4850 EP  (250-5143)             Features                Faxback Doc. # 1092

The Tandy 4850 EP delivers IBM PC/AT compatibility in a high-performance
environment. It features the 50 MHz INTEL 486 DX2 CPU (central processing
unit) with a 32-bit bus. You can run popular software packages with the
industry-standard architecture (ISA) expansion options. Many advanced 
features are standard on the Tandy 4850 EP. These features and many options 
are listed below.

*50 MHz INTEL 486 DX2 CPU

Provides superior performance with an internal processing power of 50 MHz
while maintaining an external CPU bus speed of 25 MHz. The microprocessor 
also features an on-chip floating-point unit (FPU) for built-in math
coprocessing functionality.

*8 KB Internal Cache

Features an integrated 8 KB cache (CACHE485). This cache is organized in a
4-way set-associative design that greatly enhances the performance of many
common applications. CACHE485 used a write-through caching scheme to ensure
data reliability.

*Built-in math coprocessor

The on-chip floating-point unit (FPU) operates in parallel with the 
arithmetic and logic unit and provides arithmetic instructions for a 
variety of numeric data types.

*Phoenix BIOS and Industry Standard Architecture (ISA)

Ensures compatibility with software and hardware built to the IBM standard 
for PC/AT. Three 16-bit ISA expansion slots operate at a standard 8.33 MHz speed.

*MS-DOS, Novell, UNIX, XENIX, and MS-OS/2 compatibility.

Lets you choose the operating system that best supports your needs.

*101-key Enhanced Keyboard.

Makes typing easy by featuring auto-repeat to reduce the number of multiple
keystrokes.

*High-capacity, 3 1/2" diskette drive.

Enables you to read and write both standard-density (720 KB) and 
high-density (1.44 MB), 3 1/2" diskettes.

*Built-in 16-bit IDE (SmartDrive) hard drive interface.

Enables you to quickly add hard disk storage. SmartDrives use an integrated
controller to provide maximum performance and compatibility at a lower cost
than other drive/controller combinations. The IDE interface supports up to 
two SmartDrives.

*Three Drive Bays

Enable you to install hard drives, diskette drives, tape cartridge systems, 
or CD-ROM drives.

*3 1/2" 120 MB SmartDrive

Provides 120 MB of additional disk data storage (hard drive version only).

*Built-in Super VGA video port

Provides superior performance and maintains the high resolution and colors 
of Video Electronics Standard Association (VESA) specification Super Video
Graphics Array (VGA). Super VGA features 16-color, non-interlaced 
1024 x 768 and 800 x 600 graphics modes, and 132-column text modes. By 
upgrading the video memory from 512 KB to 1 MB (using an option upgrade 
kit), you can display 256-color, non-interlaced 1024 x 768 video. The Super 
VGA video system is compatible with VGA (640 X 480), MCGA, EGA, CGA, MDA, 
and Hercules standards. Super VGA video requires a VGA analog monitor (color 
or monochrome).

*4 MB system memory, expandable to 32 MB

Enables you to run a variety of software. Eight SIMM sockets are located on
the main logic board for memory installation.

*Built-in mouse port (PS/2-style)

Leaves a 16-bit expansion slot open for an additional adapter board.

*Built-in serial and parallel ports

Two serial ports let you connect a serial mouse, an external modem, or 
other serial device. You can also connect a parallel printer or other 
parallel device, using the bidirectional parallel port.

OPTIONS

* multiple-frequency monitor
* diskette drives, including 2.88 MB
* hard drives
* tape drive
* CD-ROM drive
* additional system memory, expandable to 32 MB
* additional video memory, expandable to 1 MB
* ISA expansion adapters


(smm/tmc-04/17/95)