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Objective Domain 1: Installation, Configuration, and Upgrading
Objective Domain 1 Installation, Configuration, and UpgradingInstallation, configuration, and upgrading are three of the most common tasks requested of the computer technician. Performing these three operations requires a wide range of skills and understanding, such as a basic knowledge of the different components and peripherals of the personal computer. These include the central processing unit (CPU), system memory, the power supply, the motherboard, the bus, storage devices, display system, telecommunications equipment, the basic input/output system (BIOS) and peripheral firmware, complementary metal-oxide semiconductor (CMOS), communications ports, input devices, networking devices, and cases.You must know the role each component plays in the function of the system and its relation to its companions, the way the computer operates, and the resources involved in its operation. These resources can include the interrupt request (IRQ), direct memory access channels (DMA), and I/O addresses, which are used to order communications between the CPU and system components. Working with drivers and memory addresses requires an understanding of hexadecimal notation and how it is used to identify memory segments within the machine. The personal computer relies on a variety of standardized ports and expansion bus standards, as well as standardized connections, fittings, and configuration mechanisms to allow the components to work together and refine easy methods for upgrading the machine or adding peripherals. These include DB-9, DB-25, RJ-11, RJ-45, BNC, USB, IEEE 1394, IEEE 1284, SCSI, IDE, ISA, EISA, PCI, AGP, and slot 1 interfaces; as well as jumpers, DIP switches, and a variety of cabling systems used to connect monitors, printers, keyboards, and other external devices. Installing and removing field replaceable modules and add-ons requires detailed knowledge of how to safely remove and install a variety of devices including expansion cards, storage devices, memory modules, and chips. The process includes several steps: physically connecting the device to the bus, installing software device drivers, allowing the new device to communicate with the computer's operating system, configuring the device, and possibly troubleshooting it. Changing the configuration of a personal computer means changing the dynamic of how the components interact with each other and how they perform. You must be able to properly configure drivers, address system settings, and reduce any potential conflicts in which system modification creates bottlenecks. Computers, monitors, printers, and peripherals use electricity. Improperly handled electricity could cause damage to sensitive components and cause harm or even death to you, the technician. Computer personnel must be aware of proper safety precautions and handling procedures for electrical components, especially ones that can store a charge even when unplugged from a power source. Electrostatic discharge, or ESD (commonly known as static electricity), can damage or destroy delicate components. A modern microcomputer does not require a variety of complicated tools for basic repair, maintenance, or enhancement. It does require the ability to properly operate simple hand tools in a manner that is safe and effective for both you and the hardware. Tested Skills and Suggested Practices The skills that you need to master the Installation, Configuration, and Upgrading objective domain on the A+ Core Hardware exam include:
Further ReadingThis section lists supplemental readings by objective. We recommend that you study these sources thoroughly before taking exam 220-221.Objective 1.1 Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 2, "Understanding Electronic Communication." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1, 2, and 3 in Chapter 3, "An Overview of the Personal Computer." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1, 2, and 3 in Chapter 6, "Motherboard and ROM BIOS." Objective 1.2 Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 20, "Upgrading a Computer." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 7, "Memory." Objective 1.3 Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 3, "An Overview of the Personal Computer." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 4, "The Central Processing Unit." Objective 1.4 Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1, 2, and 3 in Chapter 8, "Expansion Buses, Cables, and Connectors." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lesson 1 in Chapter 9, "Basic Disk Drives." Objective 1.5 Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lesson 2 in Chapter 9, "Basic Disk Drives." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 10, "Advanced Disk Drive Technology." Objective 1.6 Adaptec, Inc. "SCSI Products." 2001. (View Web page at http://www.adaptec.com/worldwide/product/ prodtechindex.html?cat=%2fTechnology%2fSCSI.) Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 3 in Chapter 10, "Advanced Disk Drive Technology." Objective 1.7 Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 8, "Expansion Buses, Cables, and Connectors." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 3 and 4 in Chapter 11, "The Display System." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 15, "Telecommunications: Modems and the Internet." Objective 1.8 Karney, James. Upgrade and Maintain Your PC. 3rd ed. New York, NY: Hungry Minds, Inc., 1998. Review Chapter 5, "Getting Under the Hood." Microsoft Corporation. A+ Certification Training Kit. 3rd ed. Redmond, Washington: Microsoft Press, 2001. Review Lessons 1 and 2 in Chapter 20, "Upgrading a Computer."
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