Bits and Bytes Bits and Bytes At the smallest scale in the computer, information is stored as bits and bytes. In this section, we'll look at how that works. Bit Bit, like an atom, the smallest unit of storage A bit stores just a 0 or 1 "In the computer it's all 0's and 1's" ... bits Anything with two separate states can store 1 bit -Nick's tennis racket example Chip uses areas of electric charge as 0/1 states Hard drive uses spots North/South magnetism 0/1 states A bit is too small to be much use Group 8 bits together to make 1 byte Everything in a computer is 0's and 1's ... what does that mean? The bit stores just a 0 or 1 .. it's the smallest building block of storage. Byte One byte = grouping of 8 bits e.g. 0 1 0 1 1 0 1 0 One byte can store one letter, e.g. 'A' or 'x' How Many Patterns With N Bits? How many distinct patterns can be made with 1, 2, or 3 bits? Number of bits 3 bits vs.

2 bits Consider just the leftmost bit It can only be 0 or 1 Lefmost bit is 0, then append 2-bit patterns Leftmost bit is 1, then append 2-bit patterns again Result ... 3-bits has twice as many patterns as 2-bits Number of bits In general: add 1 bit, double the number of patterns 1 bit - 2 patterns 8 bits - 256 - one byte Mathematically: n bits yields 2n patterns (2 to the nth power) One Byte - 256 Patterns 1 byte is group of 8 bits 8 bits can make 256 different patterns How to use the 256 patterns? How to store a number in a byte? Start with 0, go up, one pattern per number, until run out of patterns 0, 1, 2, 3, 4, 5, ... 254, 255 One byte can hold a number between 0 and 255 i.e.

with 256 distinct patterns, we can store a number in the range 0..255 Code: pixel.setRed(n) took a number 0..255. Why? The red/green/blue image numbers are each stored in one byte Bytes "Byte" - unit of information storage A document, an image, a movie .. how many bytes? 1 byte is enough to hold 1 typed letter, e.g. 'b' or 'X' Later we'll look at storage in: RAM, hard drives, flash drives All measured in bytes, despite being very different hardware Kilobyte, KB, about 1 thousand bytes Megabyte, MB, about 1 million bytes Gigabyte, GB, about 1 billion bytes Terabyte, TB, about 1 trillion bytes (rare) The space that data takes up in the computer is measured in by the "byte". One byte is big enough to hold a single typed letter, like 'a'. Here we'll look at storing data in RAM memory and in persistent storage like a hard drive. All of that storage space will be measured in bytes. We'll look at byte arithmetic in more detail later.

Bytes and Letters - ASCII Code ASCII is an encoding representing each typed letter by a number Each number is stored in one byte (so the number is in 0..255) A is 65 space is 32 "Unicode" is an encoding for mandarin, greek, arabic, etc. languages, typically 2-bytes per "letter" 32 space 33 ! 34 " 35 # 36 $ 37 % 38 & 39 ' 40 ( 41 ) 42 * 43 + 44 , 45 - 46 . 47 / 48 0 49 1 50 2 51 3 52 4 53 5 54 6 55 7 56 8 57 9 58 : 59 ; 60 < 61 = 62 > 63 ?

64 @ 65 A 66 B 67 C 68 D 69 E 70 F 71 G 72 H 73 I 74 J 75 K 76 L 77 M 78 N 79 O 80 P 81 Q 82 R 83 S 84 T 85 U 86 V 87 W 88 X 89 Y 90 Z 91 [ 92 \ 93 ] 94 ^ 95 _ 96 ` 97 a 98 b 99 c 100 d 101 e 102 f 103 g 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o 112 p 113 q 114 r 115 s 116 t 117 u 118 v 119 w 120 x 121 y 12

2 z 123 { 124 | 125 } 126 ~ Typing, Bytes, and You Bits and Bytes Bits and Bytes At the smallest scale in the computer, information is stored as bits and bytes.

In this section, we'll look at how that works. Bit Bit -- like an atom -- the smallest unit of storage A bit stores just a 0 or 1 "Computer is all 0's and 1's" ... bits Anything with two separate states can store 1 bit --Nick's tennis racket example Chip uses electricity 0/1 states Hard drive uses spots North/South magnetism 0/1 states Bit too small to be much use Group 8 bits into a byte Everything in a computer is 0's and 1's ... what does that mean? The bit stores just a 0 or 1 .. it's the smallest building block of storage. Byte One byte = grouping of 8 bits e.g. 0 1 0 1 1 0 1 0 One byte can store one letter, e.g. 'b' or 'x' How much exactly can one byte hold? How many distinct/separate patterns can be made with 1, 2, or 3 bits?

