IBM PC (International Business Machine) CISC, . 4.5.
4.5. CISC
: 1. 80386, 80486 SX, DX, SL . (80486SX, 80486DX), , , , , , : DX ; SX SL , , ; SL SLE , (Lap Top, Note Book).
2. , .
80486 DX . , DX2 2 , DX4 3 . , , , .
:
80386 . 2 - 3 ;
80286 ;
80286 () ;
80386 , .. , , ;
80286 : (Real mode) (Protected mode). () 8086, , . (. . 4.5) , , .
80586 (5) Pentium, Intel ( 80586 : 5 AMD, Ml Cyrix .).
, , - , ; RISC , . Pentium 32- 64- . 1 /.
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Pentium -, , ; , , .
Pentium Pro. 1995 . 80686 (6), Pentium Pro. . (dynamic execution), 14- (superpipelining), (branch prediction) (speculative execution).
. , , . (), . Pentium Pro 90 % 80 % Pentium.
- 256-512 Pentium. - (16 ), . , , 2 - 3 , . Pentium Pro - 256-512 .
OverDrive. OverDrive, , 80486 , Pentium. OverDrive, Pentium.