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Welcome students, I look forward to working with you this semester, check this site frequently for updates and assignments.
~ JON ~
| Chapter 3 Notes |
| Chapter 4 Notes |
| Chapter 5 Notes |
| Chapter 6 Notes |
| Chapter 7 Notes |
| Chapter 8 Notes |
| Chapter 9 Notes |
| Port Identification |
~ IST ~
Chapter 5
Using System Software:
The Operating System, Utility Programs, and File Management
• System software
• Operating systems:
– Control computer functions:
• Hardware
• Memory
• Application programs
• System maintenance
– Kinds of systems
• Real-Time (RTOS)
• Systems with a specific purpose and a certain result
• EX: Cars
• Single-User, Single-Task
• Perform one task at a time
• EX: PDA
• Single-User, Multitask
• Perform simultaneous tasks
• EX: windows, mac
• Multiuser
• Known as network operating systems
• Allow access to the computer system by more than one user
• EX: Unix
– Common desktop systems
• Microsoft Windows
• MAC OS
• UNIX
• Linux
– User interaction
• Enables you to interact with the computer
• Types of interfaces:
• Command-driven interface
• Menu-driven interface
• Graphical user interface
– Manage hardware
• Device drivers:
• Programs that enable the operating system to communicate with peripheral devices
• Provided by the manufacturer of the device
• Plug and Play:
• Hardware and software standard
• Facilitates the installation of new hardware
– Start the computer
• Non-system disk or disk error
• Remove the floppy from the drive and press any key
• POST errors
• Single beep: Everything is loading properly
• Series of beeps: Hardware problem
• Safe mode
• Windows does not boot properly
• Uninstall any new devices or software
• Desktop and windows features
• Utility programs
– Programs that perform computer housekeeping tasks:
– Manage system resources
• Task manager
• List running programs and processes
• System Restore:
• Restores the system settings back to a specific date
• Disk defragmenter
• ScanDisk:
• Error-checker
– Improve efficiency
• Disk cleanup
• Cleans unnecessary files
– Virus prevention