(Not hold you responsible for details, go through derivation) Number of bits Consider just the leftmost bit It can only be 0 or 1 Lefmost bit is 0, append 2-bit patterns Leftmost bit is 1, append 2-bit patterns again Result ... 3-bits has twice as many patterns as 2-bits Number of bits In general: add 1 bit, double the number of patterns 1 bit - 2 patterns What are bits, bytes, and other units of measure for digital information? Include archived documents ARCHIVED: What are bits, bytes, and other units of measure for digital information? A bit is a binary digit, the smallest increment of data on a computer. A bit can hold only one of two values: 0 or 1, corresponding to the electrical values of off or on, respectively. Because bits are so small, you rarely work with information one bit at a time. Bits are usually assembled into a group of eight to form a byte. A byte contains enough information to store a single ASCII character, like "h".

A kilobyte (KB) is 1,024 bytes, not one thousand bytes as might be expected, because computers use binary (base two) math, instead of a decimal (base ten) system. Computer storage and memory is often measured in megabytes (MB) and gigabytes (GB). A medium-sized novel contains about 1 MB of information. 1 MB is 1,024 kilobytes, or 1,048,576 (1024x1024) bytes, not one million bytes. Similarly, one 1 GB is 1,024 MB, or 1,073,741,824 (1024x1024x1024) bytes. A terabyte (TB) is 1,024 GB; 1 TB is about the same amount of information as all of the books in a large library, or roughly 1,610 CDs worth of data. A petabyte (PB) is 1,024 TB.

1 PB of data, if written on DVDs, would create roughly 223,100 DVDs, i.e., a stack about 878 feet tall, or a stack of CDs a mile high. Indiana University is now building storage systems capable of holding petabytes of data. An exabyte (EB) is 1,024 PB. A zettabyte (ZB) is 1,024 EB. Finally, a yottabyte (YB) is 1,024 ZB. Many hard drive manufacturers use a decimal number system to define amounts of storage space. As a result, 1 MB is defined as one million bytes, 1 GB is defined as one billion bytes, and so on. Since your computer uses a binary system as mentioned above, you may notice a discrepancy between your hard drive's published capacity and the capacity acknowledged by your computer. For example, a hard drive that is said to contain 10 GB of storage space using a decimal system is actually capable of storing 10,000,000,000 bytes.

However, in a binary system, 10 GB is 10,737,418,240 bytes. As a result, instead of acknowledging 10 GB, your computer will acknowledge 9.31 GB. This is not a malfunction but a matter of different definitions.

We count in base 10 by powers of 10: 101 = 10 102 = 10*10 = 100 103 = 10*10*10 = 1,000 106 = 1,000,000 Computers count by base 2: 21 = 2 22 = 2*2 = 4 23 = 2*2*2 = 8 210 = 1,024 220 = 1,048,576 So in computer jargon, the following units are used: Unit 1 petabyte (PB) 1,125,899,906,842,624 bytes Note: The names and abbreviations for numbers of bytes are easily confused with the notations for bits. The abbreviations for numbers of bits use a lower-case "b" instead of an upper-case "B". Since one byte is made up of eight bits, this difference can be significant.

For example, if a broadband Internet connection is advertised with a download speed of 3.0 Mbps, its speed is 3.0 megabits per second, or 0.375 megabytes per second (which would be abbreviated as 0.375 MBps). Bits and bit rates (bits over time, as in bits per second [bps]) are most commonly used to describe connection speeds, so pay particular attention when comparing Internet connection providers and services. This document was developed with support from National Science Foundation ( NSF ) grants 1053575 and 1548562 . Any opinions, findings, conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF. This is document ackw in the Knowledge Base. Last modified on 2013-01-07 00:00:00. How many bits are there in a byte? - Quora Quora Written Apr 16, 2012 This is architecture-dependent. originally it was described as 1 to 6 bits (typical I/O equipment of the period used 6-bit chunks of information).

