Category: Hardware

Printer consumables

Please list all the consumables for the following printer: (Toner, Fuser, Drum) along with their prices. HP LaserJet 8550DN What does the D mean? What does the N mean? What sizes of paper does it support? What are the cycle counts (how many pages) for ALL of the consumables and parts?

19. Supporting Printers – Reviewing the Basics

List the seven steps used by a laser printer to print a page. During the laser printing process, what determines when the toner sticks to the drum and when it does not stick to the drum? What type of printer is most dependent on the quality of paper it uses to get the best printing […]

9. Supporting I/O Devices – Reviewing the Basics

Which is faster, an eSATA-600 port or a FireWire 800 port? What is the speed for Hi-Speed USB? How many times faster is a Hi-Speed USB port than an Original USB port running at 12 Mbps? Which is faster, USB 3.0 or eSATA 600? Which is faster, Wi-Fi 802.11n or Bluetooth? How many pins does […]

Real Problem 9-1: Helping with Upgrade Decisions

Upgrading an existing system can sometimes be a wise thing to do, but sometimes the upgrade costs more than the system is worth. Also, if existing components are old, they might not be compatible with components you want to use for the upgrade. A friend, Renata, asks your advice about several upgrades she is considering. […]

Hands-On Project 9-2: Research Video Port Adapters

Research the web and find devices that can be used as solutions to these problems. Print or save the webpage showing the device and price: Find an adapter that allows you to connect a Thunderbolt port on a computer to a DVI monitor using a DVI cable. Find an adapter that allows you to connect […]

Hands-On Project 6-2 – Select a Replacement Hard Drive

Suppose one of the 640-GB Western Digital hard drives installed in the RAID array and shown in Figure 6-29 has failed. Search the Internet and find a replacement drive as close to this drive as possible. Print three webpages showing the sizes, features, and prices of three possible replacements. Which drive would you recommend as […]

Hands-On Project 5-2 – Shop for a Power Supply

Shop online for a power supply to meet the needs of each of the following systems. Print or save the webpage showing the power supply, its features, and its price: A regular desktop system for light computing has a moderately priced motherboard and processor, onboard video, two SATA hard drives, a DVD-RW drive, and two […]