Who Discovered Magnetic Tape ?

1 Answer

Answer :

: Fetridge Flumer discovers magnetic tape.

Related questions

Description : A magnetic tape is a direct access storage device. -Technology

Last Answer : FalseIt is a non-volatile memory hence, it is not direcdy accessible by the CPU.

Description : Difference between hard disk and magnetic tape?

Last Answer : magnetic tapes are cheaper

Description : Which of the following is not a primary storage device? A) Magnetic tape B) Magnetic disk C) Optical disk D) All of the above

Last Answer : Answer : D

Description : Which of the following is not a primary storage device? A) Magnetic tape B) Magnetic disk C) Optical disk D) All of above

Last Answer : Answer : D

Description : What is the number of read-write heads in the drive for a 9- trac magnetic tape? A) 9 B) 16 C) 18 D) 27

Last Answer : Answer : A

Description : The number of records contained within a block of data on magnetic tape is defined by the A) Block definition B) Record contain clause C) Blocking factor D) Record per block

Last Answer : Answer : C

Description : Which of the following memory medium is not used as main memory system? A) Magnetic core B) Semiconductor C) Magnetic tape D) Both a and b

Last Answer : Answer : C

Description : The data recording format in most of the modern magnetic tape is A) 7-bit ASCII B) 7-bit EBCDIC C) 8-bit ASCII D) 8-bit EBCDIC

Last Answer : Answer : D

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 magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as A) Magnetic core memory B) Magnetic tape memory C) Magnetic disk memory D) Magnetic bubble memory

Last Answer : Answer : D

Description : An output device that uses words or messages recorded on a magnetic medium to produce audio response is A) Magnetic tape B) Voice response unit C) Voice recognition unit D) Voice band

Last Answer : Answer : B

Description : Which statement is valid about magnetic tape? A) It is a plastic ribbon B) It is coated on both sides with iron oxide C) It can be erased and reused D) All of above

Last Answer : Answer : D

Description : Which of the following is not true for a magnetic disk? A) It is expensive relative to magnetic tape B) It provides only sequential access to stored data C) Users can easily update records by writing over the old data D) All of above

Last Answer : Answer : B

Description : Perforated paper used as input of output media is known as A) paper tapes B) magnetic tape C) punched papers tape D) card punch

Last Answer : Answer : A

Description : Which of the following memory medium is not used as main memory system? A) Magnetic core B) Semiconductor C) Magnetic tape D) Both semiconductor and magnetic tape

Last Answer : Answer : C

Description : Which of the following is not a magnetic memory: a) Flip-flop b) Tape c) Drum d) Disk

Last Answer : Ans: A

Description : The magnetic storage chips used to provide non-volatile direct access storage of data and that have no moving parts are known as________ A. Magnetic core memory B. Magnetic tape memory C. Magnetic disk memory D. Magnetic bubble memory

Last Answer : D. Magnetic bubble memory

Description : A plastic card similar to a credit card but having some memory and a microprocessor embedded within it is a. Punched paper tape b. Chip card c. Card punch d. Magnetic tape

Last Answer : Punched paper tape

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 : perforated paper used as input of output media is known as a. paper tapes b. magnetic tape c. punched papers tape d. card punch

Last Answer : paper tapes

Description : perforated paper used as input of output media is known as a. paper tapes b. magnetic tape c. punched papers tape d. card punch

Last Answer : paper tapes

Description : An output device that uses words or messages recorded on a magnetic medium to produce audio response is b. Magnetic tape c. Voice response unit d. Voice recognition unit e. Voice band

Last Answer : Voice response unit

Description : What is the number of read-write heads in the drive for a 9-trac magnetic tape? a. 9 b. 16 c. 18 d. 27

Last Answer : 27

Description : Which of the following is not true for a magnetic disk? a. It is expensive relative to magnetic tape b. It provides only sequential access to stored data c. Users can easily update records by writing over the old data d. All of above

Last Answer : It provides only sequential access to stored data

Description : Which of the following is not a primary storage device? a. Magnetic tape b. Magnetic disk c. Optical disk d. None of above

Last Answer : None of above

Description : The data recording format in most of the modern magnetic tape is a. 7-bit ASCII b. 7-bit EBCDIC c. 8-bit ASCII d. 8-bit EBCDIC

Last Answer : 8-bit EBCDIC

Description : Which statement is valid about magnetic tape? a. It is a plastic ribbon b. It is coated on both sides with iron oxide c. It can be erased and reused d. All of above