The move to an 8-bit byte happened in late 1956 Some older architectures used byte for quantities of 6, 7, or (especially) 9 bits ( catb.org/~esr/jargon/html/B/byte.html ) The DEC-10 byte pointer hardware worked with arbitrary-size bytes. The byte pointer included the byte size in bits. I don't remember whether bytes could span word boundaries; I think they couldn't, which meant that you'd have a few waste bits per word if the byte size was not 3, 4, 9, or 18 bits. (The DEC-10 used a 36-bit word.) Sort of shameless copy. There were older systems where byte was less than 8-bits. Now C/C++ specifications have mandated at least 8 bits for a byte i.e. it may be more than that. DSP processors would have those mostly. Copied verbatim below: The Control Data 6600 (and its brothers) Central Processor used a 60-bit word, and could only address a word at a time. In one sense, a "byte" on a CDC 6600 was 60 bits.

The DEC-10 byte pointer hardware worked with arbitrary-size bytes. The byte pointer included the byte size in bits. I don't remember whether bytes could span word boundaries; I think they couldn't, which meant that you'd have a few waste bits per word if the byte size was not 3, 4, 9, or 18 bits. (The DEC-10 used a 36-bit word.) The first commercial CPU by Intel was the Intel 4004 (4-bit) 16-bit words are only found on 16-bit systems, like the Amiga 500. CPU 32-bits 1 word is 4 bytes CPU 64-bits 1 word = 8 bytes Byte: Today, a byte is almost always 8 bit. However, that wasn't always the case and there's no "standard" or something that dictates this. Since 8 bits is a convenient number to work with it became the de facto standard. Word: The natural size with which a processor is handling data (the register size). The most common word sizes encountered today are 8, 16, 32 and 64 bits, but other sizes are possible.

For examples, there were a few 36 bit machines , or even 12 bit machines . The byte is the smallest addressable unit for a CPU. If you want to set/clear single bits, you first need to fetch the corresponding byte from memory, mess with the bits and then write the byte back to memory. The word by contrast is biggest chunk of bits with which a processor can do processing (like addition and subtraction) at a time. That definition is a bit fuzzy, as some processor might have different word sizes for different tasks (integer vs. floating point processing for example). The word size is what the majority of operations work with. There are also a few processors who have a different pointer size: for example, the 8086 is a 16-bit processor which means its registers are 16 bit wide. But its pointers (addresses) are 20 bit wide and were calculated by combining two 16 bit registers in a certain way. What Is a Bit and How Many Bits Are in a Byte? | eHow What Is a Bit and How Many Bits Are in a Byte?  Email Save A bit is short for a binary digit.

In a binary system, only two digits exist: 1 and 0, as opposed to the decimal system, which has 10 digits from 0 to 9. The binary system was adapted in computers because data can simply be represented in 1's and 0's and it can easily be converted to represent electrical signals with 0 considered as an "off state" and 1 as an "on state." One byte is equivalent to 8 bits. Differentiating Number Systems Four major number systems are in general use. The one we use commonly is the decimal system, which has 10 digits. Another is the octal system, which has eight digits that go from 0 to 7. The hexadecimal system has 16 digits and goes from 0 to 9, then A to E. The last one is the binary system, which has 0 and 1. The binary system is in base 2, which when converted to the decimal system is 2 raised to the nth power; this is important in understanding storage sizes in computers. Using Binary in Computers The binary system was used in computers because it provides the easiest way of converting digital signals to electrical signals and vice versa.

This allows hardware devices and software applications to interact with each other. Letters, numbers and other symbols can be translated into binary representations, which the hardware can then read and transmit through physical devices such as wires and cables. Bits and Bytes You might wonder why 8 bits or a byte is used instead of something else. This is because the earliest computers could process only 8 bits of data at a time. As computers became faster and more advanced, the idea of a byte stuck. A single byte of data can be from 00000000 to 11111111, which when converted to decimal goes from 0 to 255. In computer symbols, a bit is represented with a lowercase letter "b" while a byte is represented with an uppercase letter "B." Understanding Computer Measurements Hard disk spaces, file and memory sizes are often measured in kilobytes, megabytes and gigabytes. A kilobyte is not exactly 1,000 bytes. Recall that when converting bits to decimal numbers, it's 2 raised to the nth power. A kilobyte is actually 1,024 bytes, which is 2 to the 10th power.

