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T > TIMEX COMPUTERS > TC-2048   


TIMEX COMPUTERS
TC-2048

In fact, two different systems were called Timex 2048.
The first, called TS-2048 (for Timex-Sinclair) was designed by Timex USA but never passed the prototype stage. It was a 16K version of the TS-2068 with the same silver case but reduced features, a Kempston joystick interface and additional video modes. At the time when it was ready to be launched, the market had moved to 48K and 64K systems, and there was no future for a new 16K machine.

The second, named TC-2048 (for Timex Computers) was designed and made in Portugal by the Timex Portuguese subsidiary. It kept some features of the US prototype - joystick interface and extra video modes - and was 99% compatible with the ZX Spectrum. Slight differences in BASIC ROM and edge connector prevented some rare game software or peripherals to run correctly.

However, it was a better quality machine than the genuine Sinclair. Plastic-key keyboard was more reliable and had a full-sized space bar, a power switch and power Led were added and the custom ULA chip offered better IRQ and memory management.

Thanks to its extra video modes, the TC-2048 was able to display 80 columns text. Coupled with an external floppy disc unit - generally, the FDD-3000 - it could run CP/M O.S. and software.

As Timex Computers was only allowed to distribute the TC-2048 in countries where the Sinclair Spectrum wasn't established, it was only sold in Portugal and Poland. it met a great success in both countries where several ten-thousands machines were sold.

Thanks to Alejandro Cifuentes for the picture.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.
NAME  TC-2048
MANUFACTURER  Timex Computers
TYPE  Home Computer
ORIGIN  Portugal
YEAR  1984
BUILT IN LANGUAGE  Sinclair BASIC
KEYBOARD  42 plastic keys
CPU  Z80A
SPEED  3.5 MHz.
CO-PROCESSOR  Custon ULA chip
RAM  48 KB
ROM  16 KB
TEXT MODES  32 chars. x 24 rows, 80 columns extended mode
GRAPHIC MODES  256 x 192 dots in colour mode, 512 x 192 dots in monochrome mode
COLORS  8
SOUND  1 voice, 10 octaves, built-in speaker
SIZE / WEIGHT  Unknown
I/O PORTS  Tape recorder IN & OUT, RF TV video output, Composite video output, Joystick connector (DB9), expansion bus connector
OS  BASIC based
POWER SUPPLY  External power supply unit (ground in the center), 9v DC at 1000 mA.
PERIPHERALS  All the Sinclair Spectrum and third party expansions
PRICE  About 200 (Portugal, 198?)

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