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Tuesday, September 24, 2013

Introduction to Powerpoint

Microsoft Powerpoint 2007

  • A Power Point is designed to help you achieve a consistent look in your slide presentations.


  • You want your audience to focus on the message and not be distracted by poor and inconsistent design from one slide to the next.


  • You can achieve this consistency by using Templates, or pre-designed slide presentations, that coordinate background colors and designs, font styles and placement, and other graphic design elements. 


  • Through a Power Point presentation, you as a trainer have the power to control the subject and also ensure that the audience sees what you want them to see and agree with your perspectives and your points of view
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Introduction to Excel

What is a Spreadsheet?
  A spreadsheet is the computer equivalent of a paper ledger sheet.
  It consists of a grid made from columns and rows.
  It is an environment that can make number manipulation easy and somewhat effortless.

Types of Spreadsheets:
Manual – creating a worksheet on a ledger
or columnar paper using a pencil/pen,
  calculator, and eraser.

Electronic – A computer-generated
  spreadsheet that makes the basic tasks much easier.

Spreadsheets are made up of :
 columns – identified with alphabetic headings
 rows - identified with numeric headings
 and their intersections are called cells 
 (Cell references: B4, A20)

In each cell there may be the following types of data:
 text (labels)
 number data (constants)
 formulas (mathematical equations that do all the work) 

Formulas ALWAYS begin with an  =   sign.  This “tells” Excel that a calculation will need to be performed.
Reference cells, NOT the numbers in them!

There are two ways to enter information into a cell:
1. Type directly into the cell.
Click on a cell, and type in the data (numbers or text) and press Enter.
2. Type into the formula bar.
Click on a cell, and then click in the formula bar.  Now type the data into the bar and press Enter.

Microsoft Excel 2007 Window
Microsoft Excel is an electronic spreadsheet. 
 - You can use it to organize your data into rows and columns.
 - You can also use it to perform mathematical calculations quickly.

Microsoft Office Button
When you click the button, a menu appears.
You can use the menu to create a new file,
open an existing file, save a file, and perform many other tasks.

Quick Access Toolbar
provides you with access to commands you frequently use.
By default, Save, Undo, and Redo appear on the Quick Access toolbar.
You use Save to save your file, Undo to rollback an action you have taken,
and Redo to reapply an action you have rolled back.

Title Bar
The Title bar displays the name of the workbook on
which you are currently working. Microsoft Excel
displays the name of the workbook you are currently using.
At the top of the Excel window, you should see
"Microsoft Excel - Book1" or a similar name.

Ribbon
Microsoft Excel 2007, you use the Ribbon to issue commands.
At the top of the Ribbon are several tabs;
clicking a tab displays several related command groups.
 Within each group are related command buttons.
 You click buttons to issue commands or to access
menus and dialog boxes. You may also find a dialog box
launcher in the bottom-right corner of a group. When you
click the dialog box launcher, a dialog box makes additional
commands available.

Cells
The combination of a column coordinate and a
row coordinate make up a cell address.
For example, the cell located in the upper-left
corner of the worksheet is cell A1, meaning column A, row 1.

Formula Bar
If the Formula bar is turned on, the cell
 address of the cell you are in displays
in the Name box which is located on the left side of
 the Formula bar. Cell entries display on the right side
of the Formula bar. Note: The current cell address displays
 on the left side of the Formula bar.

Status Bar
Display information such as the sum, average, minimum, and maximum value of selected numbers. You can change what displays on the Status bar by right-clicking on the Status bar and selecting the options you want from the Customize Status Bar menu. You click a menu item to select it. You click it again to deselect it. A check mark next to an item means the item is selected.

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Computer Networks

What is a Network?

Network: A connected system of objects or people

Computer network: A collection of computers and other hardware devices connected together so that users can share hardware, software, and data, as well as electronically communicate with each other.

Internet: Largest computer network in the world

Types of networks:
    Business networks,
    Phone networks,
    Home
    Multimedia networks

Common Uses for Computer Networks
  1. Sharing a printer or an Internet Connection among several users.
  2. Sharing application software with a network license, which can be purchased less expensively and which  needs to be installed and updated on only one computer.
  3. Working collaboratively, such as sharing a company database or using a collaboration tools to create or   review documents.
  4. Exchanging files among network users and over the internet
  5. Connecting the home computers and the entertainment devices, (such as TVs, gaming consoles, and stereo systems) located within a home.

Networking and Communications Applications:

1. Global positioning system (GPS): Uses satellites and a receiver to the exact geographic location of the receiver
  a. Commonly found in cars today
  b. Available as handheld units
  c. Used by the military, hikers, travelers, and others who need to know their precise

2. Videoconferencing: Use of communications technology for real-time, face-to-face meetings between individuals located in different places
  a. Technology continues to improve and mimic reallife environments
  b. Telepresence videoconferenceing
  c. Online conferencing ( via the Internet)
  d. Video phone calls

Types of Network Topology: How the devices in the network (called nodes) are arranged
  1. Star networks: All devices connect to a central device or hub)
      - All computers/devices connect to a central device called hub or switch.
      - Each device requires a single cable
      - Point-to-point connection between the device and hub.
      - Most widely implemented
      - Hub is the single point of failure

  2. Bus networks: All devices connect to a central cable
      - Uses a trunk or backbone to which all of the computers on the network connect.
      - Systems connect to this backbone using T connectors or taps.
      - Coaxial cablings ( 10Base-2, 10Base5) were popular options years ago.