Similarly, 1MB is not a million bytes but 1,048,576 bytes, or 2 to the 20th power. One gigabyte is not exactly one billion bytes, but 1,073,741,824, or 2 to the 30th power. How much is 1 byte, kilobyte, megabyte, gigabyte, etc.? You are here: Help > Computer Storage How much is 1 byte, kilobyte, megabyte, gigabyte, etc.? Below is a list of each of the accepted disk drive space values. It is important to realize that not all manufacturers and developers use binary base 2. For example, a manufacturer may list a product's capacity as one gigabyte (1,000,000,000 bytes, a metric value) and not 1,073,741,824 bytes ( gibibyte ) that it actually is. For this page, we are using the "common names" and listing all values in base 2.

Note: All values are whole numbers , which means a GB shows it can only contain one 650MB CD, but 1GB could hold 1.5753... of a 650MB CD. Since we created this document to illustrate how much each value can contain in whole, no decimal values are shown. In other words, you can only fit one complete 650MB CD on a 1GB drive since two full 650MB discs exceed 1GB. Tip: With the exception of a bit and a nibble, all values explained below are in bytes and not bits. For example, a Kilobyte (KiB) is different than a Kilobit (Kb). When referring to storage, bytes are used. When referring to transmission speeds, bits are used. Bit A bit is a value of either a 1 or 0 (on or off). Nibble A Nibble is 4 bits. Byte Today, a Byte is 8 bits. 1 character , e.g. "a", is one byte. Kilobyte (KB) A Kilobyte is 1,024 bytes. 2 or 3 paragraphs of text.

Megabyte (MB) A Megabyte is 1,048,576 bytes or 1,024 Kilobytes 873 pages of plaintext (1,200 characters) 4 books (200 pages or 240,000 characters) Gigabyte (GB) A Gigabyte is 1,073,741,824 (230) bytes. 1,024 Megabytes, or 1,048,576 Kilobytes.

894,784 pages of plaintext (1,200 characters) 4,473 books (200 pages or 240,000 characters) 640 web pages (with 1.6MB average file size) 341 digital pictures (with 3MB average file size) 256 MP3 audio files (with 4MB average file size) A Terabyte is 1,099,511,627,776 (240) bytes, 1,024 Gigabytes, or 1,048,576 Megabytes.

916,259,689 pages of plaintext (1,200 characters) 4,581,298 books (200 pages or 240,000 characters) 655,360 web pages (with 1.6MB average file size) 349,525 digital pictures (with 3MB average file size) 262,144 MP3 audio files (with 4MB average file size) 1,613 650MB CD's A Petabyte is 1,125,899,906,842,624 (250) bytes, 1,024 Terabytes, 1,048,576 Gigabytes, or 1,073,741,824 Megabytes.

938,249,922,368 pages of plaintext (1,200 characters) 4,691,249,611 books (200 pages or 240,000 characters) 671,088,640 web pages (with 1.6MB average file size) 357,913,941 digital pictures (with 3MB average file size) 268,435,456 MP3 audio files (with 4MB average file size) 1,651,910 650MB CD's An Exabyte is 1,152,921,504,606,846,976 (260) bytes, 1,024 Petabytes, 1,048,576 Terabytes, 1,073,741,824 Gigabytes, or 1,099,511,627,776 Megabytes.

960,767,920,505,705 pages of plaintext (1,200 characters) 4,803,839,602,528 books (200 pages or 240,000 characters) 687,194,767,360 web pages (with 1.6MB average file size) 366,503,875,925 digital pictures (with 3MB average file size) 274,877,906,944 MP3 audio files (with 4MB average file size) 1,691,556,350 650MB CD's 42,949,672 25GB Blu-ray discs Zettabyte (ZB) A Zettabyte is 1,180,591,620,717,411,303,424 (270) bytes, 1,024 Exabytes, 1,048,57

6 Petabytes, 1,073,741,824 Terabytes, 1,099,511,627,776 Gigabytes, or 1,125,899,910,000,000 Megabytes.

983,826,350,597,842,752 pages of plaintext (1,200 characters) 4,919,131,752,989,213 books (200 pages or 240,000 characters) 703,687,443,750,000 web pages (with 1.6MB average file size) 375,299,970,000,000 digital pictures (with 3MB average file size) 281,474,977,500,000 MP3 audio files (with 4MB average file size) 1,732,153,707,691 650MB CD's 43,980,465,111 25GB Blu-ray discs Yottabyte (YB) A Yottabyte is 1,208,925,819,614,629,174,

706,176 (280) bytes, 1,024 Zettabytes, 1,048,576 Exabytes, 1,073,741,824 Petabytes, 1,099,511,627,776 Terabytes, 1,125,899,910,000,000 Gigabytes, or 1,152,921,500,000,000,000 Megabytes.

