| RAM |
256 bytes -
Memory expansion card can be added : 4 KB or 32 KB (up to 52 KB) |
| ROM |
26 K |
| VRAM |
16K |
| Orgin |
United States |
| Year introduced |
1979 |
| Built in software |
TI
Basic |
| Keyboard type |
48-key
QWERTY layout. Mechanical with springs. |
| Processor |
TMS9900 |
| Clock |
3.3 MHz |
| Video |
NTSC:
TMS9918A/TMS9928A, PAL/SECAM: TMS9929A, 256 x 192, 64 x 48, 32 x 24. 16
Colors available. Standard mode: 24 lines and 32 columns of 8x8 pixel
characters, with 2 colors (foreground and backgroud) per group of 8
characters. Text mode: 24 lines and 40 columns of 8x6 pixel characters.
Monochrome display: 2 colors (foreground, background) for all characters. No
sprites. Multicolor mode: 48 lines and 64 coloumns of 4x4 boxes. Each box can
have its own color. Graphic mode: 192 lines and 32 columns of 1x8 pixels
"characters". Each character can have its own set of two colors. In
addition, the VDP can handle up to 32 sprites. Each can have a color of its
own (background is always transparent). |
| Color Palette |
16 |
| Sound |
TMS
9919 Complex Sound Generator. The sound chip can emit simultaneously up to 3
tones and 1 noise (which can be a periodic or a white noise). The theoretical
frequency range is from 28 Hz to 111 kHz and the volume can be adjusted on a
scale of 0 to 15. |
| Interfaces |
1
x Cartridge, 1 x Expansion Port, 1 x Composite Monitor Out, 1 x Cassette
Interface, 1 x Joystick (non Atari compatible) |
| Disk drive |
No
built-in drive. |
| Power supply |
External |
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