ZX Spectrum: Difference between revisions
no edit summary
Haggishunter (talk | contribs) (→Joystick interfaces: +detail) |
Haggishunter (talk | contribs) No edit summary |
||
Line 46:
|-|
Ports=
Connectors were kept to a minimum to control costs and speed up the initial launch. Other ports became available via add-ons.
* 3.5mm "Mic" and "Ear" jacks (actually line-out and line-in respectively, as they were meant to be plugged in to the same-named ports on a cassette recorder).
* 9V DC in.
* TV out (coaxial providing an analogue UHF signal).
* Edge Connector/expansion bus - literally the edge of the motherboard, sporting a double row of printed tabs.
</tabber>
----
Line 127:
=== Add-ons ===
Sinclair released several add-ons to extend the Spectrum's functionality, and numerous other companies got in on the action. The ZX printer, already released for use with the ZX81,
All Spectrum add-ons
Attachments included:
Line 136:
* Romantic Robot's "Multiface". Allowed any running program to be frozen and inspected, using an internal buffer memory to run user code. Magazines frequently published "Multiface cheats", which were mostly memory addresses to be zeroed to get infinite lives in various games.
==== Joystick interfaces ====
Some of the earlier joystick interfaces included ROM cartridge slots, but the cartridges never caught on: only ten commercial games were
* ZX Interface 2 - The official one, sporting two joystick ports and the original ROM cartridge connector. The joystick part was built in to the Spectrum +2. Joystick movements simulate number key presses (1-5 for the left stick, 6-0 for the right) to make life easier for game developers.
* Kempston - the most popular, launched before the Interface 2.
Line 142:
* Protek.
* Fuller.
* RAM Turbo - one of several attempts to combine multiple joystick protocols in one unit. At least two of the protocols worked, and it had a reset button
==== Printers ====
*
*
*
==== Others ====
* ZX Interface 1 - released by Sinclair shortly after the first Spectrum. Provides an [[w:RS-232|RS232]] port and connectors for Microdrives<ref>A midget data tape produced by Sinclair</ref> and a proprietary network.
|