Altair 680 Altair 8800 Amazon Alexa Amiga Amiga CD32 Amstrad CPC Amstrad PCW Android APF MP1000/Imagination Machine Apple I Apple II Apple IIgs Arcade Arcadia 2001 Arduboy Astral 2000 Atari 2600 Atari 5200 Atari 7800 Atari 8-bit Atari ST Atom. Zxsp is a simulator for the historic Sinclair ZX home computer family for Mac OS X. Versions for classic MacOS and old versions of Mac OS X are available from the Old versions/ directory.

1. Altair (zx Cpc) Mac Os Pro
2. Altair (zx Cpc) Mac Os Download
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Version 2.0 BETA-1 R7 AVAILABLE 10/07/2019

Multiplatform

Finally, Retro Virtual Machine is now multiplatform.

It works natively in MacOs(from version Mavericks 10.9), Linux(any modern distribution) and in Microsoft Windows(from Windows Vista).

Multisystem

Another big new feature in version 2 is that Retro Virtual Machine now emulates the Amstrad CPC.

In addition it emulates all the official models of ZX Spectrum, as well as some clones like Inves Spectrum+ and the ZXUno.

Machines available in Retro Virtual Machine

ZX Spectrum

• Spectrum 16k/48k
• Spectrum 128k
• Spectrum +2
• Spectrum +2A
• Spectrum +3
• Inves Spectrum+
• ZX-Uno

Virtual cassette player

Retro Virtual Machine emulates a Virtual Cassette player

Can be played back and recorded in different formats, at real speed or, using warp mode, at a higher speed

Low level disc emulation

Another new feature in RVMv2 is that disk drives are emulated at a low level (MFM/FM).

Disks are loaded at the correct speed, and emulation is much more accurate than in RVMv1

RVMv2 also supports the use of HFE files directly.

Devices

Now, in RVMv2 we can add external devices, for example we can add a DIVMMC to the virtual Spectrums to load from SD cards.

Or you might want to have more sound channels, no problem, add a Turbo Sound to your spectrum.

Do you need more memory? Add an X-Mem to your CPC and you will have 576k ram+ 512k rom.

And this is just the beginning, many more devices are planned for the next beta.

'Virtual' SD Cards

If you use a DIVMMC or a ZXUno you can have your software on 'virtual' SD cards.

RVMv2 makes life easier for you, internally implements FAT16/32 file systems

You can add files just by dragging them, renaming them, deleting them and all using only the mouse.

Selection of homebrew games

In the ZXUno, or in any ZX with a DIVMMC when you create a sd card you can optionally add a selection of the best Homebrew games. All this thanks to:

How to use the included games?

Supported peripherals

ZX Spectrum

• Magic-AY
• Turbo Sound
• DIVMMC
• Kempston Mouse

Monitor emulation

RVMv2 emulates all video signal generation at low level, virtual machines generate H-Sync V-Sync signals as well as the video signal.

The virtual monitor is responsible for displaying the final image, also emulates the mix of frames that is usually produced in an interlaced signal.

RVMv2 also uses the correct pixel aspect ratio. In the analog world there is nothing exactly square.

Graphic post-processing.

In RVMv2 all video output goes through a shader that runs on your graphics card, so you can (or not, it's your choice) apply effects like 'scanlines', blur, static noise, and even emulation of the monitor's pixel mask.

High quality audio

In RVMv2 the audio is quantified cycle by cycle, then a 192,000Hz signal is generated and sent to the sound card.

As a result, the sound is clean, and the emulation is synchronized with the audio, without jumps and with low latency.

Altair (zx Cpc) Mac Os Pro

The output of each of the audio channels is configurable directly from the emulator interface.

Gamepads

Do you like to play with the gamepad of your favorite console? No problem, in rvm Joysticks and Gamepads are detected and map automatically just by connecting them.

