[The Epson HX-20]
|Sleek, silvery exterior and a robust, brown case, this was the first true laptop. It was also available in a light cream colour...|
Made in 1982, this machine is probably the first true laptop as it was introduced a year before the Tandy TRS80 Model 100 believed by many(particularly in America) to be the first.
4.8V 1100mA (4 x 1.2V Ni-cad cells)
|Production year: 1982||OS: - Undefined -|
|Type: Laptop||RAM: 16KB||ROM: 32KB|
|Display: Internal LCD||Resolution: 20x4 chars/ 132x32pi|
Please note that there is a glaring inaccuracy in the processor list, as this machine doesn't have one 6301, but TWO, one of which is dedicated to IO tasks, like serial, updating the LCD and similar. This makes the machine very responsive.
But now for a few more details:
There's no 'auto power off', but it keeps the contents of the memory intact if you turn it off. (It will return to the system meny, though)
- Storage: In the upper righthand corner there's space for a removable 'Micro cassette drive'. This uses the same type of cassettes as small dictaphones, so should be readily available. The same area can also hold an Option ROM module.
- Printer: Built in. A small dot-matrix type in the top left corner.
- Other connectors:
- There's a set of Ear/Mic/Remote connectors at the side. These are for storing programs and data on normal cassettes, particularly useful if your machine doesn't have the micro-cassette drive.
- Barcode connector for a wand or other reader at the right side.
- Power, RS232(7pin Din) and Serial(5 pin Din) at the back.
- A 2x20 pin connector at the lefthand side. This is for an optional 'expansion unit'.
When you activate it, you get numbered choices...
- Monitor - This looks like a primitive debugger. Don't know usage yet.
- Basic - Yep...
Epson Basic V1.0
Copyright 1982 by
Microsoft & EPSON
P1: 0 Bytes
The memory will most probably contain garbage when you first power it up, so you might want to press [Ctrl]+[@] to 'initialize' the system.
There are room for optional ROM modules inside the machine, too.
Known accessories for this machine is:
- 16KB RAM expansion
- Diskette drive.
- External monitor interface.
Pdf's of assorted manuals. If the link doesn't work, just use the search function to find them.
A lot of program listings, a cable schematic, ROM-dump, memorymap and a few other useful bits.
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