May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
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46
関連用語
用語に関連する話
用語の使用例
GPS
位 置 情 報を取 得できる
カーナビやスマホなどが 位 置情 報を取 得するために、衛星からの電 波信 号を使 用するし
くみ。複数の衛星との通信により受信機の位置を特定するため、海外の衛星だけでなく、
国 内 の 衛 星も組 み 合わ せて運 用され ている。信 号 の 時 間 差を使うため、正 確な時 刻 で
計 算 す ることが 重 要 となる 。
日本版GPSのみちびき
2017年に2号機から4号機が打ち
上げられた GPS 衛星に「みちびき」
があり、2018年11月から4機体制
で運用されている。日本国内での
精度の向上が期待されている。
Wi-Fiでの位置情報取得
無線LAN のアクセスポイントを
使用することで、その電波の強さ
などから位置情報を割り出すこ
とができ、GPS の電波が届かない
場所でも使用できる。
超音波での測位も使われる
人の耳では聞き取れない超音波
を店舗などに設置した機器で発
信し、スマホなどのマイクで受信
することで位置を割り出す方法
もあり、店内などで使われる。
ドローン
……P21
シンギュラリティ
……P24
機械学習
……P27
「GPSの精度が上がって、スマホがあれば道に迷わなくなったね。」
Keyword
033
▶
じーぴーえす
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.