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LK1,LK2,LK3 are optional links on the CPC mainboard, connected to PPI Port B, Bit1-3. The links select the distributor name (which is displayed by the BIOS in the boot message).
These LKs exist on all CPC mainboards. By default, LK1-LK3 are not installed (Amstrad). Other combinations are LK2 installed in german Schneider models, and LK1+LK2 in australian Awa models.
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
Atari Mega ST 1 with Atari Megafile 30 hard disk module, Atari keyboard, Atari SM124 monitor and third-party 3.5-inch drive, 5.25-inch drive, mouse.
Mostra "VINTAGE COMPUTERS" Museo Itinerante Apulia Retrocomputing.
L'annunciata collaborazione con l'Istituto Tecnico Tecnologico "Modesto Panetti" di Bari dà vita ad un primo esperimento consistente nella esposizione di retrocomputers e retroconsoles il giorno 19 gennaio 2014.
The UPURS suite provides a set of tools for the transfer of data to and from the BBC Micro series of computers using a high speed serial link.
The high speed serial link is implemented using a custom cable designed to connect to the BBC Micro computers’ User Port, presenting a standard 9-pin serial plug to the external system.
More info here : www.retro-kit.co.uk/page.cfm/content/UPURS/
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
The following text was taken from www.retro-kit.co.uk/page.cfm/content/IFEL-ROMRAM-Cartridg...
The IFEL ROM/RAM Cartridge for Acorn BBC Master is a cartridge that fits into an available cartridge slot on the Acorn BBC Master and provides 8 selectable ROM images making them available to the computer in banks of 2.
The two switches on the far left of the board are used to select the different ROM/RAM banks available having four possible combinations.
The third switch from the left marked as TWP provides a TOTAL WRITE PROTECT feature protecting any Sideways RAM banks being overwritten.
The fourth switch along is marked as PWP and provides a PARTIAL WRITE PROTECT by only write protecting the odd numbered Sideways RAM banks.
The fifth switch, marked INH, inhibits the RAM on the board from being read or written. This is useful if a ROM has become corrupt or is faulty and the Master has locked up due to the corruption or fault.
The final switch on the right hand side of the board is then used to disable or enable the ROM socket pictured below the switch. When a ROM or EPROM is fitted, it can therefore be turned on and off as required.
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
8BASIC (C) is a BASIC interpreter developed by manufacturer G.G in 2010 for the homemade Z80/AM95 8 bit NANO COMPUTER.
21 "Z=LOG(X)" ; assign to Z the common logarithm (base 10) of X
22 "Z= LN(X)" ; assign to Z the natural logarithm of X
23 "Z= PI " ; assign to Z the PI value
24 "Z=RAD(X)" ; assign to Z the radians value of X degrees
25 "Z=DEG(X)" ; assign to Z the degrees value of X radians
26 "Z=SIN(X)" ; assign to Z the sine of X (radians)
27 "Z=COS(X)" ; assign to Z the cosine of X (radians)
28 "Z=TAN(X)" ; assign to Z the tangent of X (radians)
29 "Z=ASN(X)" ; assign to Z the inverse sine of X
30 "Z=ACS(X)" ; assign to Z the inverse cosine of X
31 "Z=ATN(X)" ; assign to Z the inverse tangent of X
32 "Z=RANDOM" ; assign to Z a random integer number between 0 and 255
33 "T$=STR A" ; assign to T$ the value of variable A converted into the equivalent string
34 " LET A=" ; (two lines statement) set the numeric variable A to the following number
"+0.00000" ; 8BASIC standard numeric format is 6 digits plus sign and decimal dot
35 " LET T$=" ; (two lines statement) set the text variable T$ to the following string
"ABCDEFGH" ; 8BASIC standard string format is 8 chars (alphanumeric and special symbols)
36 "LET B==A" ; assign to variable B the numeric value of variable A
37 "K=INKEY$" ; make a program wait until a key is pressed and assign to K the pressed key
EasyFlash is a cartridge for the C64 expansion port. In contrast to traditional cartridges, this one can be programmed directly from the C64.
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
The Nintendo NAS contains the following hardware. (Don't worry - this NES had a dodgy CPU and wasnt working. No NESs were hardmed)
CV860A Motherboard with onboard Via Eden C3 at 800Mhz
512 Mb RAM
400Gb 3.5″ IDE Hard disk.
3 * 100MB Lan connections
The LEDs on the front panel indicate power, disk activity and LAN activity. The power button turns the NAS on (funny that!) The reset button is not connected.
I’ve not put a CDROM drive inside the unit that utilises the cartridge flap on the front. Ive mounted the hard drive behind it instead.
The plan was to install FreeNAS, but I’ve now decided to put Ubuntu server 9.10 32 bit on instead. I can then put a full Apache/MySQL installation on it and publish its website to the internet. I will put a guest book system on it, so visitors can sigh the log. Keep an eye on nintendonas.retrocomputers.eu . I should have the site live by the new year.
Dont forget to checkout www.retrocomputers.eu for more info about my retro computer collection.
8BASIC (C) is a BASIC interpreter developed by manufacturer G.G in 2010 for the homemade Z80/AM95 8 bit NANO COMPUTER.
STATEMENTS
8BASIC consists of 51 fixed-format statements.
During editing you can change any of the 26 letters of each variable in any of the 51 statements.
