Match the following notions (1-10) and their descriptions (a-j). 1) software 2) spreadsheets 3) e-mail 4) memory 5) to crash 6) a virus 7) network 8) to print 9) VDU 10) a floppy disk a) the programs needed to work the machines b) to stop working c) the part of a computer in which data or program instructions can be stored for retrieval d) a machine with a screen which is used to display information from a computer e) a computer program in which figures arranged in the rows and columns of a grid can be manipulated and used in calculations f) a system of sending written messages electronically from one computer to another g) a small magnetic disk that is used for storing computer data and programs h) a number of interconnected computers, machines, or operations i) a piece of code which is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data j) to produce (text or a picture) by a printing process