LITMIR.BIZ

C. Inkjet printers typically use a reservoir of ink (also known as an ink cartridge), a pump, and a nozzle to print images.

D. The number designation of 1600 in DDR3–1600 indicates an FSB speed of 1600MHz. To find the throughput, multiply the FSB speed by 8.

A. The refresh rate for plasma displays has always been in the 600Hz range, which is 10 times the standard refresh rate of 60Hz, thus ensuring fluid video motion. The result is a display that produces the state of the art in video motion fluidity.

C. DDR2, using a 100MHz actual clock, transfers data in four operations per cycle (effective 400MHz FSB) and 8 bytes per operation, for a total of 3200MBps. DDR2 calls these modules PC2–3200.

D. The connector pictured is a four-pin FireWire (IEEE1394) port on a laptop.

B. iPads and iPhones can automatically detect AirPrint-enabled printers on their local network and print to them without requiring the installation of a driver.

B. To communicate with other computers on a network, you need a network interface card (NIC). A wireless access point (WAP) is a wireless hub that many wireless devices communicate with, and WPA is a wireless security standard. A KVM switch allows you to have multiple systems attached to the same keyboard, video, and mouse. Other types of expansion cards (that could use the same slot as a NIC) include video cards, sound cards, storage cards, TV tuner cards, and riser cards.

D. A 1920×1200 resolution is a 16:10 aspect ratio. If you take the second number (1200) and multiply it by 1.6, you get 1920.

B. The printer driver uses a page-description language (PDL) to convert the data being printed into the format that the printer can understand. The driver also ensures that the printer is ready to print.

D. The power supply fan is used to cool the power supply. In addition, this fan draws air from inside the case into vents in the power supply. This pulls hot air through the power supply so that it can be blown out of the case.

A. A solid-state drive (SSD) is the best choice for a hard drive, when access speed is the most important characteristic. A conventional magnetic hard disk drive (HDD) is slower. Secure Digital (SD) is a memory card format, not a hard drive type. BD-R is a Blu-ray Disc format.

B. The Northbridge is responsible for managing high-speed peripheral communications. The Southbridge manages slower onboard peripherals such as PS/2, parallel, serial, and Serial ATA and Parallel ATA.

B. USB 1.0 supports 12Mbps, USB 2.0 supports 480Mbps, and USB 3.0 supports 5Gbps.

B. RAID 5 arrays require a minimum of three hard drives. Since the computer already has one, he therefore needs two more.

C. Any device that measures one or more physical or behavioral features of an organism is considered a biometric device. Biometric devices include fingerprint scanners, retinal and iris scanners, voice recognition devices, facial recognition devices, and others.

A. A processor that exhibits a multicore architecture has multiple completely separate processor dies in the same package. The operating system and applications see multiple processors in the same way that they see multiple processors in separate sockets.

B. All are digital video disc (DVD) technologies. A single-sided, single-layer (SS, SL) DVD provides about 4.7GB of storage. A dual-sided (DS) disc will double that capacity to 9.4GB. Adding a second layer, or dual-layer (DL), adds more capacity, but the technology does not double the capacity of a single layer. A single-sided, dual-layer (SS, DL) disc has capacity of about 8.5GB.

D. Many power supplies have a two-position slider switch called a dual voltage switch. It can be set for 110–120V or 220–240V, depending on what local power specifications are.

D. MicroATX motherboards are a 9.6″ square, and mini-ITX motherboards are a 6.7″ square. Pico-ITX motherboards are 3.9″ × 2.8″, and mobile-ITX motherboards are 2.4″ square.