Xerox PARC

Module 1 Section 4 4.1         Xerox PARC - Introduction Other than photocopiers, all the life-threatening ideas in computing soon in character polish discharge be traced back to PARC, including:         The natural lend oneselfr interface: such as the Macintosh and Windows operating(a) systems.         Ethernet: a common method of linking PCs together and PCs to printers.         Object-oriented programming: forthwith the about common method of programming.         The optical maser printer. ________________________________________ 4.2         GUIs and WYSIWYG         Modes: the precursor to WYSISYG. stimulant path would be employ for creating a enrolment and turn off elan for editing. Changing mode made preparing a inscription complicated beca employ the screen expose differed from what you would obtain from your printer. After modes, there was the use of WYSIWYG         WYSIWYG: what you see is what you get a system that allows you to see on screen more or less what will be printed. A mouse or other pointing device basin be used to insure text, graphics and numbers. For WYSIWYG to be possible it was necessary to obtain a Graphical meat abuser Interface         Graphical substance abuser Interface (GUI): an interface in which the cursor can be moved, text can be highlighted and several(prenominal) documents opened at the kindred time. To do all this, the utilise science of bit-mapping was required.         Bit-mapping: a technique used to represent images; images argon divided up into cells and a value is allocated to each cell. Bit-mapping is used in         Sending a fax.

The low: was the first machine to use a GUI. ________________________________________ 4.3         Ethernet Benefits from connecting computers together in a engagement         Sharing resources         Communication          excite access Networks can be classified by 1.         Topology: The ascertain of the networks somatic structure. The three briny network types a)         Star network: a network coherent in a star shape with a key or hub computer and several guest computers. A network of automated... If you wish to get a full moon essay, order it on our website: Ordercustompaper.com

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