SI prefixes are symbols or word elements placed before SI unit names to concisely express orders of magnitude. For example, k (kilo) means 10³, M (mega) means 10⁶, G (giga) means 10⁹, and n (nano) means 10⁻⁹. They are widely used in IT contexts such as storage capacity and communication speeds.

Past questions testing this term · 1 questions

• 2019h31h #66値の小さな数や大きな数を分かりやすく表現するために，接頭語が用いられる。例えば，10⁻³と10⁵を表すのに，それぞれ“m”と“k”が用いられる。10⁻⁹と10⁹…