Refers to a device for performing arithmetic calculations, from simple pocket calculators to more complex desktop models.
Bringing a calculator into the exam is allowed.
He checked the total with a calculator.
Abbreviation of 電子計算機 (electronic computer). Now somewhat dated; コンピューター is the usual modern term. Still seen in older texts or formal/technical contexts.
See also: 電子計算機
Early computers were the size of a whole room.
This computer can process large amounts of data.
電卓 refers specifically to a small handheld or desktop calculator, while 計算機 is a broader term that can also include large computing machines.
Standard kanji spelling for both calculator and computer senses.
Alternate kanji form using 器 (utensil/device) instead of 機 (machine). Less common.
Compound of 計算 (calculation) and 機 (machine). The computer sense is an abbreviation of 電子計算機 (electronic computer).
object computer
source computer; translation computer