. 4 :
, .
. .
dir. Windows Commander , , .
DOS, io.sys, msdos.sys, command.com ..
, . (. 2) , . .
. 2
. , Alt+F7. (. 3) . , . Enter .
. 3
.
Shift | Alt | Ctrl | ||
F1 | / | |||
F2 | / | |||
F3 | ||||
F4 | ||||
F5 | ||||
F6 | (NTFS) | |||
F7 | ||||
F8 | ||||
F9 | ||||
F10 | ||||
F11 | ||||
F12 |
.
Ctrl+O /
Ctrl+U
Ctrl+E
Ctrl+P /
Ctrl+L /
Ctrl+Q /
Ctrl+N /
Ctrl+R
Ctrl+A
Ctrl+ /
MATHCAD
80- MathCAD, MathSoft () [1,2]. , . . MathCad 2000 professional.
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