Free software - first grade

	SUGAR PALM TREE TRANSLATOR	requires: Web browser and Internet connection
	Khmer <-> English translator which often preserves meaning better than Google Translate. Uses a neural network.
	LINKS	requires: Linux, or Cygwin under Windows, or BSD, etc.
	Web browser running in both graphics and text mode. No Flash, CSS, Javascript supported. High speed and graphics display quality
	0VERKILL	requires: Linux, Windows, or OS/2
	Game - ASCII-ART bloody 2D deathmatch
	Z80-ASM	requires: Linux, DOS
	Zilog Z80 processor assembler and monitor (including disassembler)
	JET SET WILLY X	requires: ZX Spectrum or emulator
	Videogame, 8-bit jump-platform

Second grade - commandline skill required

	JPEGINSERT	requires: Linux
	Insert large data into 1992 spec. JPEG files without using steganography or EXIF
	OPTAR	requires: Linux
	OPTical ARchiver. Prints 200kB of data on A4 page with laser printer, you scan it with a scanner and feed into decoder program. Has an error correction code. Also known as 2D barcode
	LUMINAPLEX	requires: Linux
	Video encoding algorithm family to encode ordinary 4:2:0 and 4:2:2 Y'CbCr with unprecedented colour detail quality
	VNCREC	requires: Linux
	Records a video of a VNC session into a YUV4MPEG2 file, which can be later encoded into usual video formats. Meant for making instructional videos
	TWIG	requires: Linux
	Online photogallery with multi-level previews
	SYNTRING	requires: C compiler
	String synthesizer, low-profile ASCII tablature. Algorithmic synthesis, no Karplus-Strong, supports inharmonicity
	REGISTRATOR	requires: Linux
	Multiple photography noise reduction or resolution quadrupling. 16-bit per colour channel, psychophysical Kalman filter, fog removal
	PITCHOTRON	requires: Linux
	A musical transciption analyzer. Produces a rolling time display video from audio with individual halftones labeled and colour coded.
	CASANOVA	requires: C compiler
	Dating chat hinter. Casanova stores conversation in pairs into a database, like B was replied to A. Then you give it what the other party says and Casanova suggests what you should reply.