System Requirements

MacOs

• Any mac that can run MacOs Mavericks 10.9 or later

Altair (zx Cpc) Mac Os Download

Microsoft Windows

• Windows Vista+ x86 or x64
• dual core CPU (recommended)
• Any graphics card compatible with OpenGL 2.1

Linux

• dual-core CPU (recommended)
• Any graphics card compatible with OpenGL 2.1

Debugger

Are you programming for any of the systems supported in RVMv2? RVMv2 incorporates a powerful integrated debugger with which you will be able to test your program.

You can control the execution of the emulator with the keyboard and mouse.

You also have a powerful terminal from which you can launch a multitude of commands that will make the task easier.

Assembler

RVMv2 Also features a powerful integrated z80 assembler. You can compile your own programs from the debugger terminal.

The assembler uses LUA as 'meta-language'.

The 'Programming Guide with RVMv2 Beta1' will soon be available.

Be warned that the development environment will change a lot in future versions.

Support us

Altair (zx Cpc) Mac Os X

If you like Retro Virtual Machine, please think about supporting us.

You can follow us on Twitter and Youtube... it's free.

If you think it's worth a donation, don't hesitate to support us on Patreon, or donate with Paypal.

Anyway, just for using it Thank you so much!

Download the MiSTer Macintosh Plus core and relive 1984!

Apple Macintosh

The Macintosh, or Mac, is a series of several lines of personal computers, manufactured by Apple Inc. The first Macintosh was introduced on January 24, 1984, by Steve Jobs and it was the first commercially successful personal computer to feature two old known then, but still unpopular features—the mouse and the graphical user interface, rather than the command-line interface of its predecessors.

Production of the Mac is based on a vertical integration model in that Apple facilitates all aspects of its hardware and creates its own operating system (called System Software, later renamed to Mac OS, see the lower image) that is pre-installed on all Mac computers. This is in contrast to most IBM PC compatibles, where multiple sellers create hardware intended to run another company’s operating software. Apple exclusively produces Mac hardware, choosing internal systems, designs, and prices. Apple also develops the operating system for the Mac, currently Mac OS X version 10.6 “Snow Leopard”. The modern Mac, like other personal computers, is capable of running alternative operating systems such as Linux, FreeBSD, and, in the case of Intel-based Macs, Microsoft Windows. However, Apple does not license Mac OS X for use on non-Apple computers.

The Macintosh project started in the late 1970s with Jef Raskin (1943–2005) (see image), an Apple employee, who envisioned an easy-to-use, low-cost computer for the average consumer. He wanted to name the computer after his favorite type of apple, the McIntosh, but the name had to be changed for legal reasons. In September 1979, Raskin was authorized by the management to start hiring for the project, and he began to look for an engineer who could put together a prototype. Bill Atkinson, a member of Apple’s Lisa team (which was developing a similar but higher-end computer), introduced him to Burrell Smith, a service technician who had been hired earlier that year. Over the years, Raskin assembled a large development team that designed and built the original Macintosh hardware and software; besides Raskin, Atkinson and Smith, the team included Chris Espinosa, Joanna Hoffman, George Crow, Bruce Horn, Jerry Manock, Susan Kare, Andy Hertzfeld, and Daniel Kottke.

The first Macintosh board, designed by Burrell Smith, had 64 kilobytes (KB) of RAM, used the Motorola 6809E microprocessor, and was capable of supporting a 256×256 pixel black-and-white bitmap display. Bud Tribble, a Macintosh programmer, was interested in running the Lisa’s graphical programs on the Macintosh, and asked Smith whether he could incorporate the Lisa’s Motorola 68000 microprocessor into the Mac while still keeping the production cost down. By December 1980, Smith had succeeded in designing a board that not only used the 68000, but bumped its speed from 5 to 8 megahertz (MHz); this board also had the capacity to support a 384×256 pixel display.

Smith’s design used fewer RAM chips than the Lisa, which made production of the board significantly more cost-efficient. The final Mac design was self-contained and had the complete QuickDraw picture language and interpreter in 64 Kb of ROM and 128 KB of RAM. Though there were no memory slots, its RAM was expandable to 512 KB by means of soldering sixteen chip sockets to accept 256 Kb RAM chips in place of the factory-installed chips. The final product’s screen was a 9-inch, 512×342 pixel monochrome display, exceeding the prototypes.

