Tandy 4000

The Tandy 4000 brought Intel’s 32-bit 80386 to the company’s professional PC-compatible range. Standard ISA expansion and hard-disc configurations targeted business, networking and technical applications.

It extended the standards-based direction begun by the Tandy 3000 and offered Radio Shack customers a high-performance 386 workstation.

Notable Features

• Processing is provided by Intel 80386 at 16 MHz.
• The standard memory configuration was 1MB standard; expandable.
• Display hardware provided Graphics according to installed VGA/EGA adapter.

Historical Significance

• It extended the standards-based direction begun by the Tandy 3000 and offered Radio Shack customers a high-performance 386 workstation.
• Storage-only and minor motherboard revisions are documented on this page rather than treated as separate products.

Collector’s Notes

• Confirm the catalogue number, processor, memory and drives because similar Tandy cases were sold in several configurations.
• Original DeskMate or system disks, keyboards, monitors and Radio Shack documentation add historical value.

Specifications

Technical Information
Name	Tandy 4000
Manufacturer	Tandy
Launched	Friday, January 1, 1988
Discontinued	1991
Country	United States
CPU	Intel 80386 at 16 MHz
Units Sold
Operating System	MS-DOS and Xenix/386 options
I/O	Serial, parallel and 16-bit ISA expansion
Keyboard	Separate AT-style keyboard
Storage	1.2MB floppy and factory hard-disc configurations
Sound	PC speaker; audio expansion optional
Graphics	Graphics according to installed VGA/EGA adapter
Display	External monitor using VGA or other expansion graphics
ROM	PC-compatible BIOS
RAM	1MB standard; expandable
CPU Speed	16 MHz