Computer Programming 12 Mr. Jean February 11 th, 2012.

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Presentation transcript:

Computer Programming 12 Mr. Jean February 11 th, 2012

The plan: Video clip of the day HW Check Solutions to HW About the computer Tomorrow’s presentation Finish off Friday’s work

HW - Check Please get out Binary Worksheet #2 Checking questions 1 to 3

Solutions to #3a:

Solutions to #3b:

Solutions to #3c:

Solutions to #3d:

The basics:

System Unit:

Central Processing Unit: (CPU)

Flow of information: Input devices. Central Processing Unit (containing the control unit and the arithmetic/logic unit). Memory. Output devices. Storage devices.

Memory (RAM) Memory also called Random Access Memory or RAM (temporary memory) is the main memory of the computer. It consists of electronic components that store data including numbers, letters of the alphabet, graphics and sound. Any information stored in RAM is lost when the computer is turned off. Read Only Memory or ROM is memory that is etched on a chip that has start-up directions for your computer. It is permanent memory.

Hard Disks Another form of auxiliary storage is a hard disk. A hard disk consists of one or more rigid metal plates coated with a metal oxide material that allows data to be magnetically recorded on the surface of the platters. The hard disk platters spin at a high rate of speed, typically 5400 to 7200 revolutions per minute (RPM). Solid state (newer technology & faster) Storage capacites of hard disks for personal computers range from 100 GB to 8 TB (one billion bytes are called a gigabyte).

Input Devices: IE: keyboard, mouse, sound card for microphone, Internet wireless or ethernet cards, USB ports and touch screen interface.

Output Devices: IE: Monitors, speakers, storage devices, USB ports, printers etc…

Operating System Software Operating system software tells the computer how to perform the functions of loading, storing and executing an application and how to transfer data. Today, many computers use an operating system that has a graphical user interface (GUI) that provides visual clues such as icon symbols to help the user. Microsoft Windows 8 (XP, Vista & 7) are a widely used graphical operating system. DOS (Disk Operating System) is an older but still widely used operating system that is text-based.

Application Software Application Software consists of programs that tell a computer how to produce information. Some of the more commonly used packages are: Word processing Electronic spreadsheet Database Presentation graphics

Solutions to #3a:

Solutions to #3b:

Solutions to #3c:

Solutions to #3d:

Location of textbook: My Computer, chdpassout, computer programming 12

To do: Finish off the About Me ppt Finish off the Most Important Advances in Computing ppt.