The Signetics 2650 - The MESSUI Place

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MINICOMPUTER BREAKTHROUGH! COMPLETE $figq2o SYSTEM uuu Here it is at last --- the first mini-computer kit system for the electronics enthusiast who knows nothing (or a lot) about computers. If you're one of the people who think that computer technology is beyond you, this is the system for you Just imagine it — after building it, you use your standard record player to 'input the program with the EA/Signetics record, and you're using your computer right away. You don't need to know any complicated machine 'languages'. You communicate with it in English! Incredible bargain -- you'd pay over $800 for a similar built-up system! YOUR OWN TV SET UNIT- KIT PRICE $22 2650 MINI-COMPUTER Fantastic new 2650 Mini Computer (see May '78 EA). Complete kit includes all electronic parts, PC board and power supply plus case, Marvi-plate lid and deluxe brushed aluminium front panel. Complete kit for above: Cat K-3447 $115.00* PCB (78up5), fibreglass, only: Cat H-8341 . $5.00 2650 microprocessor chip only: Cat Z-9201 .. .$28.50 2608/CN0035 pip bug 8k ROM only: Cat 1-9309 .. $19.75 VIDEO DISPLAY UNIT Incredibly low cost Video Display Unit uses your own TV set as the monitor. See EA, February & May '78 for details. Basic Video Display Kit: Cat K-3460 . $97.50 * Video Modulator Kit for above: Cat K-3462 $4.50 * ASCII Keyboard Encoder Kit for above: Cat K-3464 ..$39.50* DART IC (S1883/MM5303N/TMS6011: Ca.t Z-9204 .. $5.90 * Keyboard Console Metalwork: Cat H-3130 .$24.50 4C Keyboard (fully assembled): Cat X-1180 $55.00 it CASSETTE TAPES VIDEO DISPLAY AC/DC cassette recorder ideal for this system. Cassette recorder Cat A-4092 Cassette tapes: C60 LN — Cat C-3350 .. -C90 LN — Cat C-3352 .. 2650 MINI-COMPUTER KIT PRICE $115.00 .. $39.95 .. $1.50 .. $2.00 NEM TYPICAL SYSTEM CASSETTE INTERFACE KIT PRICE $24.50 YOUR OWN RECORD PLAYER OR CASSETTE RECORDER CASSETTE INTERFACE Enables your cassette recorder or record player to interface with mini-computers such as the 2650. Kit includes PC board and all components except power transformer. The complete PC board assembly will fit inside your 2650 mini-computer case, the 2650's transformer providing the AC power. We believe this kit to be the best available on the market to suit the 2650 system. Other kits require long setting-up time and the final result is not nearly as good as with this one. Complete kit (as above) Cat. K-3465 .. $24.50 +IC PCB only (Cat H-8331) $3.75 PAPER TAPE READER KIT See page 33 or our new catalogue for full details. Ideal for use with the 2650 mini-computer. Kit includes all electronic components, handsome black anodised aluminium case, ribbon interface cable and complete assembly and interface instructions, schematics and software. Tape Reader Cat K-3466 $95.00 SOFTWARE RECORDING EA/SI GNETICS RECORDING - PRICE $2.80 This is a 33-1/3 RPM recording of useful 2650 system software. By using it on your record player or dubbing it onto cassette and using it in your cassette interface system you can program the 2650 directly for exciting new programs and competitive games. It contains 11 programs you can run. Record Cat B-6300 .$2.80 lc COMPONENTS MARKED 40 ARE REQUIRED TO BUILD THE SYSTEM SHOWN IN THE BLOCK DIAGRAM ABOVE. THEY ADD UP TO ONLY $369.20!
