NXTSTP s dscntnd bjct-rntd, mlttskng prtng systm bsd n th Mch krnl nd th NX-drvd BSD. t ws dvlpd by NXT Cmptr, fndd by Stv Jbs, n th lt 1980s nd rly 1990s nd ws ntlly sd fr ts rng f prprtry wrksttn cmptrs sch s th NXTcb. t ws ltr prtd t svrl thr cmptr rchtctrs.
lthgh rltvly nsccssfl t th tm, t ttrctd ntrst frm cmptr scntsts nd rsrchrs. t hstd th rgnl dvlpmnt f th lctrnc ppWrppr, th frst cmmrcl lctrnc sftwr dstrbtn ctlg t cllctvly mng ncryptn nd prvd dgtl rghts fr pplctn sftwr nd dgtl md, frrnnr f th mdrn "pp str" cncpt. t s th pltfrm n whch Tm Brnrs-L crtd th frst wb brwsr, nd n whch d Sftwr dvlpd th vd gms Dm nd Qk.
n 1996, ppl Cmptr cqrd NXT. ppl ndd sccssr t th clssc Mc S, nd mrgd NXTSTP nd pnStp wth th Mcntsh sr nvrnmnt t crt Mc S X. ll f ppl's sbsqnt pltfrms snc Phn S 1 wr thn bsd n Mc S X (ltr rnmd mcS).