relevant.
Why are computers based on 8?
Octal was an ideal abbreviation of binary for these machines
because their word size is divisible by three
(each octal digit represents three binary digits). So two, four, eight or twelve digits could concisely display an entire machine word.
Why does computer represent data as 8 bits or a byte?
The byte is a unit of digital information that most commonly consists of eight bits. … Historically, the byte was the number of bits used to encode a single character of text in a computer and for this reason it is
the smallest addressable unit of memory in many computer
architectures.
How does a computer represent data bits or bytes?
Computers use
binary
– the digits 0 and 1 – to store data. A binary digit, or bit, is the smallest unit of data in computing. It is represented by a 0 or a 1. Binary numbers are made up of binary digits (bits), eg the binary number 1001.
Why do computers use bits to represent data?
A binary digit, or bit , is
the smallest unit of data in computing
. … The circuits in a computer’s processor are made up of billions of transistors . A transistor is a tiny switch that is activated by the electronic signals it receives. The digits 1 and 0 used in binary reflect the on and off states of a transistor.
Does 8 bytes equal 1 bit?
On almost all modern computers,
a byte is equal to 8 bits
. Large amounts of memory are indicated in terms of kilobytes, megabytes, and gigabytes.
Are there always 8 bits in a byte?
The byte is a unit of digital information that most commonly consists of
eight bits
. … The first bit is number 0, making the eighth bit number 7. The size of the byte has historically been hardware-dependent and no definitive standards existed that mandated the size. Sizes from 1 to 48 bits have been used.
Why does octal skip 8 and 9?
The digits used are 0, 1, 2, 3, 4, 5, 6 & 7. All the other digits can be expressed using these 8 digits. You will never see 8 or 9 in any of the numbers in the octal system. … This is
because the total number of digits in the number system is 8
.
What is a 8 bit number?
The largest number you can represent with 8 bits is 11111111, or
255 in decimal notation
. Since 00000000 is the smallest, you can represent 256 things with a byte. (Remember, a bite is just a pattern.
What is the decimal number for 1000 0000 in binary?
1000 in binary is
1111101000
. 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 10 bits to represent 1000 in binary.
What is 1000 mb called?
In this convention, one thousand megabytes (1000 MB) is equal to
one gigabyte
(1 GB), where 1 GB is one billion bytes.
Why do computers count from 0?
The Answer
Counting arrays from 0
simplifies the computation of the memory address of each element
. Not a huge difference but it adds an unnecessary subtraction for each access.
How many bytes are there in a 20 KB file?
| Kilobytes (KB) Bytes (B) decimal Bytes (B) binary | 20 KB 20000 Bytes 20480 Bytes | 21 KB 21000 Bytes 21504 Bytes | 22 KB 22000 Bytes 22528 Bytes | 23 KB 23000 Bytes 23552 Bytes |
|---|
What can bits represent?
The bit is the most basic unit of information in computing and digital communications. … The bit represents
a logical state with one of two possible values
. These values are most commonly represented as either “1” or ” 0′′, but other representations such as true/false, yes/no, +/−, or on/off are commonly used.
What is the biggest number 1 bit can represent?
There are four options: 00, 01, 10 and 11. A 1-bit image can have 2 colours, a 4-bit image can have 16, an 8-bit image can have 256, and a 16-bit image can have 65,536.
How many different numbers can 8 bits represent?
8 bits, can represent positive numbers from
0 to 255
.
