The Visible Computer Chapter 3

Historical/Conceptual Charles Babbage developed the first programmable computing device A modern computer is an electronic device that can perform calculations

The Computing Process Types of Computing Devices The Computing Parts General purpose Single task Embedded The Computing Parts Hardware Operating system Applications

The Computing Process Stages Why the Process Matters to Techs Input Processing Output Data storage Network connection Why the Process Matters to Techs The commonality of devices allows one to work on any device with some patience

The Computing Process Breaking It Down Power up. Processing parts prepare for action You provide input Processing parts process your command Processing parts send output information to your output devices Output devices show you the results Repeat steps 3 – 6 until you’re satisfied with the outcome Save your work Power down the computer

Computing Hardware See figure 3-12 See figure 3-13 See figure 3-14

Computing Software Common Operating System Functions The OS communicates with the hardware of the PC or device. The OS creates a user interface (UI) The OS enables users to determine the available installed programs and data The OS enables users to add, move, and delete the installed programs and data The OS provides a method to secure a system from all sorts of threats

Computing Software User Interfaces Windows Vista/7 Windows 8/8.1 Mac OS X Linux

Computing Software File Structures and Paths Windows Mac OS X Linux C:\Program Files (All versions) C:\program Files (x86) Personal Documents C:\Users\Mike\Desktop C:\Users\Mike\Documents C:\Users\Mike\Downloads C:\Users\Mike\Music C:\Users\Mike\Pictures C:\Users\Mike\Videos Mac OS X Linux

Computing Software The Tech Launch Points Windows Vista/7 Control Panel System Tools Command Line Windows 8/8.1 Administrative Tools Windows 10 Settings App Mac OS X System Preferences Utilities Folder Linux Unity (Ubuntu Desktop) GNOME 3 (Fedora, Red Hat) KDE Plasma Desktop (OpenSUSE, Kubuntu)