KB and also kB refer to kilobyte - a unit of info or computer storage equal to either 1,024 bytes (210) or 1,000 bytes (103), relying on context.
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MB describes megabyte - a unit of info or computer storage same to one of two people 1,048,576 bytes (220) or 1,000,000 bytes (106), depending on context. A megabyte has around 1,000 (or 1,024 to be precise) kilobytes.
Comparison chart
| Kilobyte | Megabyte |
Difference in between kB and kb, MB and Mb
kb is kilobits and kB is kilobytes. If MB is megabytes, Mb describes Megabits. 1 byte has actually 8 bits. Record sizes space usually express in KB and also MB vice versa, kb and Mb are often used come express data carry speeds (such as a 54 Mbps wireless router or 3G or 4G link speeds).
All units of details volume
A bit is the smallest unit of information. The is either a 0 or 1. A byte is the following smallest unit, and also is equal to 8 bits. All other units of info are acquired from bits and also bytes, and represent a certain variety of bits (or bytes).
Each unit has a prefix and suffix. The suffix denotes whether the unit is representing bits or bytes; the prefix denotes how countless bits/bytes are being conveyed. There are two species of prefixes:
Kilo-, mega-, giga-, tera-, peta-: these are the prefixes most widely used. They denote aggregations in devices of 1,000. Kilo- is 10001 Mega- is 10002 i.e., 1 million Giga- is 10003 i.e., 1 exchange rate Tera- is 10004 i.e., 1 sunshine Peta- is 10005 i.e., 1 quadrillion Kibi-, mebi-, gibi-, tebi-, pebi-:these prefixes denote aggregations in systems of 1024. Since computing supplies a binary system, the totals for units of warehouse are constantly in strength of 2. 1024 is 210. Kibi- is 10241 Mebi- is 10242 Gibi- is 10243 Tebi- is 10244 Pebi- is 10245Applying this sample we can see that
| Kilobit (Kb or kb) | 1000 | 1 | 1000 bits |
| Megabit (Mb) | 1000 | 2 | 10002 bits; or 1000 kilobits |
| Gigabit (Gb) | 1000 | 3 | 10003 bits; or 1000 megabits |
| Terabit (Tb) | 1000 | 4 | 10004 bits; or 1000 gigabits |
| Kilobyte (KB or kB) | 1000 | 1 | 1000 bytes |
| Megabyte (MB) | 1000 | 2 | 10002 bytes; or 1000 kilobytes |
| Gigabyte (GB) | 1000 | 3 | 10003 bytes; or 1000 megabytes |
| Terabyte (TB) | 1000 | 4 | 10004 bytes; or 1000 gigabytes |
| Kibibyte (KiB) | 1024 | 1 | 1024 bytes |
| Mebibyte (MiB) | 1024 | 2 | 10242 bytes; or 1024 kibibytes |
| Gibibyte (GiB) | 1024 | 3 | 10243 bytes; or 1024 mebibytes |
| Tebibyte (TiB) | 1024 | 4 | 10244 bytes; or 1024 gibibytes |
Kbps vs. Mbps and Other Data rate Units
Data rate units are represented as info per second. Because that example, Kilobits per second uses the symbol kbps, kbit/s or kb/s; Kilobytes every second is created as kB/s and also Mbps represents Megabit per second.
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The notation complies with this convention:
usage lower-case b for bits and upper-case B for bytes. E.g. MB/s is megabyte per second and Mbps is megabit every second. K stands for kilo and may be used in top or reduced case. M stands for mega, G because that giga, T because that tera. Therefore 1 Gbps is 1 gigabit per second. These units are aggregated in multiples the 1000. Ki means kibi, therefore KiB/s is kibibytes per second while Kib/s or Kibit/s is kibibit every second. Likewise Mi represents Mebi, Gi for Gibi, and Ti because that Tebi. The units are aggregated in powers of 2, especially 210.| bit/s | bit per second | 1 |
| B/s | byte every second | 8 |
| kbit/s | kilobit every second | 1,000 |
| Kibit/s | kibibit per second | 1,024 |
| kB/s | kilobyte every second | 8,000 |
| KiB/s | kibibyte per second | 8,192 |
| Mbit/s | megabit every second | 1,000,000 |
| Mibit/s | mebibit per second | 1,048,576 |
| MB/s | megabyte every second | 8,000,000 |
| MiB/s | mebibyte every second | 8,388,608 |
| Gbit/s | gigabit per second | 1,000,000,000 |
| Gibit/s | gibibit per second | 1,073,741,824 |
| GB/s | gigabyte per second | 8,000,000,000 |
| GiB/s | gibibyte every second | 8,589,934,592 |
| Tbit/s | terabit every second | 1,000,000,000,000 |
| Tibit/s | tebibit every second | 1,099,511,627,776 |
| TB/s | terabyte every second | 8,000,000,000,000 |
| TiB/s | tebibyte per second | 8,796,093,022,208 |