  3. Ring networks: Devices connect to one another in a ring
      a. Logical ring
          -Meaning that data travels in circular fashion from one computer to another on the network.
      - Ring networks are most commonly wired in a star configuration
      - Token Ring has multi-station access unit (MSAU),equivalent to hub or switch. MSAU performs the     token circulation internally.

  4. Mesh networks: Multiple connections between devices
      - Each computer connects to every other.
      - High level of redundancy.
      - Rarely used.
      - Wiring is very complicated
      - Cabling cost is high
      - Troubleshooting a failed cable is tricky
      - A variation hybrid mesh
      - create point to point connection between specific network devices, often seen in WAN
         implementation.
  5. Some networks use a combination of topologies

Internet Terms to be Familiar with:
Browser - Contains the basic software you need in order to find, retrieve, view, and send information over the Internet.

Download - To copy data from a remote computer to a local computer.

Upload - To send data from a local computer to a remote computer.

E-mail - (electronic mail) is the exchange of computer-stored messages by telecommunication. E-mail can be distributed to lists of people as well as to individuals. However, you can also send non-text files, such as graphic images and sound files, as attachments sent in binary streams.

Home Page - The beginning "page" of any site.

HTML (HyperText Markup Language) - The coding language used to create documents for use on the World Wide Web. There are three-letter suffixes used in coding that help to identify the type location one is viewing

HTTP (HyperText Transport Protocol) - the set of rules for exchanging files (text, graphic images, sound, video, and other multimedia files) on the World Wide Web. Relative to the TCP/IP suite of protocols (which are the basis for information exchange on the Internet), HTTP is an application protocol.
¨Search Engine - A web server that collects data from other web servers and puts it into a database (much like an index), it provides links to pages that contain the object of your search.

TCP/IP - TCP/IP (Transmission Control Protocol/Internet Protocol) is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network (either an intranet or an extranet). When you are set up with direct access to the Internet, your computer is provided with a copy of the TCP/IP program just as every other computer that you may send messages to or get information from also has a copy of TCP/IP.

URL (Uniform Resource Locator) - The Internet address. The prefix of a URL indicates which area of the Internet will be accessed. URLs look differently depending on the Internet resource you are seeking.

WWW (World Wide Web) - A technical definition of the World Wide Web is: all the resources and users on the Internet that are using the Hypertext Transfer Protocol (HTTP).

Internet
- An information system
- Communication tool
- A large network of computer systems world wide can be explored by using a Web Browser
- Services available through the Internet:
    - Email (Discussion groups,Chat Rooms, etc.)
    - Information search (including research)
    - Education (Online courses; virtual colleges)
    - Entertainment, News, and more…...

Evolution of the Internet
ARPANET: The predecessor of the Internet, named after the Advanced Research Projects Agency (ARPA), which sponsored its development
    - Initially connected four supercomputers
    - Eventually grew into today’s Internet

The World Wide Web: The collection of Web pages available through the Internet
    - Proposed by Tim Berners-Lee in 1989
    - Originally only text-based content
    - Release of the graphical Mosaic browser in 1993 led to graphical content
    - Wide variety of content available via Web pages today

Internet: Researches advanced Internet applications and technologies

Web Browsers
- You use this software to view different locations on the Web, which are known as Web pages. A group of Web pages is a Web site. The first page of a Web site is often called the home page.

- Software programs used to access the World Wide Web (WWW)
- Most popular web browsers:
      a. Google Chrome
      b. Microsoft Internet Explorer
      c. Mozilla Firefox
      d. Apple Safari

Search Engines
- A program that connects you to a database or Web address
- used to perform a thorough search
- Some Popular Search Engines
- Google search, Alta Vista, Excite, Hotbot, Lycos, InforSeek, etc.
- Random Browsing (takes too much time)
- Mark Favorite Sites (bookmark the sites)
- Use several Search Engines for a thorough search

Some Well Known Search Engines
- Yahoo! Search
www.yahoo.com

- Google Search
www.google.com

- Bing ”Live Search, Windows Live Search, and MSN Search”
www.bing.com

Email
- E-mail stands for Electronic Mail.
- It is one of the most widely used features of the Internet.
- Mails are regularly used today where with the help of postage stamp we can transfer mails anywhere in the    world.
- With electronic mail the service is similar but here data are transmitted through Internet and therefore within    minutes the message reaches the destination anywhere in the world.