1,007,438,183,012,190,978,921 pages of plaintext (1,200 characters) 5,037,190,915,060,954,894 books (200 pages or 240,000 characters) 720,575,937,500,000,000 web pages (with 1.6MB average file size) 384,307,166,666,666,666 digital pictures (with 3MB average file size) 288,230,375,000,000,000 MP3 audio files (with 4MB average file size) 1,773,725,384,615,384 650MB CD's 45,035,996,273,704 25GB Blu-ray discs Is there anything bigger than a Yottabyte

?

As of 2015, there are no approved standard sizes for anything bigger than a Yottabyte. However, the two standards that have been proposed are the Hellabyte or Brontobyte . How are you calculating the above values? Calculating the above values is simple once you know the values of each of the above sizes. For example, in the Gigabyte section above, we know that 1 gigabyte is equal to 1,024 Megabytes. Therefore to determine how many 4MB MP3 files are in a Gigabyte, we take 1,024 / 4 which equals 256 or 256 4MB MP3 files in one gigabyte. Tip: You can also use our search engine to search engine and our conversion tool also to convert and compare between values. How Bits and Bytes Work | HowStuffWorks How Bits and Bytes Work NEXT PAGENEXT If you have used a computer for more than five minutes, then you have heard the words bits and bytes. Both RAM and hard disk capacities are measured in bytes, as are file sizes when you examine them in a file viewer.

You might hear an advertisement that says, "This computer has a 32-bit Pentium processor with 64 megabytes of RAM and 2.1 gigabytes of hard disk space." And many HowStuffWorks articles talk about bytes (for example, How CDs Work ). In this article, we will discuss bits and bytes so that you have a complete understanding. Related Links The Basics of C Programming Decimal Numbers The easiest way to understand bits is to compare them to something you know: digits. A digit is a single place that can hold numerical values between 0 and 9. Digits are normally combined together in groups to create larger numbers. For example, 6,357 has four digits. It is understood that in the number 6,357, the 7 is filling the "1s place," while the 5 is filling the 10s place, the 3 is filling the 100s place and the 6 is filling the 1,000s place.

So you could express things this way if you wanted to be explicit: (6 * 1000) + (3 * 100) + (5 * 10) + (7 * 1) = 6000 + 300 + 50 + 7 = 6357 Another way to express it would be to use powers of 10. Assuming that we are going to represent the concept of "raised to the power of" with the "^" symbol (so "10 squared" is written as "10^2"), another way to express it is like this: (6 * 10^3) + (3 * 10^2) + (5 * 10^1) + (7 * 10^0) = 6000 + 300 + 50 + 7 = 6357 What you can see from this expression is that each digit is a placeholder for the next higher power of 10, starting in the first digit with 10 raised to the power of zero. ­That should all feel pretty comfortable -- we work with decimal digits every day.

The neat thing about number systems is that there is nothing that forces you to have 10 different values in a digit. Our base-10 number system likely grew up because we have 10 fingers, but if we happened to evolve to have eight fingers instead, we would probably have a base-8 number system. You can have base-anything number systems. In fact, there are lots of good reasons to use different bases in different situations. Computers happen to operate using the base-2 number system, also known as the binary number system (just like the base-10 number system is known as the decimal number system). Find out why and how that works in the next section.

1 Bit and Byte Conversion 1 kilobyte (K / Kb) = 2^10 bytes = 1,024 bytes 1 megabyte (M / MB) = 2^20 bytes = 1,048,576 bytes 1 gigabyte (G / GB) = 2^30 bytes = 1,073,741,824 bytes 1 terabyte (T / TB) = 2^40 bytes = 1,099,511,627,776 bytes 1 petabyte (P / PB) = 2^50 bytes = 1,125,899,906,842,624 bytes 1 exabyte (E / EB) = 2^60 bytes = 1,152,921,504,606,846,976 bytes The period (.) is used as decimal separator. Data Transmission conversion (kilobit): In data communications, a kilobit is a thousand bits, or 1,000 (103) bits.

