Was ist größer MB oder KB

KB and kB refer to kilobyte - a unit of information or computer storage equal to either 1,024 bytes (210) or 1,000 bytes (103), depending on context.

MB refers to megabyte - a unit of information or computer storage equal to either 1,048,576 bytes (220) or 1,000,000 bytes (106), depending on context. A megabyte has approximately 1,000 (or 1,024 to be precise) kilobytes.

Comparison chart

Difference between kB and kb, MB and Mb

kb is kilobits and kB is kilobytes. While MB is megabytes, Mb refers to Megabits. 1 byte has 8 bits. File sizes are usually expressed in KB and MB whereas kb and Mb are often used to express data transfer speeds (such as a 54 Mbps wireless router or 3G or 4G connection speeds).

All units of information volume

A bit is the smallest unit of information. It is either a 0 or 1. A byte is the next smallest unit, and is equal to 8 bits. All other units of information are derived from bits and bytes, and represent a certain number of bits (or bytes).

Each unit contains a prefix and suffix. The suffix denotes whether the unit is representing bits or bytes; the prefix denotes how many bits/bytes are being conveyed. There are two types of prefixes:

• Kilo-, mega-, giga-, tera-, peta-: these are the prefixes most widely used. They denote aggregations in units of 1,000.
  • Kilo- is 10001
  • Mega- is 10002 i.e., 1 million
  • Giga- is 10003 i.e., 1 billion
  • Tera- is 10004 i.e., 1 trillion
  • Peta- is 10005 i.e., 1 quadrillion
• Kibi-, mebi-, gibi-, tebi-, pebi-:these prefixes denote aggregations in units of 1024. Since computing uses a binary system, the totals for units of storage are always in powers of 2. 1024 is 210.
  • Kibi- is 10241
  • Mebi- is 10242
  • Gibi- is 10243
  • Tebi- is 10244
  • Pebi- is 10245

Applying this pattern we can see that

Kbps vs. Mbps and Other Data Rate Units

Data rate units are represented as information per second. For example, Kilobits per second uses the symbol kbps, kbit/s or kb/s; Kilobytes per second is written as kB/s and Mbps stands for Megabit per second.

The notation follows this convention:

• Use lower-case b for bits and upper-case B for bytes. e.g. MB/s is megabyte per second and Mbps is megabit per second.
• K stands for kilo and may be used in upper or lower case. M stands for mega, G for giga, T for tera. So 1 Gbps is 1 gigabit per second. These units are aggregated in multiples of 1000.
• Ki stands for kibi, so KiB/s is kibibytes per second while Kib/s or Kibit/s is kibibit per second. Similarly Mi stands for Mebi, Gi for Gibi, and Ti for Tebi. The units are aggregated in powers of 2, specifically 210.

References

• //en.wikipedia.org/wiki/Kilobyte
• //en.wikipedia.org/wiki/Data-rate_units

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