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]orMAME.[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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Amstrad |
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Licenced systems |
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Timex Corporation |
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Cambridge Computer |
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Lists of clones |
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Compatible or |
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Sinclair Research peripherals |
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Timex peripherals |
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Other peripherals |
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People |
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