Software and hardware maintenance for IT.pptx

This ppt is for IT student

1. EXTENAL PC COMPONENTS

2. 1. **Power Connector:**    - **Usage:** Provides power from the PSU (Power Supply Unit) to the computer.    - **Type:** Typically a 24-pin ATX connector for desktops.    - **Version:** Various versions exist, but ATX is the most common.    - **Vendor:** Produced by various PSU manufacturers.    - **Technology:** Delivers multiple voltages to the motherboard and peripherals.    - **Notice:** Ensure compatibility with PSU and motherboard specifications. 2. **Parallel Port:**    - **Usage:** Connects printers, scanners, and other parallel devices.    - **Type:** DB-25 or DB-36 connector.    - **Version:** Commonly found on older systems, less prevalent in modern PCs.    - **Vendor:** Found on motherboards from various manufacturers.    - **Technology:** Supports parallel data transfer.    - **Notice:** Consider using USB or network alternatives for modern peripherals.

3. 3. **Ethernet Port:**    - **Usage:** Connects computers to wired networks.    - **Type:** RJ-45 connector.    - **Version:** Supports various Ethernet standards (e.g., 10/100/1000 Mbps).    - **Vendor:** Integrated into motherboards or network interface cards.    - **Technology:** Supports Ethernet protocols for data transfer.    - **Notice:** Ensure drivers are installed for proper functionality. 4. **56K Modem Port:**    - **Usage:** Connects to dial-up internet services.    - **Type:** RJ-11 connector.    - **Version:** Supports dial-up modem communication at 56Kbps.    - **Vendor:** Integrated into motherboards or expansion cards.    - **Technology:** Uses analog signals over telephone lines.    - **Notice:** Dial-up internet is slow and outdated; consider broadband alternatives.

4. 5. **Audio Jack:**    - **Usage:** Connects speakers, headphones, and microphones.    - **Type:** 3.5mm TRS (Tip-Ring-Sleeve) connector.    - **Version:** Standard audio interface found on most PCs.    - **Vendor:** Integrated into motherboards or sound cards.    - **Technology:** Supports analog audio signals.    - **Notice:** Ensure correct port colors and use appropriate audio devices. 6. **USB Port:**    - **Usage:** Connects various USB devices.    - **Type:** USB Type-A or Type-C connectors.    - **Version:** Supports multiple USB standards (e.g., USB 2.0, USB 3.0, USB 3.1).    - **Vendor:** Integrated into motherboards or expansion cards.    - **Technology:** High-speed data transfer for peripherals.    - **Notice:** Check device compatibility and USB standard for optimal performance

5. 7. **VGA Port:**    - **Usage:** Connects monitors and displays.    - **Type:** DE-15 (D-sub) connector.    - **Version:** Common analog video interface, being replaced by digital alternatives.    - **Vendor:** Integrated into motherboards or graphics cards.    - **Technology:** Transmits analog video signals.    - **Notice:** Consider upgrading to digital interfaces like HDMI or DisplayPort for better quality. 8. **Serial Port:**    - **Usage:** Connects serial devices like modems and serial mice.    - **Type:** DB-9 or DB-25 connector.    - **Version:** Common on older systems, less common in modern PCs.    - **Vendor:** Integrated into motherboards or expansion cards.    - **Technology:** Supports serial data transfer.    - **Notice:** Many modern devices use USB or network interfaces instead.

6. 9. **PS/2 Port:**    - **Usage:** Connects keyboards and mice.    - **Type:** Mini-DIN connector (usually color-coded).    - **Version:** Common on older systems, still found on some modern motherboards.    - **Vendor:** Integrated into motherboards.    - **Technology:** Supports PS/2 protocol for input devices.    - **Notice:** Consider using USB alternatives for newer peripherals unless compatibility is required.