PC Operations & File Management: Hardware, Software, Storage, Protection, Slides of Learning processes

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Basic PC Operations

and File Management

Applications

Hardware and Software

• Hardware – Parts You Can Touch
  • Peripheral – Attachments, i.e. Printer
• Software – Electronic Instructions
  • Operating System - i.e. Windows XP
  • Application Software – i.e. MS Word

Storage Measurement

• Byte – Approximately 1 Character
• Kilobyte (K) – 1,024 Bytes
• Megabyte (MB) – 1,048,576 Bytes
• Gigabyte (GB) – 1,073,741,824 Bytes
• Terabyte (TB) – 1,099,511,627,776 Bytes

Typical Computer

Components

• Computer Case
• Monitor – CRT or LCD (Flat Panel)
• Printer – Laser or Ink-Jet
• Modem – Telephone or Cable
• Keyboard
• Mouse
• Network or LAN

Monitor Considerations

• Resolution – Measured in Pixels
  • 640 x 480 – Clearly View Larger Images
  • 800 x 600
  • 1024 x 768
  • 1280 x 1024 – More Information at Once
• Dot Pitch – 0.28 or Less

Memory Considerations

• Electronic Blackboard – Bytes of Memory
• ROM – Permanent Instructions
• RAM – Main Memory (Volatile)
• CPU - Speed Measured in Gigahertz (GHz)
• Chip Type – Pentium 4
• Gigahertz – 1 Billion Cycles Per Second

Communication Ports

• Parallel Port – 25 Pins, Female
• Serial Port – 9 or 25 Pins, Male
• Monitor Port – Connects Monitor
• Keyboard Port – Connects Keyboard
• Game Port – Connects a Joystick
• Universal Serial Bus (USB) Port
  • Connects Up to 127 Devices

Mouse Actions

• Click – Selects an Item on the Screen
• Drag and Drop – Moves Item on Screen
• Double-Click – Opens Document or Program
• Right-Click – Displays a List of Commands
• Wheel Mouse – Scroll and Zoom

Hard Drive Considerations

• Stores Programs and Data
• Read/Write Heads
• File Folders – Like a File Cabinet
• Capacity – Such as 120 Gigabytes
• SCSI – Fastest and Least Expensive Connection of Hard Drive to Other Devices - Small Computer Systems Interface
• Disk Cache – Memory Area for Recent Data

Hard Drive Optimization

• Repair Facility – Once a Month
• Defrag – Once a Month
• Archive Seldom Used Files Onto

Tape Backup to Open Up Space

• Zip Files for Transmission Over

Internet

Typical Word Processing

Functions

• Create Documents
• Edit Documents
• Format Documents
• Print Documents
• Insert and Format Graphics
• Create Tables
• Mail Merge Applications

Typical Spreadsheet

Functions

• Manage Finances
• Manage, Sort, Organize, and Retrieve

Data

• Formulas and Functions
• Editing Data
• Formatting to Enhance Appearance
• Charting (Graphing) to Summarize Data

Application Suite Advantages

• Microsoft Office XP Suite (or 2003)
• Costs Less Than Buying Each Component
• Easy to Use – Commonalities
• Integration of Data Between Programs
• Sharing Data More Functional
• Collaboration of Tasks Easier

Utility Software Programs

• Norton Utilities – Virus and Firewall
• McAfee – Virus and Firewall
• Acrobat Reader – View Portable Documents
• WinZip – Unzip Compressed Files
• Flash Reader – Accessing Internet Sites
• Windows Media Player – Plays Internet Audio

and Video Files