It's commonly used for measuring the amount of data that is transferred in a second between two telecommunication points. Kilobits per second is usually shortened to Kbps. Some sources define a kilobit to mean 1,024 (that is, 210) bits. Although the bit is a unit of the binary number system, bits in data communications are discrete signal pulses and have historically been counted using the decimal number system. For example, 28.8 kilobits per second (Kbps) is 28,800 bits per second. Because of computer architecture and memory address boundaries, bytes are always some multiple or exponent of two. COMPUTER MEMORY: Bits and Bytes The Decimal System is a base 10 number system that uses ten digits (0,1,2,3,4,5,6,7,8,9). 1000 is attained as follows: 1 x10 = 10 x 10 = 100 x 10 = 1000 (kilo) The Binary System is a base 2 number system that uses only two (bi) numbers or digits (0 and 1) to represent all values.

The unit closest to 1000 is attained as follows: 1 byte x 2 = 2 x 2 = 4 SmartFTP - Bits, Bytes, Mega, Giga, Tera (explained) Bits, Bytes, Mega, Giga, Tera (explained) 1 bit = a 1 or 0 (b) 4 bits = 1 nybble (?) 8 bits = 1 byte (B) 1024 bytes = 1 Kilobyte (KB) 1024 Kilobytes = 1 Megabyte (MB) 1024 Megabytes = 1 Gigabyte (GB) 1024 Gigabytes = 1 Terabyte (TB) Common prefixes: - kilo, meaning 1,000. (one thousand) 10^3 (Kilometer, 1,000 meters) - mega, meaning 1,000,000.

(one million) 10^6 (Megawatt, 1,000,000 watts) - giga, meaning 1,000,000,000 (one billion) 10^9 (Gigawatt, 1,000,000,000 watts) - tera, meaning 1,000,000,000,000 (one trillion) 10^12 The smallest amount of transfer is one bit. It holds the value of a 1, or a 0. (Binary coding). Eight of these 1's and zero's are called a byte. Why eight? The earliest computers could only send 8 bits at a time, it was only natural to start writing code in sets of 8 bits. This came to be called a byte. A bit is represented with a lowercase "b," whereas a byte is represented with an uppercase "b" (B). So Kb is kilobits, and KB is kilobytes. A kilobyte is eight times larger than a kilobit.

A simple 1 or 0, times eight of these 1's and 0's put together is a byte. The string of code: 10010101 is exactly one byte. So a small gif image, about 4 KB has about 4000 lines of 8 1's and 0's. Since there are 8 per line, that's over (4000 x 8) 32,000 1's and 0's just for a single gif image. How many bytes are in a kilobyte (KB)? One may think it's 1000 bytes, but its really 1024. Why is this so? It turns out that our early computer engineers, who dealt with the tiniest amounts of storage, noticed that 2^10 (1024) was very close to 10^3 (1000); so based on the prefix kilo, for 1000, they created the KB. (You may have heard of kilometers (Km) which is 1000 meters).

So in actuality, one KB is really 1024 bytes, not 1000. It's a small difference, but it adds up over a while. The MB, or megabyte, mega meaning one million. Seems logical that one mega (million) byte would be 1,000,000 (one million) bytes. It's not however. One megabyte is 1024 x 1024 bytes. 1024 kilobytes is called one Megabyte. So one kilobyte is actually 1024 bytes, and 1024 of those is (1024 x 1024) 1048576 bytes. In short, one Megabyte is really 1,048,576 bytes. There is a difference of about 48 KB, which is a decent amount. If you have a calculator, you will notice that there is actually a 47KB difference. There is a difference of 48,576 bytes, divided by 1024, and you get the amount of real kilobytes...

47.4375 All of this really comes into play when you deal with Gigabytes, or roughly one billion bytes. One real Gigabyte is actually 1024 bytes x 1024 bytes x 1024 bytes...1,073,741,824. However, most people like to simplify this by simply saying that one Gigabyte is only 1,000,000,000 (one billion) bytes; which makes sense because the prefix Giga means one billion. References

Question: In computing, how many bits are in one byte?
Answer: 8