Questions tagged [apple-ii]
The Apple II series of personal computers and related software and hardware. Use [apple-iigs] for the Apple IIgs in particular, or [apple] for Apple hardware in general.
279 questions
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Viruses for Apple II? [closed]
I have long wondered how the Killer DOS virus works on Apple II computers, and I have the same question about 2001 Odyssey. I am generally interested in learning about viruses that were not mentioned ...
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Does AppleSoft BASIC really parse "LE THEN" as "LET HEN"?
I have a line of code
7010 IF LS > LE THEN GOTO 7060
However, once entered (manually or pasting), and then I do a LIST 7010, I get
7010 IF LS > LET HEN GOTO 7060
I have tried this on Ample (...
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Merge two (saved) Apple II BASIC programs in memory
The ZX Spectrum had the ability to MERGE two BASIC programs from storage media, so that two separate BASIC listings saved to tape, could be first LOADed and then MERGEd, thereby combining the two ...
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Why does the Apple II have the VERIFY command in DOS 3.3 and ProDOS?
On the Apple II, DOS 3.3 and the later ProDOS environments included a VERIFY command which allowed you to "verify that the file was readable". If you provided a filename to the command at a ...
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Advice creating and saving a logo with Apple II HGR graphics (BASIC prog)
I'm working on a small project with a local association to revive and illustrate what can be done with an Apple II. They have both a II c and e models.
With the low res GR mode, I use HLIN, VLIN and ...
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How can I run a machine language program off the disk drive on an Apple II?
Apple II was the first computer I used and programmed on, but only in BASIC, and back in 1979. I learned machine code on my ZX Spectrum which was tape only.
On Apple II how do you load/run a machine ...
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NTSC scan lines used by 8-bit computers
Several computers of the late 70s used a TV set for their display. I'm not talking about the TRS-80, which came with a monitor that was basically a stripped-down black and white TV set, but computers ...
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Apple II sales by sector
Of the American 8-bit personal computers, the Apple II was arguably the most general, in that it sold well to home enthusiasts (Woz's original intended target market), schools (thanks in part to the ...
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US equivalent of the Microvitec Cub monitor
In the 8-bit computing era, UK schools acquired BBC Micros in a project sponsored by the BBC. The monitor typically used with these was the Microvitec Cub.
In the US, there was also a push to put ...
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Getting garbled text when using ADTPro with Apple IIc and serial connection
I am currently having issues while trying to use ADTPro to connect to my Apple IIc and was wondering whether anyone could help me. I am using this serial connection kit and trying to bootstrap from ...
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What were MECC's specifications for a school computer in 1978?
It is well-known that one key moment for Apple was selling 500 Apple IIs to the Minnesota school system in 1978.
I came across this video which discusses the background to that, including a reminder ...
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ProDOS BASIC.SYSTEM overwrites RNDL ($4E) - how to get random numbers
I am writing an application that uses random numbers. The plan is to use RNDL/RNDH ($4E) to initialize a pseudo-random number generator. Unfortunately, I keep getting the same sequence. Tonight, I ...
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What is likely cause for sudden auto-rebooting of Apple II+ with Disk II?
I have the Apple ][+ with 64 KB RAM: 48 KB on the motherboard plus 16 KB on the Language Card, in Slot 0. Slot 6 has disk controller for two Apple-manufactured Drive ][ floppy drives. The display is ...
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How Can Apple II DOS 3.3 Floppy Disks be Restored after Formatting with INIT?
I have files on around 50 5.25" floppy disks. Most are in the Apple II (or ][ Plus), DOS 3.3 formats. I have the Apple ][+ with 64K RAM (48K on MBd plus 16K on the Language Card in Slot 0), and ...
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Did any DOS 3.3 variants relocate start of BASIC?
A common annoyance when programming in BASIC on the Apple II is that 6K of BASIC storage area falls before the start of the first hires screen, with another big chunk of storage falling after it. On ...
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