Video: Leej twg invented tus lej keypad?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Txawm li cas los xij, nws tsis yog txog xyoo 1844 uas yog ib tug neeg Fab Kis los ntawm lub npe ntawm Jean-Baptiste Schwilguć tuaj nrog thawj tus qauv ua haujlwm ntawm lub tshuab xam zauv tseem ceeb. Lub tshuab no siv thawj zaug tus lej keyboard nrog ib kab ntawm cov yuam sij uas nce ntawm 1 txog 9 (Dalakov, 2018).
Tsuas yog li ntawd, thaum twg yog 10 tus yuam sij invented?
David Sundstrand (1880-1930) yog ib tug Swedish-yug Americaninventor ntawm lub 10 - tus yuam sij ntxiv tshuab, 10 - tus yuam sij lub laij lej keyboard, a 10 -keypad tam sim no siv rau ntawm cov keyboards hauv computer, thiab tus tsim ntawm SundstrandCorporation. Nws 1914 ntxiv tshuab muaj thawj qhov chaw tam sim no rau 10 - tus yuam sij tshuab xam zauv thiab numerickeypads.
Tsis tas li ntawd, muaj pes tsawg tus lej yuam sij nyob rau ntawm tus lej keypad? 17
Tsuas yog li ntawd, kuv yuav siv tus lej keypad li cas?
Txhawm rau qhib lub tooj pad , nrhiav cov tus lej lock key (feem ntau yog sau NumLock, Tus lej Lk, lub Tus lej ). Tej zaum koj yuav tau nias Fn lossis Shift yuam sij kom nws ua haujlwm. Tam sim no, cov yuam sij yuav ua haujlwm raws li tus tus lej keypad rau koj lub laptop. Tsuas yog nias lub tus lej xauv dua kom tig qhov no tawm.
Koj puas xav tau tus lej keypad?
Numeric keypad . Xwb hu ua 10-key, tooj pad , tus lej keyboard, numpad , los yog kaum key, lub tus lej keypad yog 17-key keypad feem ntau pom nyob rau sab xis ntawm tus qauv PC keyboard. A tus lej keypad kuj tseem yuav yog ib qho khoom sib cais uas tuaj yeem txuas rau lub computer.
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