1 "IF A>B:N" ; jump to line label N if A is greater than B
2 "IF A=B:N" ; jump to line label N if A is equal to B
3 "IFAB:N" ; jump to line label N if A is not equal to B
4 "IFA>=B:N" ; jump to line label N if A is greater than or equal to B
5 " "N": " ; line label N marking the destination of a GoTo/GoSub statement
6 "GO TO N " ; jump unconditionally to line label N
7 "GO SUB N" ; temporarily jump to line label N and returning to the following line
8 "RETURN " ; jump back to the statement following the original GOSUB statement
9 " END " ; terminate the execution of the program and suspends CPU operation
10 "Z=X+Y " ; add X and Y and assign the result to Z
11 "Z=X-Y " ; subtract Y from X and assign the result to Z
12 "Z=X*Y " ; multiply X and Y and assign the result to Z
13 "Z=X/Y " ; divide X by Y and assign the result to Z
14 "Z=SQR(X)" ; assign to Z the square root of X
15 "Z=INT(X)" ; assign to Z the integer of X
16 "Z=ABS(X)" ; assign to Z the absolute value of X
17 "Z=NEG(X)" ; assign to Z the value of X and change sign of Z
18 "Z=SGN(X)" ; assign to Z the sign function of X
19 "Z= (X)^Y" ; assign to Z the result of X raised to the power of Y
20 "Z=EXP(X)" ; assign to Z the result of e raised to the power of X
8BASIC (C) is a BASIC interpreter developed by manufacturer G.G in 2010 for the homemade Z80/AM95 8 bit NANO COMPUTER.
Due to the strong mathematical support of the AM9511 processor, the interpreter offers floating-point arithmetic and is just hold in 3KB of EPROM memory.
The most interesting feature of the 8BASIC is that each statement is eight characters fixed-length, which exactly fits the computer's LED display.
EasyFlash is a cartridge for the C64 expansion port. In contrast to traditional cartridges, this one can be programmed directly from the C64.
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
Dont forget to checkout retrocomputers.wordpress.com for more info about my retro computer collection.
Retro switch panel input option for the ELF2K. The artwork was inkjet printed at 600 dpi on premium photo paper which was then protected by clear self adhesive vinyl film used to cover book jackets.
The Nintendo NAS contains the following hardware.
CV860A Motherboard with onboard Via Eden C3 at 800Mhz
512 Mb RAM
400Gb 3.5″ IDE Hard disk.
3 * 100MB Lan connections
I’ve not put a CDROM drive inside the unit that utilises the cartridge flap on the front. Ive mounted the hard drive behind it instead.
The plan was to install FreeNAS, but I’ve now decided to put Ubuntu server on instead. I can then put a full Apache/MySQL installation on it and publish its website to the internet. I will put a guest book system on it, so visitors can sigh the log. Keep an eye on nintendonas.retrocomputers.eu . I should have the site live by the new year.
Dont forget to checkout www.retrocomputers.eu for more info about my retro computer collection.
The spectrum +3 is loading its games, via ethernet from the VAX workstation. Fantastic piece of work - I was really impressed!
There is more info on the Spectrum/VAX combination at spectrum.alioth.net/
Dont forget to checkout retrocomputers.wordpress.com for more info about my retro computer collection.
SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 microcontroller from the Atmel AVR microcontroller family. The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64.
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
EasyFlash is a cartridge for the C64 expansion port. In contrast to traditional cartridges, this one can be programmed directly from the C64.
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
Dont forget to checkout retrocomputers.wordpress.com for more info about my retro computer collection.
8BASIC (C) is a BASIC interpreter developed by manufacturer G.G in 2010 for the homemade Z80/AM95 8 bit NANO COMPUTER.
COMMANDS
The 8BASIC COMMANDS are used in direct mode from the "Menù"
1 "RUN CMD " ; cause the 8BASIC program to begin operating
2 "NEW CMD " ; erase the 8BASIC program and launch the program editor
3 "LIST CMD" ; launch the 8BASIC program editor
4 "SAVE SER" ; send out to an IBM PC the binary 8BASIC program resident in RAM through the serial port
5 "LOAD SER" ; write in RAM the binary 8BASIC program read from an IBM PC through the serial port
6 "SAVE PAR" ; send out to an IBM PC the binary 8BASIC program resident in RAM through the parallel port
7 "LOAD PAR" ; write in RAM the binary 8BASIC program read from an IBM PC through the parallel port
During editing you can delete and insert new lines. Navigation through statements and variables has been strongly facilitated in submenus
Dont forget to checkout retrocomputers.wordpress.com for more info about my retro computer collection.
Risc PC 700 running Windows 95. Machine has a 486 CPU card in, so this is not emulation!
Please check out my website www.retrocomputers.eu. You will find loads more stuff relating to old computers like the one above.
The Atari 8-bit family is a series of 8-bit home computers manufactured from 1979 to 1992. All are based on the MOS Technology 6502 CPU and were the first home computers designed with custom coprocessor chips.
Designed to look like a friendly typewriter, the Atari 800 is an expandable system with two easily accessable cartridge ports under a front cover, and a removable top with four expansion slots inside.
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.
A DIL socket cut down to 2x12 pins provided the offset spacer and connection to the CF/RTC/UART daughterboard
For more information about Bletchley Park, visit www.bletchleypark.org.uk/
Please take a look at www.retrocomputers.eu for more info about my retro computer collection.