Q&A Hero

Physic

Q: Which of the following is the format for commercial music CDs?a. CD b. CD-R c. CD-RWd. CD-DA
Q: In the term CD-R the suffix "R" indicates that the CD is ____.a. read-only b. rewritable c. recordabled. reusable
Q: Direct memory access (DMA) technology does which of the following? a. Allows for sequential access of data. b. Uses wireless technology to transfer data. c. Allows a computer to transfer data directly from a drive to RAM d. Positions the read-write heads to locate data.
Q: Which of the following is NOT an example of a hard disk controller?a. ASCII b. Ultra ATA c. EIDEd. SCSI
Q: Which of the following is true about hard disk drives? a. They can be internal or external. b. Hard disk platters are made of Mylar. c. Hard disk speed is measured in milliseconds d. They contain a circuit board, called a cylinder.
Q: Which of the following storage technologies has the highest average capacity?a. Jaz disk b. Blu-ray DVD c. SuperDiskd. Fixed hard disk
Q: Access time for a personal computer's storage device is measured in ____.a. gigabytes b. megabytes c. millisecondsd. nanoseconds
Q: Which of the following is NOT one of the four criteria for evaluating storage technology?a. versatility b. durability c. capacityd. resolution
Q: Optical storage stores data in ____.a. solid state b. pits and lands c. read-write headsd. magnetized particles
Q: Which of the following is NOT true about magnetic storage?a. It is not very durable. b. It uses a read-write head. c. Hard disks are an example.d. A laser is used to read data.
Q: ____ storage stores data in nonvolatile, erasable, low-power chips.a. Optical b. Magnetic c. Solid stated. Floppy disk
Q: In the above figure, the item numbered ____ represents magnetized particles.a. 1 c. 3b. 2 d. 4
Q: In the above figure, the item numbered ____ represents the disk surface.a. 1 b. 2 c. 3d. 4
Q: In the above figure the item labeled 3 is called the ____.a. read-write head b. magnetizer c. laserd. solid state storage
Q: The conversion of letters, sounds, and images into electrical signals is called ____.a. digital imaging b. data representation c. binary coded. storage
Q: Which of the following is NOT true about RAM? a. RAM connects the storage devices and storage media. b. RAM is the same as hard disk storage. c. RAM is volatile. d. Data is usually copied from RAM to a permanent storage location.
Q: CD and DVD drives are examples of: ____.a. storage devices b. Zip drives c. storage mediad. solid stage storage
Q: Plasma screens are expensive and lightweight.
Q: It is not necessary to unplug the computer before opening the system unit.
Q: Peripheral devices are often connected to the motherboard through cables.
Q: A digital cameral is considered a type of peripheral device.
Q: Most PCs include built-in ports for mice, keyboards, and monitors.
Q: An expansion slot can accommodate multiple expansion cards simultaneously.
Q: A network card is a type of expansion card.
Q: A printer's duty cycle is the number of pages per minute it can output.
Q: Color and black & white printouts typically take the same amount of time to output.
Q: Dot pitch is the measurement of the screen from one corner to the diagonally opposite corner.
Q: Color depth is the number of colors a monitor and graphics card can display.
Q: A video or graphics card generates the signals for displaying an image on the screen.
Q: A pointing stick is usually used with a notebook instead of a PC.
Q: Having a mouse is one difference between PCs and laptop computers.
Q: [Ctrl] is an example of a function key.
Q: The item numbered 2 in the figure above is an example of a SmartMedia card.
Q: The devices shown in the above figure are all examples of solid state storage.
Q: Rewritable CDs and DVDs use "phase change" technology to create pits and lands.
Q: A CD-RW drive can be used to record CDs, but not play audio CDs.
Q: Hard disk speed is sometimes measured in revolutions per minute.
Q: Tape drive is an example of random access storage.
Q: A vertical stack of tracks on a hard disk platter is called a cylinder.
Q: Random access devices have the slowest access times.
Q: Access time is the average time for a computer to locate and read data on a storage medium.
Q: Floppy disks are the most widely used storage devices today because of their high storage capacity.
Q: The item labeled 3 in the above figure reads and writes the particles that represent data in magnetic storage.
Q: Optical storage uses magnetized particles and lasers to store data.
Q: Floppy disks store data the same way as CD-ROMs.
Q: Data representation is the conversion of letters, sounds and images to electronic signals.
Q: A Zip disk is an example of a storage device.
Q: Each data storage system contains a storage medium and storage device.
Q: Describe the uses and benefits of solid state storage.
Q: Compare and give examples of the three types of storage technologies: magnetic, optical, and solid state.
Q: Peripheral devices require software called a device ____________________.
Q: A(n) ____________________ device is used to modify or expand a computer system.
Q: An expansion ____________________ is also called "jack" or "connector."
Q: A(n) ____________________ card is used to connect a PC to a LAN.
Q: ISA, PCI, and AGP are all examples of expansion ____________________.
Q: A(n) ____________________ card is an expansion card that allows data to transmit over phone lines.
Q: A(n) ____________________ slot is a socket on the motherboard into which you can plug a small circuit board.
Q: Printer ____________________ is the density of the grid of dots that create an image.
Q: The ____________________ cycle of a printer is the number of pages a printer can produce in a month.
Q: The maximum number of pixels displayed on the screen is the ____________________.
Q: A(n) ____________________ mouse uses an onboard chip to track a light beam as it bounces off a surface.
Q: A ____________________ is a pointing device that resembles a car's stick shift.
Q: A keyboard ____________________ is a combination of a modifier key and another key to perform a task.
Q: [Ctrl], [Alt], and [Shift] are examples of ____________________ keys.
Q: ____________________ keys are designed for computer-specific tasks, such as opening the Help window.
Q: In the above figure, the numbered item ____________________ is a SmartMedia card.
Q: ____________________ DVD technology can record over 2 hours of HDTV.
Q: A hard drive storage device includes a circuit board, called a ____________________.
Q: A hard disk ____________________ is a flat disk made of aluminum or glass and coated with magnetic iron oxide particles.
Q: A ____________________ crash can occur when the hard disk is jarred while in use.
Q: A drive ____________________ is a "parking space" for a storage device.
Q: A tape drive has a slow access time because it uses ____________________ access.
Q: A standard ____________________ disk has a capacity of 1.44MB.
Q: In optical storage, the light spots are called ____________________.
Q: In optical storage, the dark spots are called ____________________.
Q: The device shown in the above figure is an example of ____________________ storage.
Q: ____________________ storage stores data as microscopic light and dark spots on the disc surface.
Q: Hard disks, floppy disks, and tape are all examples of ____________________ storage.
Q: CD and DVD drives, tape drives, card readers, and hard disk drives are all examples of storage ____________________.
Q: A storage ____________________ is the disk, hard drive, tape, memory card, CD, DVD, that holds data.
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