The fourth generation of the Intel x86 family of CPU chips. The term may refer to the chip or to a PC that used it. Introduced in 1989, it was the successor to the 386 and the first chip in the line to include a built-in math coprocessor. Providing acceptable performance for DOS, it was bare minimum for Windows. Later versions of the chip doubled and tripled internal speeds (see DX2 and DX4). See OverDrive CPU, PC and x86.
Technical Specs
Type: 32-bit multitasking microprocessor
Transistors: 1,100,000 to 1,200,000 (1.0 micron)
Package: 168 or 169-pin PGA
Registers: 32 32-bit
Real Mode: Performs as a 16-bit 8086 CPU; addresses 1MB memory.
Protected Mode: Addresses 4GB physical and 64TB virtual memory; provides access to memory protection and 32-bit instructions.
Virtual 8086 Mode: Protected Mode subset that runs a Real Mode application in a virtual machine.
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| Millennium: | 1st millennium |
|---|---|
| Centuries: | 4th century – 5th century – 6th century |
| Decades: | 450s 460s 470s – 480s – 490s 500s 510s |
| Years: | 483 484 485 – 486 – 487 488 489 |
| 486 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 486 CDLXXXVI |
| Ab urbe condita | 1239 |
| Armenian calendar | N/A |
| Assyrian calendar | 5236 |
| Bahá'í calendar | -1358–-1357 |
| Bengali calendar | -107 |
| Berber calendar | 1436 |
| English Regnal year | N/A |
| Buddhist calendar | 1030 |
| Burmese calendar | -152 |
| Byzantine calendar | 5994–5995 |
| Chinese calendar | 乙丑年十二月初十日 (3122/3182-12-10) — to —
丙寅年十一月二十日(3123/3183-11-20) |
| Coptic calendar | 202–203 |
| Ethiopian calendar | 478–479 |
| Hebrew calendar | 4246–4247 |
| Hindu calendars | |
| - Vikram Samvat | 542–543 |
| - Shaka Samvat | 408–409 |
| - Kali Yuga | 3587–3588 |
| Holocene calendar | 10486 |
| Iranian calendar | 136 BP – 135 BP |
| Islamic calendar | 140 BH – 139 BH |
| Japanese calendar | |
| Julian calendar | 486 CDLXXXVI |
| Korean calendar | 2819 |
| Minguo calendar | 1426 before ROC 民前1426年 |
| Thai solar calendar | 1029 |
| Wikimedia Commons has media related to: 486 |
Year 486 (CDLXXXVI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Basilius and Longinus (or, less frequently, year 1239 Ab urbe condita). The denomination 486 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
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