Definition - What does Megabit (Mb) mean?
Megabit (Mb) is a data measurement unit applied to digital computer or media storage. One Mb equals one million (1,000,000 or 106) bits or 1,000 kilobits (Kb). The International System of Units (SI) defines the mega prefix as a 106 multiplier or one million (1,000,000) bits. The binary mega prefix is 1,048,576 bits or 1,024 Kb. The SI and binary differential is approximately 4.86 percent.
Techopedia explains Megabit (Mb)
Central processing units (CPU) are built with data control instructions for bits--the smallest data measurement unit. Bits are magnetized and polarized binary digits that represent stored digital data in random access memory (RAM) or read-only memory (ROM). A bit is measured in seconds and characterized by high-voltage 0 (on) or 1 (off) values. Mb continue to apply to a number of measurement contexts, including: Internet/Ethernet data: Download and data transfer rate (DTR) speeds as megabits per second (Mbps). Data storage: 16-bit game cartridges with eight-Mb storage, including Mega Drive (Genesis) and Super Nintendo Entertainment System (SNES). Random-access memory (RAM) and read only memory (ROM): For example, a double-data-rate three (DDR3) chip contains 512Mb. Web files transfer as megabytes (MB). For example, a network connection with an eight Mbps DTR must reach a Web DTR of one megabyte (MB) per second (MBps). In 2000, the Institute of Electrical and Electronics Engineers (IEEE) incorporated the International Electrotechnical Commission (IEC) formal approval of SI metric prefixes (for example, MB as one million bytes and KB as one thousand bytes). Newly added metric terms include: Kibibyte (KiB) equals 1,024 bytes. Mebibyte (MiB) equals 1,048,576 bytes. Gibibyte (GiB) equals 1,073,741,824 bytes.
"Techopedia" on Twitter
Sign up for Techopedia's Free Newsletter!
Join thousands of others with our weekly newsletter
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.