Giga- (/ ˈɡɪɡə / or / ˈdʒɪɡə /) is a unit prefix in the metric system denoting a factor of a short-scale billion or long-scale milliard (10 9 or 1,000,000,000). It has the symbol G. Giga- is derived from the Greek word γίγας (gígas), meaning "giant".

Kilo, mega, giga, tera, peta, exa and zetta are among the binary prefixes used to denote the quantity of something, such as a byte or bit in computing and telecommunications. Sometimes called prefix multipliers, these prefixes are also used in electronics and physics.

吉咖（英語： Giga ），简称吉，国际单位制词头，符号G，表示10 9 ，或十億 (1,000,000,000)。 《 牛津英语词典 》中提到，词头“Giga-”的最早使用是在1947年的第14届 国际纯粹与应用化学联合会 大会上：“以下单位词头的缩写应当被使用：G giga 10 9 ×。

Table of metric prefixes for SI units.

吉[咖]（giga），符号G表示，国际单位制词头之一，是表示数量的数词，代表 10的9次方，也就是十亿。

换算率约等于1000（1024），从大到小顺序为T、GB、MB（兆Zhao）、KB、B再小就是字节了。 二进制序列用以表示计算机、电子信息数据容量的量纲，基本单位为字节B，字节向上分别为KB、MB、GB、TB，每级为前一级的1024倍，比如1KB=1024B，1M=1024KB。 国际单位制不是计算机行业专用的，只是计算机把两个相邻词头间的换算关系,从1000变成了1024。 一、国际单位制 (SI) yotta 尧 [它] 10的24次方 zetta 泽 [它] 10的21次方 exa 艾 [可萨] 10的18次方 peta 拍 [它] …

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2025年1月11日 · giga- In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10 9 ( short scale billion or long scale milliard ). Symbol: G

2014年8月11日 · Prefixes for the powers of ten are grouped into sets of three zeros, with smaller increments near the number 1. Scientific notation is a useful means of writing out very large or very small numbers using powers of ten and exponents. Spelling out scientific notation numbers can be a mouthful.

From data storage to internet speeds, the term “giga-” has taken on a significant role in shaping our digital world. In this article, we will explore the meaning of “giga-” and its various applications, delve into real-world examples, address frequently asked questions, and even put your knowledge to the test with a quiz. I. Understanding “Giga-“: