Tandy 1000HX/EX Pictures

Here are some pictures of a 1000HX (actually a couple different HX's). You can click on the pictures to see a larger version. At the bottom are a couple pictures of a 1000EX.

In the picture at left, the HX is booting from ROM into Tandy DOS 2.11.

Below right: a view from the back.

Left: The HX keyboard is built into the case. It is a compact machine. The cover over the expansion slots has been removed.

Below right: Rear view of the unit.

Below: Left and right sides of the unit.

Left: The speaker is on the bottom. The volume is adjusted with a fingernail.

Right: The HX has card-edge connectors on the back for a printer and an external floppy drive. The round video connector is for a composite monochrome monitor, or a TV.

Left: Expansion is via "Plus" cards - essentially standard 1/2-length 8-bit cards, but with a 62-pin connector. Shown here: a serial port card and memory expansion adapter.

Right: There is one Plus connector on the motherboard.

Both sides: The HX came with 256k RAM installed. To increase it to 640k required a memory card like this. The card also added a DMA chip and 2 additional Plus expansion sockets, permitting up to 3 cards to be used. This card doesn't have any memory on it.

Both: This card adds a 25-pin serial port.

Both: Another Plus card. This one is a 1200-baud modem. Some modems for the HX were not Hayes-compatible, but this one is.

Left and below: If you wanted to add a standard 8-bit card, you could modify the memory expansion card to convert one of the Plus sockets into a standard card slot. Here is a memory card that has been modified in that way. See the 1000-series FAQ for instructions.

Left: With the case opened. The power supply was on the right. The 1000HX is not easy to disassemble, or to put back together again.

Right: A view of the motherboard.

Left: A closer view of the 8088 processor, BIOS, and RAM chips. The BIOS chip is the only "user-accessible" part of the motherboard.

Below: The 8088 could be upgraded with an NEC V20 like this one.

Left: The special external floppy drive made for the 1000EX also works with the HX. This is a 3.5" 720k drive.

Right: Tandy Deluxe Joystick.

Left: Sierra King's Quest 1. There were many games made for this machine (and other 1000's).
Right and below: The 1000EX is very similar to the 1000HX. It has a 360k drive on the side rather than a 720k drive in front. It also lacks the capability of booting from ROM that the HX has and does not have an EEPROM for setup information.

Go back to Tvdog's Home Page.