Editing Acorn Electron (section)

===Slogger Master RAM Board===
Introduced at around the start of 1987 and priced at £64.95 fitted or £54.95 as a kit, the Master RAM Board offered the familiar turbo mode from the Slogger Turbo-Driver alongside a shadow mode providing 32&nbsp;KB of static [[Shadow RAM (Acorn)|shadow RAM]] in addition to the existing 32&nbsp;KB dynamic RAM, thus giving 64&nbsp;KB in total RAM. So-called "legally written software", this being software using the operating system calls and not writing directly to the screen, could function without significant modification, making substantially more memory available for BASIC, View, Viewsheet, language ROMs and many other applications.<ref name="electronuser198701">{{ cite magazine | url=https://archive.org/details/ElectronUserVolume4/Electron-User-04-04/page/n58/mode/1up | title=Ramming home more memory | magazine=Electron User | volume=4 | issue=4 | date=January 1987 | access-date=18 January 2021 | last1=Pritchard | first1=Joe | pages=59–60 }}</ref> By providing extra storage this modification also allowed some games and applications intended for the BBC Micro to function on the Electron despite the lack of a native Mode 7.<ref name="andysarcade">{{cite web | title = Andy's guide to using BBC software on a 64K modified Acorn Electron. | url = http://www.andysarcade.net/personal/elk/64kmod/64kelectron.htm | access-date = 4 July 2008}}</ref>

Applications could not directly address video memory in shadow mode without modification, so it was incompatible with most games, although there is no inherent reason why a game could not be written to function in shadow mode. A switch mounted through the case switched between normal, turbo and shadow modes. Despite providing an extra 32&nbsp;KB, shadow mode potentially left up to 12&nbsp;KB of the Electron's original dynamic RAM unused, with limited initial support provided for the use of this lower memory region.<ref name="acornuser198704">{{ cite magazine | url=https://archive.org/details/AcornUser057-Apr87/page/n147/mode/2up | title=Slogging it out | author=Emblem, Bernard | magazine=Acorn User | date=April 1987 | access-date=29 August 2020 | pages=146–147 }}</ref> However, Slogger later supported its use in its own printer buffer software, and the programming interface concerned was elucidated in a series of magazine articles.<ref name="electronuser198804_shadows">{{ cite magazine | url=https://archive.org/details/ElectronUserVolume5/Electron-User-05-07/page/n44/mode/1up | title=Staying in the Shadows | magazine=Electron User | volume=5 | issue=6 | date=April 1988 | access-date=5 May 2025 | last1=Nixon | first1=Chris | pages=45–46 }}</ref>

Towards the end of the Electron's commercial lifetime, the Turbo-Driver and Master RAM Boards were offered already fitted to new Electrons in an attempt to increase sales. For a time, Jafa Systems manufactured their own equivalent of the Master RAM Board in order to support their own product range.<ref name="andysarcade" />