Search results
Results from the WOW.Com Content Network
ISA, 8-bit 5 2 Intel 8088: 4.77 16 KB 64 KB 320 KB none [6] [3]: 11-15 Personal Computer: 5150-074 Unknown March 1983: ISA, 8-bit 5 2 Intel 8088: 4.77 16 KB 64 KB two 320 KB none [6] [3]: 11-15 Personal Computer: 5150-X14 Unknown March 1983: ISA, 8-bit 5 2 Intel 8088: 4.77 16 KB 64 KB 160 KB none
The Intel 486, officially named i486 and also known as 80486, is a microprocessor introduced in 1989. It is a higher-performance follow-up to the Intel 386 . It represents the fourth generation of binary compatible CPUs following the 8086 of 1978, the Intel 80286 of 1982, and 1985's i386 .
The HandBook 486 also has a pointing device similar to the IBM trackpoint located on the right hand side of the keyboard just above the enter key. The Gateway HandBook remains one of the smallest laptops ever produced and was a precursor to Netbooks such as the Asus Eee PC , the Dell Inspiron Mini Series , and the Acer Aspire One .
Download as PDF; Printable version; In other projects ... (32-bit) x86 and (64-bit) ... new instruction mnemonics for 32-bit variants of older opcodes
Industry standard ISA/PCI architecture, [1] first IBM machines with USB.Processors ranged from the 486DX2-50, 486SX-25, 486DX4-100 to the Pentium 200 and in case of the Models 360 and 365 the Pentium Pro. 486 models had a selectable bus architecture (SelectaBus) through a replaceable riser-card, offering the choice of either VESA Local Bus/ISA or PCI/ISA.
The 486 and the Pentium demonstrated that this was indeed possible and feasible. 64-bit external databus doubles the amount of information possible to read or write on each memory access and therefore allows the Pentium to load its code cache faster than the 80486; it also allows faster access and storage of 64-bit and 80-bit x87 FPU data.
However, unlike the i386SX, which had a 16-bit external data bus and a 24-bit external address bus (compared to the fully 32-bit i386DX, its higher-cost counterpoint), the i486SX was entirely 32-bit. [ 1 ] : 117 The Intel486 SX-20 CPU can perform up 20 MIPS at 25 M Hz while this can also perform 70% faster than the 33 MHz Intel386 DX with ...
The ODPR chips had 168 pins and functioned as complete swap-out replacements for existing chips, whereas the ODP chips had an extra 169th pin, and were used for inserting into a special 'Overdrive' socket on some 486 boards, which would disable the existing CPU without needing to remove it (in case that the existing CPU is surface-mounted). ODP ...