4020 LX  (250-5120)           Features                 Faxback Doc. # 1582

20 MHz Intel 80386 microprocessor (32-bit CPU):

   Gives you true Intel 80386 processing power.

Full IBM PC/XT/AT compatibility:

   Ensures compatibility with hardware and software built to the IBM standard  
   for PC/XT/AT and 80386 computers.

MS-DOS, MS OS/2, and XENIX compatibility:

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

101-key enhanced keyboard:

   Provides easy typing with a standard 101-key layout. Features auto-repeat
   to reduce the number of multiple keystrokes.

High-capacity (1.44MB) 3 1/2" diskette drive:

   Enables you to read and write both standard-density (720KB) and             
   high-density (1.44MB), 3 1/2" diskettes. A high-density, 3 1/2" diskette
   lets you store a large volume of information on a diskette that easily fits
   into your pocket.

Four disk drive bays:

   Enable your system to have as many as two diskette drives and two hard disk 
   drives. (See "Options" for drive types.)

Six 16-bit standard expansion slots (four full-sized, two half-sized):

   Permits installation of up to six adapter boards (16-bit adapters and/or
   most 8-bit adapters). One slot is already occupied by the VGA video
   expansion adapter. Sixteen-bit adapters have a higher data transfer rate
   than 8-bit adapters.

16-bit VGA video expansion adapter:

   Provides higher resolution and many more colors than an EGA adapter. Also
   supports 132-column text modes and can emulate the MCGA, EGA, CGA, MDA, and 
   Hercules standards. Requires a VGA analog monitor (color or monochrome).

1MB of high-speed, page-mode memory, upgradable to as much as 16MB:

   Enables you to use CAD/CAM, database, desktop publishing, and other
   sophisticated application programs. Memory upgrades use the high-speed,
   32-bit memory expansion slots and/or the 16-bit standard expansion slots.

Two 32-bit memory expansion slots:

   Permit installation or 32-bit memory expansion adapters. A memory adapter
   is already installed in one slot.

32-bit expansion adapter:

   Provides access to high-speed, 32-bit memory and enables memory expansion
   up to 8MB with optional memory upgrade kits. A second memory expansion
   adapter is available.

Built-in diskette drive controller:

   Saves you the cost of a diskette controller board and the use of a 16-bit
   slot when you add diskette drives to your system.

Built-in 16-bit Integrated Drive Electronics (IDE) connector:

   Saves you the cost of an IDE board and the use of a 16-bit slot when you
   hook up IDE hard drives to your system. These drives operate like standard
   hard drives (ST-506 type) but are much easier to install.

Built-in PS/2-style mouse port:

   Saves you the cost of a PS/2-style mouse board and the use of a 16-bit
   slot.

Built-in serial port:

   Saves you the cost of a serial expansion adapter and the use of a 16-bit
   slot when you connect a serial device such as a serial mouse or an external
   modem.

Built-in parallel port:

   Saves you the cost of a parallel expansion adapter and the use of a 16-bit
   slot when you connect a parallel printer.

Battery-backed internal clock:

   Keeps the computer's clock running and maintains the Setup information,
   even when the computer is turned off.

200-watt power supply:

   Provides controlled power and added system protection during periods of
   high power use.

Keylock:

   Secures the computer's cover to the frame.

32-kilobytes (KB) of cache memory:

   Increases processing speed by decreasing memory access time. Cache memory
   is the fastest part of the total memory configuration, storing only data to 
   be used in the near future.