Z80CPM vs Disk Reserve

RomWBW CP/M brings the classic CP/M operating system to your iPhone, iPad, and Mac with a full Z80 processor emulator. FEATURES • Full Z80 Emulation - Accurate instruction emulation runs authentic CP/M software • VT100 Terminal - ANSI escape sequence support for text adventures and productivity apps • Multiple Disk Support - Mount up to 4 disk images simultaneously • Download Disk Images - Fetch CP/M disk images directly from the RomWBW project • Works Offline - Downloaded disk images are stored locally • Native Mac Support - Runs natively on macOS via Mac Catalyst CLASSIC SOFTWARE Run the software that defined personal computing: • Operating Systems: CP/M 2.2, CP/M 3, ZSDOS, NZCOM, ZPM3 • Word Processing: WordStar • Programming: Turbo Pascal, Microsoft BASIC • Text Adventures: Zork, Adventure, Hitchhiker's Guide to the Galaxy • Databases: dBASE II • And thousands more CP/M programs GETTING STARTED 1. Open Settings and download a disk image (CP/M 2.2 recommended) 2. Select the disk image for Unit 0 3. Press Play to start the emulator 4. Press 0 at the boot menu to boot from disk BUILT ON ROMWBW This emulator is built on the RomWBW HBIOS platform, the same firmware used by real retro Z80 hardware projects. Disk images are downloaded from the official RomWBW project and include freely distributable CP/M software. TECHNICAL DETAILS • 80x25 character terminal display • hd1k disk format (8MB per slice, 64MB per disk) • Hardware keyboard support • Portrait and landscape orientation Perfect for retrocomputing enthusiasts, computer history education, or anyone who wants to experience the operating system that launched the personal computer revolution.

Disk Reserve is a personal storage buffer for your iPhone and Mac—not a cleaner, optimizer, or junk file scanner. Reserve capacity before storage gets tight. When you need the space back, release it in one tap. HOW IT WORKS • Reserve — Set aside real disk space as your personal buffer • Release — Return reserved space to your device anytime • Visual dashboard — See Available, Reserved, and Used at a glance FREE FOREVER • Reserve up to 1 GB at no cost • Release is always free — no paywall on release PREMIUM (ONE-TIME PURCHASE) • Unlimited reserve capacity • No subscription · No ads • Restore Purchase supported on all your devices Built for people who want a simple buffer before big downloads, shoots, or cache spikes—not another “clean my phone” app. Requires iOS and macOS with available local storage. Reserved space uses real disk allocation on your device.