The specifications of the original QL :

Processor 		7.5MHz Motorola MC68008

RAM 			128KB, expandable to 640KB or 896KB

ROM 			48KB on board - QDOS and SuperBASIC

Plug-in ROM 		16KB via ROM connector port

Storage 		Two 100KB microdrives (removable tape loop cartridges)

Display 			512x256 in 4 colours, 85x25 text; 256x256 in 8 colours, 42x25 text

Operating system 	QDOS, Single user pre-emptive multitasking

Expansion ports 	Main I/O connector, EPROM connector, 2 joystick ports, 2 RS-232-C ports, 
			TV modulator, RGB monitor, Composite video, External microdrives, 
			2 QL network sockets.

programming language 	QL SuperBASIC (Sinclair's structured BASIC interpreter)

Supplied software 	Quill word processor, Abacus spreadsheet, Archive database, Easel business graphics. 
			Some QLs were also supplied with a games cartridge.