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Figure 1-2 Inside the computer case

Figure 1-2 Inside the computer case. Figure 1-18 This MicroATX motherboard by Biostar is designed to support an AMD processor. Figure 4-3 A Mini-ITX motherboard. Figure 4-10 The chipset’s North Bridge and South Bridge control access to the

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Figure 1-2 Inside the computer case

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  1. Figure 1-2 Inside the computer case A+ Guide to Managing & Maintaining Your PC, 8th Edition

  2. Figure 1-18 This MicroATX motherboard by Biostar is designed to support an AMD processor A+ Guide to Managing & Maintaining Your PC, 8th Edition

  3. Figure 4-3 A Mini-ITX motherboard A+ Guide to Managing & Maintaining Your PC, 8th Edition

  4. Figure 4-10 The chipset’s North Bridge and South Bridge control access to the processor for all components A+ Guide to Managing & Maintaining Your PC, 8th Edition

  5. Buses and Expansion Slots • Bus • System of pathways used for communication • Carried by bus: • Power, control signals, memory addresses, data • Data and instructions exist in binary • Only two states: on and off • Data path size: width of a data bus • Examples: 8-bit bus has eight wire (lines) to transmit A+ Guide to Managing & Maintaining Your PC, 8th Edition

  6. Figure 4-16 A data bus has traces or lines that carry voltage interpreted by the CPU and other devices as bits A+ Guide to Managing & Maintaining Your PC, 8th Edition

  7. Buses and Expansion Slots • System clock (system timer) – times activities on the motherboard • Speed of memory, Front Side Bus, processor, or other component is measured in hertz (Hz), which is one cycle per second • Megahertz (MHz): one million cycles per second • Gigahertz (GHz): one billion cycles per second • Motherboards can have more than one bus • Table 3-4 on the following slide lists many buses A+ Guide to Managing & Maintaining Your PC, 8th Edition

  8. Figure 4-21 Three types of PCIe slots and one conventional PCI slot A+ Guide to Managing & Maintaining Your PC, 8th Edition

  9. What’s Inside the Case • Expansion cards - also called adapter cards • A circuit board that provides more ports than those provided by the motherboard • Today, most ports are provided by motherboards Figure 1-4 Ports provided by a motherboard A+ Guide to Managing & Maintaining Your PC, 8th Edition

  10. What’s Inside the Case • Memory modules – random access memory (RAM) • Temporary storage for data and instructions as they are being processed by the CPU • Dual inline memory module (DIMM) slots hold memory modules Figure 1-6 A DIMM holds RAM and is mounted directly on a motherboard A+ Guide to Managing & Maintaining Your PC, 8th Edition

  11. Drives, Their Cables, and Connectors • Hard Drives • Two standards: • Serial ATA standard (SATA) • Used by most drives today • Parallel ATA (PATA) – slower than SATA • Also called IDE interface • Uses 40-pin ribbon cable and connector • Two connectors on a motherboard for two data cables • Accommodates up to four IDE devices • Uses a 4-pin power connector called a Molex power connector A+ Guide to Managing & Maintaining Your PC, 8th Edition

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