486 ==>
Intel 486
<processor> (Or "i486", "iAPX 80486", and "Intel DX4" but
usually just "486"). A range of Intel CISC
microprocessors which is part of the Intel 80x86 family of
processors.
The 486s are very similar to their immediate predecessor, the
Intel 80386DX. The main differences are that the 486 has an
optimised instruction set, has an on-chip unified
instruction and data cache, an optional on-chip
floating-point unit (FPU), and an enhanced bus interface
unit. These improvements yield a rough doubling in
performance over an Intel 80386 at the same clock rate.
There are several suffixes and variants including:
Intel 486SX - a 486DX with its FPU disabled (see
crippleware).
Intel 486DX - 486SX with a working FPU.
486DX-2 - runs at twice the external clock rate.
486SX-2 - runs at twice the external clock rate.
486SL - 486DX with power conservation circuitry.
486SL-NM - 486SX with power conservation circuitry; SL
enhanced suffix, denotes a 486 with special power conservation
circuitry similar to that in the 486SL processors.
487 - 486DX with a slightly different pinout for use in 486SX
systems.
OverDrive - 486DX-2 with a slightly different pinout for use
in 486SX systems.
RapidCAD - 486DX in a special package with a companion FPU
dummy package for use in Intel 80386 systems.
Intel DX4, Cyrix Cy486SLC.
External clock rates include 16MHz, 20MHz, 25MHz, 33MHz,
40MHz, although 16Mhz is rare now, and the 20MHz processors
are often clock doubled.
The 486 processor has been licensed or reverse engineered by
other companies such as IBM, AMD, Cyrix, and Chips &
Technologies. Some are almost exact duplicates in
specications and performance, some aren't.
The successor to the 486 is the Pentium.
(1995-02-21)
Try this search on OneLook / Google
Nearby terms:
integrity constraint « Intel 4004 « Intel 4040 « Intel 486 » Intel 486DX » Intel 486SX » Intel 487SX
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
Samsung 48x IDE CD-ROM Drive (Black)Samsung 48x IDE CD-ROM Drive (Black) ** 48X Samsung IDE CD-ROM Drive **General Features:- Black Faceplate- Data Transfer Rate: 7,200KB/sec (48X)- Interface: IDE- Average Access Time: 80ms (1/3 stroke)- Buffer Memory: 128KB- Compatible with: CD-R/CD-RW, CD-DA, CD-ROM/XA, Video CD, CD-I, Multisession Photo- Loading Type: Motorized Tray Type- Volume Control Wheel- Headphone jack- Emergency Eject Hole- Model: SC-148-> Notes:- Bulk (Drive Only)- Samsung model #: SC-148- IBM part #: 33P3210 Compatibility/Requirements/Disclosures:** Requirements *** Available 5.25 Drive Bay * IDE Controller * Available Power Connector* IDE Cable -- NOT Included ** Disclosures *** This Samsung drive was OEM for IBM More ...
Slimline Twin Point Stylus and Pen ComboSlimline Twin Point Stylus and Pen Combo ** Slimline Twin Point Stylus and Pen Combo **A stylus and ball point pen for PDA's, its like having two pens in one. It features a convenient removable cap that protects the pen and a pocket clip for attachement to your PDA case or shirt! Order today!!General Features:- Dual function ball point pen and stylus in one- Removable cap protects pen- Metal pocket clip and stainless steel barrel- Fits securely inside compact PC companion stylus port- Fits securely inside Casio Cassiopeia Pocket PCUnit Dimensions:- 4.75 x .25 x .25-inches (H x W x D)Notes:- UPC: 0 92636 10600 3 Compatibility/Requirements/Disclosures: ** Requirements *** Compact PC companion stylus port* Casio Cassiopeia Pocket PC More ...
Perfect Scrapbook Maker ExpressPerfect Scrapbook Maker Express Create Dazzling Scrapbooks - Easy as 1, 2, 3! Browse and select from 800 templates, or create your own project from scratch. Customize your projects with your own photos, text, or video clips. Print your scrapbook or share it with your family and friends, via e-mail or on your website. Get Creative! Windows 98/ME/NT/2000/XP More ...
Teac 1.44MB Floppy Disk Drive (Black)Teac 1.44MB Floppy Disk Drive (Black) ** Teac 1.44 MB Floppy Drive **This Teac floppy drive offers 1.44 MB of capacity and a stylish black bezel. It's ideal for replacing an older floppy drive or adding a second drive. Get yours today! General Features:- Black bezel- 1.44 MB capacity- LED activity indicator- 3.5-inch form factorRegulatory Approvals:- UL- CSA- TUV- BSMINotes:- Drive only- Teac Model: FD-235HG- P/N: 193077C627 Compatibility/Requirements/Disclosures: ** Requirements *** Floppy controller* Floppy cable* Available 3.5-inch drive bay* Available 4-pin power connector More ...
HP LaserJet 1100 Laser Printer - No TonerHP LaserJet 1100 Laser Printer - No Toner ** HP LaserJet 1100 Laser Printer - No Toner **General Features:- Refurbished HP LaserJet 1100 Printer- 600x600 print resolution- Single paper tray holds up to 125 sheets- 8 ppm printing - Parallel interface- Toner Cartridge and scanner option are NOT IncludedNotes:- Toner Cartridge and scanner option are NOT Included More ...
Board GamesBoard Games It's you against the computer in this ultimate test of strategy and skill with 14 all-time favorite board games! Windows 98/ME/2000/XP More ...
|
