Intel i7-6700 3.4 ( 4.0) / 8Gb  / 500Gb 7200rpm/ DVD+/-RW / W10dgW7p64 

Intel Pentium G3250 1.7   /  4Gb  / 500Gb 7200rpm/  Free DOS 

Intel i5-4590 3.3 ( 3.7) / 4Gb  / 1Tb 7200rpm/ DVD+/-RW / Free DOS / MCR

Intel  E3-1240v5 Xeon 3.5 ( 3.9 ) / 16Gb /  256Gb SSD /  W7 W10 Pro 64bit/ NVIDIA Quadro K2200 (4 GB GDDR5 SDRAM).

Intel i7-4790S 3,2 ( 4.0)  /  4Gb  / 500Gb 7200rpm/ DVD+/-RW / Free DOS / Monitor  HP W2072a  20"

280G2MT / HE EStar / i3-6100 / 4GB / 500GB 7200 / DOS / SuperMulti DVDRW / 1yw / USBkbd / USBmouse

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Dell Optiplex 7020MT|i3-4160|Ubuntu|4GB|500GB|Int.Graphics|BRZ (CA004D7020MT1H16EDB_Ubu)

APC Smart-UPS Online 8KVA, 6x C13/4x C19, USB/Network, 8KW, Tower/RM Optional with AP9625/SRTRK2