電でん源げん投とう入にゅう

Meanings

1

noun

power-up; power on

computing

Technical computing term for the act of turning on power to a device or system.

enter, insert

電でん源げん
電源 means 'power supply' or 'power source', while 電源投入 specifically refers to the action of turning on the power.
起き動どう
起動 means 'startup' or 'booting' of a system, often as a result of 電源投入.

Compound of 電源 (power source) and 投入 (input, insertion), literally 'power input'.