Microprogram txhais
Microprogram tau xub pib los ntawm MV Wilkes, tus xibfwb ntawm University of Cambridge hauv tebchaws Askiv xyoo 1951. Nws yog ib txoj hauv kev los siv qhov haujlwm, tshwj xeeb sau cov tshuab kev qhia rau hauv microprogram. Txhua microprogram muaj ib tug xov tooj ntawm cov lus qhia me me, txhua tus sib raug rau ib lossis ntau cov microinstructions. Hauv cov system nrog microprogram, CPU muaj lub cim xeeb tswj sab hauv rau kev khaws cia microprogram ntu sib haum rau ntau lub tshuab cov lus qhia. Thaum lub CPU ua tiav cov kev qhia ntawm lub tshuab, nws tshawb rau lub micro program sib thooj rau kev qhia siv lub tshuab hauv kev tswj hwm lub cim xeeb, thiab coj tawm cov lus qhia micro sib txuas los tswj kev tua ntawm txhua qhov kev ua haujlwm micro, yog li ua tiav txoj haujlwm ntawm cov program. Microprogramming thev naus laus zis yog hais txog lub thev naus laus zis uas siv cov thev naus laus zis software los siv kev tsim kho vajtse.