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Chapter 1: Introduction to the Personal Computer 43<strong>Summary</strong>This chapter introduced the IT industry, options for training and employment, and some ofthe industry-standard certifications. This chapter also covered the components that comprisea PC system. Much of the content in this chapter will help you throughout this course:■■■■■■■■Information technology encompasses the use of computers, network hardware, andsoftware to process, store, transmit, and retrieve information.A PC system consists of hardware components and software applications.You must carefully choose the computer case and power supply to support the hardwareinside the case and allow for the addition of components.A computer’s internal components are selected for specific features and functions. Allinternal components must be compatible with the motherboard.You should use the correct type of ports and cables when connecting devices.Typical input devices include the keyboard, mouse, touch screen, and digital cameras.Typical output devices include monitors, printers, and speakers.System resources must be assigned to computer components. System resources includeIRQs, I/O port addresses, and DMAs.<strong>Summary</strong> of ExercisesThis is a summary of the worksheets associated with this chapter.WorksheetsThe following worksheets cover material from this chapter. Refer to the labs in ITEssentials: PC Hardware and Software Labs and Study Guide, Third Edition:Worksheet 1.1.2: Job OpportunitiesWorksheet 1.4.7: Research Computer ComponentsCheck Your UnderstandingYou can find the answers to these questions in the appendix, “Answers to Check YourUnderstanding Questions.”
44 IT Essentials: PC Harware and Software Companion Guide1. How many FireWire devices can a single FireWire port support?A. 12B. 25C. 32D. 54E. 63F. 1272. Which type of memory transfers data twice as fast as SDRAM and increases performanceby transferring data twice per cycle?A. DDR-SDRAMB. DRAM2C. D-SDRAMD. ROM3. Which type of video connector has a 24-pin or 29-pin female connector and providescompressed digital output to a monitor?A. AAVB. DVIC. HDMID. RCAE. VGA4. How many universal serial bus (USB) devices can be connected to a USB port?A. 256B. 127C. 64D. 1285. What is the maximum data speed of high-speed USB 2.0?A. 1.5 MbpsB. 12 MbpsC. 380 MbpsD. 480 MbpsE. 480 GbpsF. 840 Gbps
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ase station 3AppleTalk A protocol s
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