10. Most computer ports are located on the back of the case. Examining the back of a PC Video
11. Figure 1-6 The two most popular output devices are the monitor and the printer Figure 1-5 The two most popular input devices are the keyboard and the mouse
12. You will need to become familiar with the different types of connectors used with computers
16. Figure 1-9 All hardware components are either located on the motherboard or directly or indirectly connected to it because they must all communicate with the CPU RAM boards are called memory modules ☻ Looking at Motherboards Video
17. Figure 1-10 A motherboard provides ports for common I/O devices FireWire:Used for high speed multimedia such as digital camcorders ☻ USB: Used for external hard drives, keyboards, printers, scanners, etc. ☻ ch01a Quick Quiz
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19. Figure 1-11: The processor is hidden underneath the fan and heat sink, which keep it cool.
20. Figure 1-12 This motherboard uses two chips in its chipset (notice the bus lines coming from each chip used for communication) ☻ All circuit boards contain microchips
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22. Figure 1-13 Memory is a temporary place to hold instructions and data while the CPU processes both
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24. Figure 1-14 A SIMM, DIMM, or RIMM holds RAM and is mounted directly on a motherboard.
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26. Figure 1-16 Hard drive with sealed cover removed Identifying Drives Video
27. Figure 1-18 Two IDE devices connected to a motherboard using both IDE connections and two cables
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29. Figure 1-22 A motherboard usually provides a connection for a floppy drive cable Figure 1-22 A motherboard usually provides a connection for a hard drive cable and a CD-ROM drive also. ch01b Quick Quiz
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33. Figure 1-26 A data bus has traces or lines that carry voltage interpreted by the CPU and other devices as bits The width of the data bus is called the data path size. ☻
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35. Figure 1-29 PCI bus expansion slots are shorter than ISA slots and offset farther; the one AGP slot is set farther from the edge of the board Expansion cards are installed in long narrow slots on the motherboard ☻ Figure 1-28: The lines of the bus terminate at an expansion slot where they connect to pins that connect to lines on the expansion card inserted in the slot.
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37. Figure 1-31 This circuit board is a modem card and is mounted in a PCI slot on the motherboard Figure 1-32 This easiest way to identify this video card is to look at the port on the end of the card. Identifying Expansion Cards Video
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39. The Power supply has multiple outputs to drive the internal components including the motherboard, floppy drive, hard drive etc.
40. Figure 1-35 The motherboard receives its power from the power supply by way of one or more connections located near the edge of the board or near the processor
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42. Figure 1-36 This firmware chip contains flash ROM and CMOS RAM; CMOS RAM is powered by the coin battery located near the chip
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47. A+ Guide to Managing and Maintaining your PC, 6e Chapter 1 Introducing Hardware The End
48. A+ Guide to Managing and Maintaining your PC, 6e Chapter 1 Introducing Hardware Textbook Questions
88. A+ Guide to Managing and Maintaining your PC, 6e Chapter 1 Introducing Hardware The End
Editor's Notes
Sugarland – All I want to do
central processing unit (CPU): Also called a microprocessor or processor. The heart and brain of the computer, which receives data input, processes information, and executes instructions.
expansion cards: A circuit board inserted into a slot on the motherboard to enhance the capability of the computer. expansion slot: A narrow slot on the motherboard where an expansion card can be inserted. Expansion slots connect to a bus on the motherboard.
chipset: A group of chips on the motherboard that controls the timing and flow of data and instructions to and from the CPU.
DIMM (dual inline memory module): A miniature circuit board installed on a motherboard to hold memory. DIMMs can hold up to 2 GB of RAM on a single module.
bus: The paths, or lines, on the motherboard on which data, instructions, and electrical power move from component to component. data bus: The lines on the system bus that the CPU uses to send and receive data. data path size: The number of lines on a bus that can hold data, for example, 8, 16, 32, and 64 lines, which can accommodate 8, 16, 32, and 64 bits at a time.
clock speed: The speed, or frequency, expressed in MHz, that controls activity on the motherboard and is generated by a crystal or oscillator located somewhere on the motherboard.
cards: Adapter boards or interface cards placed into expansion slots to expand the functions of a computer, allowing it to communicate with external devices such as monitors or speakers.
BIOS (basic input/output system): Firmware that can control much of a computer’s input/output functions, such as communication with the floppy drive and the monitor. Also called ROM BIOS. firmware: Software that is permanently stored in a chip. The BIOS on a motherboard is an example of firmware. CMOS (complementary metaloxide semiconductor): The technology used to manufacture microchips. CMOS chips require less electricity, hold data longer after the electricity is turned off, are slower, and produce less heat than earlier technologies. The configuration, or setup, chip is a CMOS chip. CMOS RAM: region of memory that uses battery power to retain data after the PC is shut off. CMOS setup: A chip on the motherboard that contains a very small amount of memory, or RAM enough to hold configuration, or setup, information about the computer The chip is powered by a battery when the PC is turned off. Also called CMOS configuration chip or CMOS RAM chip.
Advanced Configuration and Power Interface (ACPI) Specification developed by Intel, Compaq, Phoenix, Microsoft, and Toshiba to control power on notebooks and other devices. Windows 98 and Windows 2000/XP support ACPI. Advanced Power Management(APM): Power management standard developed by Intel and Microsoft. APM has been superseded by ACPI.
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