INFORMATION CENTRE MICROCOMPUTERS: I would like to learn something about computers and I was thinking about getting the 2650 system described in your May 1978 issue. However I don't think I will because wherever I look I come up against an impenetrable wall of unintelligible jargon. I have looked in half a dozen books, pamphlets and introductions to various systems, "structured so that the user not familiar with computers can learn to generate code with a minimum of effort ..." but have found without exception a mass of unintelligible jargon. Is there any book which has a list of codes together with their binary equivalents and an explanation in readable English of what they are supposed to do? If so I would be very grateful if you could let me know. (R. H., Alphington, Vic.) • We agree that there do not seem to be any easily read up-to-date books on machine language programming, which make no assumptions regarding the background knowledge of the reader. Most people have had to plough their way through many different books and articles, to gain even a modest understanding. And whether it would be a proposition for anyone to write such a book now is perhaps in doubt, as machine language may not be in wide use for much longer. Incidentally, there is no standardised machine instruction code used by all of the various microprocessors; virtually all of them use different codes. Notes & Errata LOW COST VIDEO DISPLAY UNIT (February 1978, File No 2/CC/23): In the circuit diagram on page 63, R9 and R6 should be interchanged, along with C11 and C8. The parts list and overlay diagram on page 65 are correct. Note also that the polarity of C19 is incorrectly marked on the overlay diagram. ELECTRONICS Australia, July, 1978 125
Page 1 and 2: GETTING INTO MICROPROCESSORS The Si
Page 3 and 4: GETTING INTO MICROPROCESSORS telepr
Page 5 and 6: GETTING INTO MICROPROCESSORS A "bab
Page 7 and 8: GETTING INTO MICROPROCESSORS gate d
Page 9 and 10: GETTING INTO MICROPROCESSORS When y
Page 11 and 12: ADAPTABLE BOARD COMPUTER PROTOTIPIN
Page 13 and 14: 2650 MESSAGE EDITOR Ma= 0440 0443 0
Page 15 and 16: A low cost video display unit Here
Page 17 and 18: Video display unit crystal is used,
Page 19 and 20: Low cost video display unit VIDEO
Page 21 and 22: Easy expansion kit for 2650 microco
Page 23 and 24: 76 .OW COST V.D.0 (E.A. FEB/MARCH 1
Page 25 and 26: 512 I/O ports (two blanks, each of
Page 27 and 28: Supplied in an informative sleeve,
Page 29 and 30: 11.1.1.1.11.1■ 2650 SOFTWARE PACK
Page 31 and 32: Uses latest 4K-bit RAM chips: New,
Page 33 and 34: New 2650 system The D command may b
Page 35: New 2650 system photosensitive alum
Page 39 and 40: Add full buffering and parallel 10
Page 41 and 42: How to expand your 2650 Minicompute
Page 43 and 44: How to expand your 2650 Minicompute
Page 45 and 46: Extra RAM for the 2650 In this seco
Page 47 and 48: devices is easier. In our particula
Page 49 and 50: New game programs for your 2650 com
Page 51 and 52: CT-64 • 64 OR 32 CHARACTERS PER L
Page 53 and 54: How to use the Matsushita modules:
Page 55 and 56: Adding a printer to your 2650 syste
Page 57 and 58: Notes & Errata NEW GAME PROGRAMS FO
Page 59 and 60: AO 0 Al 0 A2 0 A30 A40 A50 A0 0 A70
Page 61 and 62: 2708 EPROM programmer In order to i
Page 63 and 64: Can be stored in a 2708 EPROM: 2650
Page 65 and 66: 2650 utility programs ADDRESS AND D
Page 67 and 68: 2650 memory test routines orating a
Page 69 and 70: Educational, Hobbyist, Business, In
Page 71 and 72: 1 LEADER 10 SECS MARK : PROMPT CI R
Page 73 and 74: pectedly, PIPLA used quite a few ut
Page 75 and 76: 2650 MINI ASSEMBLER However after b
Page 77 and 78: LUNAR LANDER BY D.W. EDWARDS 3/9/78
Page 79 and 80: GI MICRO BASIC NUMBER GUESSING GAME
Page 81 and 82: especially suitable for use as a tr
Page 83 and 84: Psst! Want the most complex clock i
Page 85 and 86: An improved 2650 disassembler Here
Page 87 and 88:
AN IMPROVED 2650 DISASSEMBLER becom
Page 89 and 90:
Cassette Interface runs Kansas City
Page 91 and 92:
What this means is that to prevent
Page 93 and 94:
Use your 2650 system to generate ra
Page 95 and 96:
IRV I 110-0.-411/ .169 20--.4.• I
Page 97 and 98:
tends to introduce hassles when you
Page 99 and 100:
10 11 H H H L — H —L —L H H H
Page 101 and 102:
"Trace" routine helps debug 2650 pr
Page 103 and 104:
1 P"ENTER COMMAND" P G35 2 L4096=2
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The Signetics 2650 - The MESSUI Place

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