MB is used to measure the volume of computer data. GHz is used in the measurement wavelength.
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MB stands for megabyte and is a unit of measurement for digital storage capacity, while GHz stands for gigahertz and is a unit of measurement for processor speed. MB measures the amount of data that can be stored, while GHz measures the speed at which a processor can execute instructions.
GHz refers to gigahertz, which measures the speed of a processor in cycles per second. GB, on the other hand, stands for gigabyte and measures the storage capacity of a device. In simple terms, GHz measures speed, while GB measures storage capacity.
DMA (Direct Memory Access) allows devices to transfer data directly to and from memory without involving the CPU. UDMA (Ultra DMA) is an improvement over DMA that increases data transfer speeds by using faster transfer modes and protocols.
The wavelength for 1 GHz is longer than the wavelength for 100 GHz. Wavelength is inversely proportional to frequency, so higher frequencies have shorter wavelengths.
M is a prefix that means "mega" which means million. There are a million bytes in a megabyte. A computer counts with 1024 b / kb, and the same for mb / gb and so on.1 Mb in a computer is equal to 1048576 bytesIn any system there will be overhead (block sizes, header tables, etc.) so the approximation of 1 million for 1024×1024 might hold but it might be too high too!You will not be able to put a file that is exactly 1048576 bytes on a memory stick that is advertised as capable of holding 1 Mb.
1 GHz is equal to 1,000,000,000 Hz.