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Modern PC repair and maintenance has been facilitated by increasing and .
Componentization and standardization.
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Process of sending data to the computer
Input
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Software that has been permanently placed in a hardware component
Firmware
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Event of a program being loaded, retrieved, transmitted, or executed
Processing
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2 major processing components
CPU and RAM
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Specialized form of input and output using media and devices to link multiple computers into an interconnected unit
Networking
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Process of the computer presenting, displaying, or otherwise giving data
Output
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Port commonly used for serial devices
DB-9 serial port
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Port commonly used for printers
DB-25 parallel port
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Port commonly used for joystick or MIDI device
DB-15 (2 rows)
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Port commonly used for VGA/SVGA monitor
DB-15 (3 rows)
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Port commonly used for digital monitor
DVI port
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Port commonly used for PS/2-style keyboard or mouse; purple is for and green is for .
6-pin mini-DIN; keyboard, mouse
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Port used for speaker or microphone; is mic in, is line in, and is line out
TRS; red, blue, green
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Port for internal modem or telephone
RJ-11 (4 wires)
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Port for Ethernet network
RJ-45 (8 wires)
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Port most commonly for video cameras
FireWire 6 pin
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Port for many peripherals, including printers, scanners, cameras, mouse, keyboard, external drives, MP3 players
USB
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Set of programs that acts as interface between applications running on computer and computer's hardware
Operating system (OS)
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Name some actions performed by the operating system
Receiving user input from hardware, sending user output to hardware, controlling the use of processing devices by applications, serving as platform for applications, moderating hardware, providing security, managing file system
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Part of OS that is loaded into memory when system boots up
Kernel
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Part of OS responsible for controlling security, managing file system, and providing platform for applications to run
Kernel
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The core of the OS, the user rarely interacts with it
Kernel
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Part of OS that allows user to interact with kernel and utilities
Interface
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Type of computer program that enables OS to interact with hardware
Drivers
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Two types of OS interfaces
Command line and GUI (graphical user interface)
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Name 2 common Windows utilities
My Computer and Control Panel
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Features or programs in OS that perform system-related tasks
Utilities
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Subclass computer program designed for end users
Applications
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