Email Components
- You may have an e-mail account through a business network or you may create an e-mail account with a service that provides Internet access.
- An e-mail address consists of:
   a. A user name or login ID
   b. The “at” symbol (@)
   c. The name of the e-mail server

Understanding Email
- E-mail, or electronic mail, is an efficient way to exchange messages with others on a network.
- This network may be small and self-contained, such as within an office, or as large as the Internet.
- E-mail messages can go to only one recipient or to dozens of recipients at once.
- When you send a message, it travels through the network to an e-mail server.
- The e-mail server stores messages until the recipient(s) request them.

Web Address (URLs)
- Each computer on the Internet has an unique identification number, called an IP (Internet Protocol)               address.

- Each part of the address is a number ranging from 0 to 255, and each part is separated from the previous
  part by a period, for example: 106.29.242.17.

- Although each computer connected to the Internet has a unique IP address, most Web browsers use domain name addressing to locate Web sites and pages.

Understanding System Software


Operating Systems and Utility Programs

Operating system:  A collection of programs that manage and coordinate the activities taking place
                            within a computer system

Functions of an Operating System:
1. Interfacing with users (typically via a GUI)
2. Booting the computer
3. Configuring devices
    a. Device drivers are often needed
    b. Plug and Play devices are recognized automatically
4. Managing resources and jobs
5. File management
6. Security

Processing Techniques for Increased Efficiency
1. Multitasking: The ability of an operating system to work with more than one program (task) at one time.
     a. CPU rotates between tasks
     b.Tasks are performed concurrently
     c. Multi-programming: Multitasking with a multi user operating system

2. Multithreading: The ability to run multiple threads for a program at one time so that processing is completed faster and more efficiently CPU rotates between tasks
      a. Thread: Sequence of instructions within a program that is independent of other threads

3. Multiprocessing: Multiple processors are used in a single computer, usually to process multiple jobs at one time faster than with a single processor
      a. Simultaneous processing
       b. used with servers and mainframes; used with
       c. desktop PCs now (dual-core processors)

4. Parallel processing: Multiple processors are used in a single computer, usually to process a single job faster
       a. Simultaneous processing
       b. Most often used with supercomputers

5. Coprocessing: Utilizing special processors for specialized chores
       a. Math and graphics coprocessors

6. Memory management: Optimizing the use of main memory (RAM)
       a. Virtual memory: Memory-management technique that uses hard drive space as additional RAM

Operating Systems for Desktop PCs
1. Windows Vista: Most recent version of Windows
     a. Features the Aero visual interface
         i. Transparency and animations
         ii. Live Thumbnails
     b.The Vista Start menu is more streamlined
     c. Built-in security features
     d. Improved networking ands multimedia
     e. Additional features
         i.Sidebar, Instant Search, etc.
     f. Hardware requirements for Vista have increased over earlier versions of Windows
     g. Four editions (Home Basic, Home Premium, Business, and Ultimate)

2. Mac OS: Proprietary operating system for computers made by Apple Corporation
    a.Based on the UNIX operating system; originally set the standard for graphical user interfaces
    b.Mac OS X Leopard: Most recent personal version
    c.Mac OS X Server: Most recent server version
    d.Includes
       i.Support for 64-bit processors
       ii.Safari Web browser
       iii.New features like Time Machine, Stacks, Quick Look, Boot Camp, etc.

Utility Programs
     Utility program: Type of software that performs a specific task, usually related to managing or                     maintaining the computer system
     a. Many utilities are built into operating systems (for finding files, viewing images, backing up files, etc.)
     b. Utilities are also available as stand-alone products and as security suites

Some Common Examples of Utility Programs
     1. Search tools: Designed to search for files on theuser’s hard drive
         a.Windows Vista includes new search tools
     2. Diagnostic programs: Evaluate your system and make recommendations for fixing any errors found
     3. Disk management programs: Diagnose and repair problems related to your hard drive
     4. File compression programs: Reduce the size of files so they take up less storage space on a storage
          medium or can be transmitted faster over the Internet
         i. Both zip and unzip files
         ii. WinZip (Windows users) and Stuffit (Mac users)

     5. Uninstall utilities: Remove programs from your hard drive without leaving bits and pieces behind
         i.Uninstall capabilities are built into most operating systems
         ii.Uninstall utility programs are also available as stand-alone programs
         iii.Sometimes an uninstall option is included in a program’s folder when that program is originally
             installed
         iv. Important to properly uninstall programs, not just delete them
     6. Cleanup utilities
         i.Designed to delete temporary files
     7. Security programs: Protect computers and users
         i. Antivirus programs
         ii. Antispyware programs
         iii. Firewalls
         iv. Many are included in Windows and other operating systems
     8. File management programs: Enable the user to perform file management tasks, such as:
         i. Looking at the contents of a PC or storage medium
         ii. Creating folders
         iii. Copying, moving, and renaming files and folders
         iv. Deleting files and folders
         v. File management program in Windows is Windows
         vi. Explorer