Manufacturer | Lambda Electronics Limited |
---|---|
Release date | 1983 |
Operating system | BASIC |
CPU | NEC D780C-1 @ 3,25 MHz |
Memory | 2KiB, 16KiB, or 32KiB |
Storage | Audio cassette |
Display | UHF TV signal, PAL video out (built-in RCA connector); monochrome, 32 x 24 characters, 64 x 48 using semigraphic symbols |
Graphics | C4005 ULA I/O chip |
Sound | C4005 (1 voice, 3 octaves) |
Input | Tape interface (audio in / out), expansion bus, Atari joystick port |
Dimensions | 295 x 150 x 55 mm |
Mass | 700 gr |
Backward compatibility | ZX81 |
The Lambda 8300 was a Sinclair ZX81 clone from Lambda Electronics Limited of Hong Kong. [1] [2] [3] It had a modified ROM (including extra semigraphic characters) and extra hardware, making it not fully compatible. [4] [5] Total compatibility could be achieved by installing a ZX81 ROM. [1]
It came with 2K RAM (expandable to 16K or 32K), three octave single voice sound (generated by a C4005 ULA I/O chip) and an Atari joystick port. [6] Specifically, it used a NEC D780C-1 (Z80A clone) microprocessor at 3.25 MHz. [1]
The character set was slightly altered from the ZX81, replacing some symbols with game graphics (see below). [3] BASIC tokens have alternate codings, further preventing 100% compatibility with the ZX81. Command input is done key by key (not by keyword entry like on the ZX81). [3]
The computer was somewhat successful in Northern Europe (mostly in Denmark and Norway) and China, and today enthusiasts still develop new hardware.[ citation needed ]
The Lambda 8300 can be emulated on modern systems using, for example, the EightyOne Sinclair Emulator [7] [8] or MAME. [9]
The machine was licensed to several different companies, with many rebranded models available in different markets. [1] Unisonic distributed it as the Futura 8300 in the US. [10] [11] In France it was available as the DEF 3000. [12] [13] [14]
Known model designations:
The character set was slightly altered from that of the ZX81, replacing the ,, ?, £, and ' symbols with game graphics: , , and . [3] BASIC tokens also have alternate codings. [3]
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0x | space | ▘ | ▝ | ▀ | ▖ | ▌ | ▞ | ▛ | ◤ | ◥ | " | $ | ||||
1x | ( | ) | > | < | = | + | - | * | / | ; | , | . | 0 | 1 | 2 | 3 |
2x | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | G | H | I | J |
3x | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
4x | THEN | TO | STEP | RND | INKEY$ | PI | ||||||||||
5x | ||||||||||||||||
6x | ||||||||||||||||
7x | up | down | left | right | GRAPHICS | EDIT | ENTER | DELETE | LMODE | BREAK | LINE NO. | number | cursor | |||
8x | ▉ | ▟ | ▙ | ▃ | ▜ | ▐ | ▚ | ▗ | ◢ | ◣ | " | $ | ||||
9x | ( | ) | > | < | = | + | - | * | / | ; | , | . | 0 | 1 | 2 | 3 |
Ax | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | G | H | I | J |
Bx | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Cx | CODE | VAL | LEN | SIN | COS | TAN | ASN | ACS | ATN | LOG | EXP | INT | SQR | SGN | ABS | PEEK |
Dx | USR | STR$ | CHR$ | NOT | AT | TAB | ** | OR | AND | <= | >= | <> | TEMPO | MUSIC | SOUND | BEEP |
Ex | NOBEEP | LPRINT | LLIST | STOP | SLOW | FAST | NEW | SCROLL | CONT | DIM | REM | FOR | GOTO | GOSUB | INPUT | LOAD |
Fx | LIST | LET | PAUSE | NEXT | POKE | PRINT | PLOT | RUN | SAVE | RAND | IF | CLS | UNPLOT | CLEAR | RETURN | COPY |
Code formatting indicates BASIC keywords tokenized into single-byte code points. |
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