``` 10 SPECTRUM PAPER 2: SPECTRUM BRIGHT 1: SPECTRUM INK 7 20 ERASE: REM ERASES ALL LINES ``` Then ``` SAVE "c:/nextzxos/autoexec.bas" LINE 10 ``` Reset and... magic! ### CP/M The ZX Spectrum Next supports running *CP/M Plus* (also known as *CP/M 3.0*), an operating system available for many microcomputers in the late 1970s and early 1980s. *CP/M* provides a command-line environment similar to *MS-DOS*. A huge amount of software was available for it, including programming languages, both interpreted and compiled, word processors (such as the well-known WordStar), spreadsheets, databases, utilities, text-based games and much more. The ZX Spectrum Next runs *CP/M Plus* using a specially-written *BIOS* (Basic Input/Output System) which gives it a 80 x 24 text-based terminal supporting full colour. To run *CP/M*, you need to call up the *NextZXOS Startup menu*, go to the *More... submenu* and select the *CP/M* option or from *NextBASIC* or the *Command Line*, use the d*ot command* .cpm. Any software, compatible with *CP/M-80*, *CP/M 2.2*, *CP/M 3.0* or *CP/M Plus* will work on the ZX Spectrum Next's flavour of *CP/M* except *CP/M-86* software (which requires an Intel x86 processor) and *CP/M-68* software (which requires a Motorola MC68K class processor).  ``` Welcome to the CP/M 3.0 BIOS for the ZX Spectrum Next! In order to start using CP/M on your Next, you will need to download the following file which contains important CP/M components: http://www.cpm.z80.de/download/cpm3bin_unix.zip (Note that this file is free for personal use but cannot be distributed directly with the ZX Spectrum Next.) Once downloaded, extract all the files into the C:/NEXTZXOS/CPM directory on your Next's SD card and re-run CP/M from the main menu. This program will then automatically import the required files. Importing: BNKBDOS3.SPR ``` *Fig. 28 – Initial CP/M setup procedure* Please note that *CP/M* graphical applications requiring *GSX* cannot be used at the moment, although support for these is under consideration. This is not affecting software availability considerably, as there is very little software requiring *GSX*; most *CP/M* software was text-based. #### Getting started Before you can use *CP/M*, *NextZXOS* will need to prepare it. This is a process that happens automatically just once. You will need to access your *NextZXOS Startup Menu*, then from the *More...* option, select the *CP/M submenu*. NextZXOS will start working on its own and once it finishes, it will exit back to *NextZXOS*. From then on, every time you choose the