The design caught the attention of Steve Jobs, co-founder of Apple. Realizing that the Macintosh was more marketable than the Lisa, he began to focus his attention on the project. Raskin finally left the Macintosh project in 1981 over a personality conflict with Jobs, and the final Macintosh design is said to be closer to Jobs’ ideas than Raskin’s. After hearing of the pioneering GUI technology being developed at Xerox PARC, Jobs had negotiated a visit to see the Xerox Alto computer and Smalltalk development tools in exchange for Apple stock options. The Lisa and Macintosh user interfaces were partially influenced by technology seen at Xerox PARC and were combined with the Macintosh group’s own ideas.

The Macintosh 128k (see image) was announced to the press in October 1983 and was introduced in January 1984. It came bundled with two applications designed to show off its interface: MacWrite and MacPaint. Although the Mac garnered an immediate, enthusiastic following, some labeled it a mere “toy.” Because the machine was entirely designed around the GUI, existing text-mode and command-driven applications had to be redesigned and the programming code rewritten; this was a time consuming task that many software developers chose not to undertake, and resulted in an initial lack of software for the new system. In April 1984 Microsoft’s MultiPlan migrated over from MS-DOS, followed by Microsoft Word in January 1985. In 1985, Lotus Software introduced Lotus Jazz after the success of Lotus 1-2-3 for the IBM PC, although it was largely a flop. Apple introduced Macintosh Office the same year with the lemmings ad.

For a special post-election edition of Newsweek in November 1984, Apple spent more than $2.5 million to buy all 39 of the advertising pages in the issue. Apple also ran a “Test Drive a Macintosh” promotion, in which potential buyers with a credit card could take home a Macintosh for 24 hours and return it to a dealer afterwards. While 200000 people participated, dealers disliked the promotion, the supply of computers was insufficient for demand, and many were returned in such a bad shape that they could no longer be sold. This marketing campaign caused CEO John Sculley to raise the price from $1995 to $2495.

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In 1985, the combination of the Mac, Apple’s LaserWriter printer, and Mac-specific software like Boston Software’s MacPublisher and Aldus PageMaker enabled users to design, preview, and print page layouts complete with text and graphics, it was an activity to become known as desktop publishing. Initially, desktop publishing was unique to the Macintosh, but eventually became available for IBM PC users as well. Later, applications such as Macromedia FreeHand, QuarkXPress, Adobe Photoshop, and Adobe Illustrator strengthened the Mac’s position as a graphics computer and helped to expand the emerging desktop publishing market.

The limitations of the first Mac soon became clear: it had very little memory, even compared with other personal computers in 1984, and could not be expanded easily; and it lacked a hard disk drive or the means to attach one easily. In October 1985, Apple increased the Mac’s memory to 512 KB, but it was inconvenient and difficult to expand the memory of a 128 KB Mac. In an attempt to improve connectivity, Apple released the Macintosh Plus on January 10, 1986 for $2600. It offered one megabyte of RAM, expandable to four, and a then-revolutionary SCSI parallel interface, allowing up to seven peripherals—such as hard drives and scanners—to be attached to the machine. Its floppy drive was increased to an 800 KB capacity. The Mac Plus was an immediate success and remained in production, unchanged, until October 15, 1990; on sale for just over four years and ten months, it was the longest-lived Macintosh in Apple’s history.

At its introduction, the Macintosh was targeted for two primary markets: knowledge-workers and students. Referring to the telephone as the first desktop appliance, Steve Jobs hoped that the Macintosh would become the second desktop appliance. As Bill Gates stated, To create a new standard takes something that’s not just a little bit different. It takes something that’s really new, and captures people’s imaginations. Macintosh meets that standard.

Through the second half of the 1980s, the company built market share only to see it dissipate in the 1990s as the personal computer market shifted towards IBM PC compatible machines running MS-DOS and Microsoft Windows.