Description : Storage media such as a CD read and write information using -- 1 Magnetic strips 2 Magnetic dots 3 A laser beam of red light 4 All of these
Last Answer : 4 All of these
Description : To read a CD-ROM disc, you need a (1) laser beam (2) magnetic needle (3) sound card (4) graphics card
Last Answer : laser beam
Description : Which of the following areadvantagesof CD-ROM as a storage media? (A) CD-ROM is aninexpensive way to store large, amount of data and information (B) CD-ROM disks retrieve data and information more quickly than ... (C) CD-ROMs make lesserrors than magnetic media (D) An of the above (E) None of these
Last Answer : An of the above
Description : For reproducing sound, a CD (Compact Disc) audio player uses a 1) quartz crystal 2) titanium needle 3) laser beam 4) barium titanium ceramic
Last Answer : 3) laser beam
Description : What is the latest write-once optical storage media? A) Digital paper B) Magneto-optical disk C) WORM disk D) CD-ROM disk
Last Answer : Answer : D
Description : A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called A) Laser printer B) Ink-jet printer C) Drum printer D) Chan printer
Last Answer : Answer : B
Description : In laser printers, printing is achieved by deflecting laser beam on to __________ surface of a drum. A. Magnetic B. Electric C. Photosensitive D. None of the Above
Last Answer : C. Photosensitive
Description : Which among the following is incorrect about CD's features : a) It contains digital information that can be read, but cannot be rewritten. b) It is a very reliable storage media. It is very often used as ... c) Separate drives exist for reading and writing CDs. d) All of the Above e) None of These
Last Answer : e) None of These
Description : The first laser emitted a. Pulses of 694 nm red light b. A continuous red beam c. Pulses of white light from a helical flashlamp d. Spontaneous emission
Last Answer : a. Pulses of 694 nm red light
Description : The first laser emitted ∙ a. Pulses of 694 nm red light ∙ b. A continuous red beam ∙ c. Pulses of white light from a helical flash lamp ∙ d. Spontaneous emission
Last Answer : ∙ a. Pulses of 694 nm red light
Description : Find out the wrong feature of DVD among the following: a) DVD is similar to CD but has larger storage capacity and enormous clarity b) DVDs are primarily used to store music or 6 movies and can be played back on ... opposed to around 650 MB of a CD) d) It is not re-writable media e) None of These
Description : What is the latest write-once optical storage media? a. Digital paper b. Magneto-optical disk c. WORM disk d. CD-ROM disk
Last Answer : Magneto-optical disk
Last Answer : d. CD-ROM disk
Description : Which storage device is mounted on reels: a) Floppy Disk b) Hard Disk c) Magnetic Disk d) CD - ROM e) None of The Above
Last Answer : c) Magnetic Disk
Description : A compact disc (CD) is a data storage system of the type : (1) Magnetic (2) Optical (3) Electrical (4) Electromechanical
Last Answer : Optical
Description : A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called a. Laser printer b. Ink-jet printer c. Drum printer d. Chan printer
Last Answer : Ink-jet printer
Last Answer : d. Chan printer
Last Answer : b. Ink-jet printer
Description : Magnetic tape can serve as A) Secondary storage media B) Output media C) Input media D) All of the above
Last Answer : Answer : A
Description : The storage subsystem in a microcomputer consists mainly of or media with varying capacities A) Memory or video B) Magnetic or optical C) Optical or memory D) Video or magnetic
Description : One of the popular mass storage device is CD ROM. What does CD ROM stand for? A) Compactable Read Only Memory B) Compact Data Read Only Memory C) Compactable Disk Read Only Memory D) Compact Disk Read Only Memory
Description : Which of the following is a read only memory storage device? A) Floppy Disk B) CD-ROM C) Hard Disk D) None of these
Description : A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised (A) Steel experiences tensile force (B) Brass experiences compressive force (C) Composite beam gets subjected to a couple (D) All the above
Last Answer : (D) All the above
Description : Thoughts of buying a vacuum sealer, a temperature-controlled safe, etc. (I live in the tropics)
Last Answer : That's a good, and interesting question. Optical media can fail because of age. Pressed optical media can be readable for decades. But burned optical media has a shorter life span. Controlling ... it isn't necessarily mold that is the danger. Even without mold, temperature and humidity can cause
Description : Which media have the ability to have data/information stored (written) on them by users more than once? 1) CD-R disks 2) CD-RW disks 3) Zip disks 4) Optical Disks
Last Answer : 2) CD-RW disks
Description : Which media have the ability to have data/information stored (written) on them by users more than once? 1 CD-R disks 2 CD-RW disks 3 Zip disks 4 Optical Disks
Last Answer : 2 CD-RW disks
Description : Why is a green laser beam visible while a red or blue beam is not?
