Address - Where a Byte lives in memory lane.Always Expressed as combinations like C48A or B20E;this is the PC supposedly 'program counter'but clearly is really the 'postcode'. Bug - Mistake in a program,occasionally called 'feature' by the distributers. Byte - Just enough space for one letter, or number below 255,i.e just one bit of information except that a byte is 8 bits. CAD - 'Computer Aided Design',the idea of doing your technical drawing on computer instead of on a piece of paper,also stands for crude and disappointing. Comms - 'Communications' the idea that people can communicate with each other over the phone by computer on common interests ,I.e comms Data - Information ,but easier for the manual writers to spell Endless Loop - See 'infinite loop' Envirionment - useless add-on word.Talk about MS-DOS but much more impressively 'MS-DOS environment',In the same way ' wimp environment','lotus environment' etc. Files - Any single thing stored on a disc: a program some data for a program(e.g details on your stock of nails.. a nail file). Hardware - The difference between hardware (equipment) and software(programs) Is this:Hardware starts off working ok,but more and more things go wrong the older it gets,software starts off full of bugs but more and more of them get put right the older it gets. Infinite loop - see 'endless loop' K - Kilobyte .measurement of space Equal to 1024 characters from the greek kilo meaning 1000 ,because nobody knew what 1024 was in greek Menu - list of options you have at a point in a program ,Just like a resturant menu -i.e everything has misleading names and what you want is never availible Modem - Device enabling your computer to link up to the phone network at great expense and enable you do things from your armchair like pay phone bills. Mouse - Hand size box which runs on a ball and moves a pointer on the screen -by clicking the mouse button you activate the thing pointed to. make people believe it is an acronym for Manually Operated Utility Selection Equipment'.Computer people really thought 'mice' look like mice,It Is'nt. Recursion - see 'Recursion' Technical support - The providing of free advice on how to use the program by the suppliers after you've brought it .So called because,while they provide support technically,in practice they are always engaged when you phone,and when you do finally get through the've gone bust. Rem - Line put in to the program which is not an instruction comprehensible to the computer.It is a remark equally incomprehensible to the programmer when they come to debug it months later. ROM - Read Only Memory -two ROM's don't make a Write. Upgrade - improved version of a program with the old bugs taken out and new ones put in.