Last Answer : It is a plastic ribbon

Description : Codes consisting of lines of varying widths or lengths that arecomputer-readable are known as– (A) an ASCII code (B) a magnetic tape (C) an OCR scanner (D) a bar code (E) None of these

Last Answer : a bar code

Description : Codes consisting of lines of varying widths or lengths that are computer - readable are known as _______: a) an ASCII code b) a magnetic tape c) an OCR scanner d) a bar code e) None of The Above

Last Answer : d) a bar code

Description : Which among the following is a folder: a) Floppy Disk b) Magnetic Drum c) Magnetic Tape d) DVD e) None of The Above

Last Answer : e) None of The Above

Description : Which one of the following a file? 1) Floppy disk 2) Magnetic drum 3) magnetic tape 4) None of these

Last Answer : 4) None of these

Description : Codes consisting or Bars or lines of varying widths or lengths that are computer-readable are known as- 1) A bar code 2) An ASCII Code 3) A Magnetic Tape 4) A Light Pen

Last Answer : 1) A bar code

Description : Cost of storing a bit is minimum in 1. Cache 2. Register 3. RAM 4. Magnetic tape

Last Answer : Ans-Magnetic Tape

Description : What equipment should you use to de-magnetize a magnetic tape transport?

Last Answer : A hand-held degausser.

Description : Sometimes it's necessary, but why should you avoid using cotton swabs when cleaning a magnetic tape transport?

Last Answer : Cotton swabs are not lint free.

Description : . How do tape transports with differential velocity capstans maintain a constant tape tension in the area around the magnetic heads?

Last Answer : The supply capstan is slightly larger than the take-up capstan. This causes the take-up capstan to pull the tape slightly faster than the supply capstan feeds the tape.

Description : What are the four basic parts of a magnetic tape recorder's tape transport system?

Last Answer : a. Tape reeling system. b. Tape speed control system. c. Electronic subsystem. d. Basic enclosure.

Description : Why is it important to minimize TBE jitter in magnetic tape recordings where precise timing relationships exist between two or more signals?

Last Answer : The jitter could cause noise and a loss of accuracy.

Description : What number harmonic is the primary harmonic distortion in magnetic tape recorders?

Last Answer : Third-order harmonic.

Description : List four factors that can degrade the frequency response of magnetic tape recorders.

Last Answer : a. A too-high or too-low bias signal level setting for the record head. b. An improper reproduce head gap. c. An improper tape transport speed. d. Poor tape-to-head contact.

Description : What two types of record and reproduce electronics are used by magnetic tape recorders?

Last Answer : . a. Direct record (AM). b. Frequency modulation (FM).

Description : What two preventive maintenance actions must you do regularly to increase magnetic head life and to ensure good tape recording and playback?

Last Answer : a. Keep the heads clean. b. Keep the heads demagnetized.

Description : Magnetic tape recorders can have up to three different heads installed. What are the three functions performed by a recorder's heads?

Last Answer : Record, reproduce, and erase.

Description : What is the correct way to hold a magnetic tape reel?

Last Answer : Always hold reel by the hub, never by the flanges. Never touch the working tape surface.

Description : What method for erasing magnetic tape is much more effective and reliable than using a recorder’s erase head?

Last Answer : Using a magnetic tape degausser

Description : What are two disadvantages of using a recorder’s erase head to erase data recorded on a magnetic tape?

Last Answer : Using an erase head is slow, and it may not completely erase the tape.

Description : You notice steps in the tape pack such as those in figure 2-3. What causes this and how does it damage the magnetic tape?

Last Answer : Pack slip. It's caused by loosely wound tape on a reel that is exposed to excessive vibration or heat. The vibration or heat causes the tape to shift, causing steps in the tape pack. The uneven tape will then rub against the reel's sides and the recorder's tape guides.

Description : When the relative humidity is below 10%, what happens to magnetic tape and parts of a tape recorder that could cause environmental damage?

Last Answer : Dirt build-up caused by static electricity.

Description : Your activity stores its magnetic tape in an area where the temperature is 100º F. What two types of environmental damage could occur that would make these tapes unusable?

Last Answer : Head-to-tape sticking and layer-to-layer adhesion

Description : After using a tape that was stored in an area where temperatures exceeded 130º F you notice pieces of oxide sticking to the recorder's tape-transport mechanism, to its magnetic heads, and onto the tape. What is the probable cause of these symptoms?

Last Answer : Oxide shedding. At temperatures above 130º F, oxide coating becomes soft and sheds.