Last Answer : answer:See this site for a graph of the visibility spectrum. Here is an excerpt: The actual visibility of the ray will vary depending on the color, power, moisture and dust content in the air.. ... on a foggy night the ray can be strikingly visible but the impact point will be of limited range.
Description : Pixels are: a) Points of light used by a cordless, wireless, optical mouse b) Dots of ink from inkjet printer c) Dots on the screen arranged in rows d) None of These
Last Answer : c) Dots on the screen arranged in rows
Description : Which of the following sensor uses a laser beam to determine the distance to an object? A : Sonar B : Radar C : Infrared D : Laser Rangefinder
Last Answer : D : Laser Rangefinder
Description : Light beam which is highly directional is called: (1) eraser (2) grazer (3) maser (4) laser
Last Answer : (4) laser Explanation: Laser light is very different from normal light. It is very directional, has a very tight beam and is very strong and concentrated. The light released is monochromatic. It contains one specific wavelength of light (one specific colour).
Description : Laser is a device to produce - (1) a beam of white light (2) coherent light (3) microwaves (4) X-rays
Last Answer : (2) coherent light Explanation: In physics, two wave sources are perfectly coherent if they have a constant phase difference and the same frequency, and the same waveform. Coherence is an ideal property of waves that enables stationary (i.e. temporally and spatially constant) interference.
Description : A dielectric waveguide for the propagation of electromagnetic energy at light frequencies a. Stripline b. Microstrip c. Laser beam d. Fiber optics
Last Answer : d. Fiber optics
Description : What generates a light beam of a specific visible frequency? a. Laser b. Maser c. Infrared d. Flashlight
Last Answer : a. Laser
Description : ________ generates light beam at a specific visible frequency. A. Glass fiber B. Infrared C. Light waves D. Laser
Last Answer : D. Laser
Description : Laser is a device to produce (A) Gamma rays (B) Microwaves (C) A beam of white light (D) A beam of coherent light
Last Answer : Option B
Description : A dielectric waveguide for the propagation of electromagnetic energy at light frequencies ∙ a. Stripline ∙ b. Microstrip ∙ c. Laser beam ∙ d. Fiber optics
Description : What generates a light beam of a specific visible frequency? ∙ a. Laser ∙ b. Maser ∙ c. Infrared ∙ d. Flashlight
Last Answer : ∙ a. Laser
Description : The characteristic that distinguishes a laser beam from an ordinary light beam is: A. The greater frequency of the laser beam B. The coherence of the laser beam C. The color of the laser beam D. The greater polarization of the laser beam
Last Answer : B. The coherence of the laser beam
Description : The characteristic that distinguishes a laser beam from an ordinary light beam is: w) the greater frequency of the laser beam x) the coherence of the laser beam y) the color of the laser beam z) the greater polarization of the laser beam
Last Answer : ANSWER: X -- THE COHERENCE OF THE LASER BEAM
Last Answer : laser
Description : What is the difference between a CD-ROM and a CD-RW? a) They are the same just two different terms used by different manufacturers b) A CD-ROM can be written to and a CD-RW cannot c) A CD-RW can be ... CD-ROM can only be read from d) A CD-ROM holds more information than a CD-RW e) None of these
Last Answer : c) A CD-RW can be written to, but a CD-ROM can only be read from
Description : Which of the following is a term related with scanners? 1) Laser 2) TWAIN 3) Catridge 4) Media
Last Answer : 2) TWAIN
Description : Do you still read the comic strips in the newspaper? (Did you ever?)
Last Answer : I read the comics loyally. Big Nate, Baby Blues, Dilbert, etc. When Calvin and Hobbes ended I was sad.
Description : With a CD you can ..... 1) Read 2) Write 3) Read and Write 4) Either Read or Write
Last Answer : 3) Read and Write
Description : Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1) Floppy diskette 2) Hard disk 3) Permanent disk 4) None of these
Last Answer : 2) Hard disk
Description : Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1 Floppy diskette 2 Hard disk 3 Permanent disk 4 None of these
Last Answer : 2 Hard disk
Description : Magnetic tape can serve as a. Secondary storage media b. Output media c. Input media d. All of the above
Last Answer : All of the above
Description : The storage subsystem in a microcomputer consists mainly of “ or “ media with varying capacities a. Memory or video b. Magnetic or optical c. Optical or memory d. Video or magnetic
Last Answer : Magnetic or optical