Input and Output Questions and Answers

Q: Which of the following is capable of recognizing a pre-specified type of mark by pencil or pen?

Correct answer: OMROptical mark recognition detects the presence or absence of a mark in a predefined position, which is why the forms it reads have printed boxes or lozenges to be filled.It reads position rather than shape, which makes it simple and very reliable - and is why it is used for examination answer sheets, ballot papers and survey forms. Optical character recognition, by contrast, must identify the shapes of characters, a far harder problem. A bar code reader reads bar widths, and Winchester is an old term for a hard disk.

Q: Input Devices that use a special ink that contains magnetizable particles of iron oxide are ____

Correct answer: MICRMagnetic ink character recognition prints characters in ink containing iron oxide, which is magnetised before reading so that each character produces a distinctive waveform in the read head.The advantage over optical reading is robustness: the characters can still be read through an overprinted signature, a stamp or a smudge, because it is the magnetic signal rather than the visible image that is sensed. Banks adopted it for cheque processing for exactly that reason.

Q: MICR character set consists of only 2 digits 0 and 1.

Correct answer: FalseThe E-13B character set used for MICR has fourteen characters: the ten digits 0 to 9 and four special symbols marking the transit, amount, on-us and dash fields on a cheque.Restricting it to two would make it useless for printing account and cheque numbers, which is its whole purpose. The characters have a deliberately distinctive shape, with thick and thin strokes, so that each produces a waveform the read head can distinguish unambiguously.

Q: A printer that prints one line at a time and has a predefined set of characters is called _______

Correct answer: DrumA drum printer carries a cylinder engraved with a complete set of characters in a band for every print position. The drum spins continuously and a hammer strikes the paper as the wanted character passes, so a whole line is committed in one revolution.That is what makes it a line printer with a fixed character set: nothing can be printed that is not engraved on the drum, so graphics are impossible. The speed was the attraction, and impact printing let it produce multi-part forms.

Q: Name the device that converts text information into spoken sentences.

Correct answer: Speech SynthesizersA speech synthesiser converts text into audible speech, so it is an output device - the counterpart of speech recognition, which converts speech into text and is an input function.Modern systems work by concatenating recorded fragments or by generating the waveform from a model, and the difficulty is prosody rather than pronunciation: producing the rhythm and intonation that make a sentence sound natural rather than a string of correctly pronounced words.

Q: Which of the following is not a part of a digitizer?

Correct answer: StickA digitizer has three parts: the tablet, which is the flat sensing surface, and one of two pointing devices used on it - a stylus resembling a pen, or a cursor, a puck with cross-hairs for tracing precisely along a line."Stick" names no component of such a device; a joystick is a quite different instrument reporting deflection rather than absolute position. The digitizer's distinguishing property is that it reports where on the tablet the pointer is, which is what makes tracing a drawing possible.

Q: Which is the device used for converting maps, pictures and drawings into digital form for storage in computers?

Correct answer: DigitizerA digitizer is used to trace an existing drawing or map: the operator follows the lines with a stylus or cursor and the tablet reports each position, so the result is a set of coordinates - vector data.A scanner produces an image instead, a grid of pixels with no knowledge of what the lines are. That difference is the point: coordinates can be scaled, edited and measured, which is what mapping and computer-aided design need, whereas an image must first be traced or vectorised.

Q: The process in which a file is partitioned into smaller parts and different parts are stored in different disks is called _________

Correct answer: StripingStriping divides a file into blocks and writes consecutive blocks to different disks, so several drives transfer at once and the effective throughput multiplies.The cost is reliability: with the data spread across every disk, the failure of any one of them loses the file, so striping alone - RAID 0 - is less reliable than a single drive. Combining it with mirroring or parity restores redundancy, which is what the higher RAID levels do.

Q: Which of the following Printers have a speed in the range of 40-300 characters per second?

Correct answer: InkjetSpeeds in the range of tens to a few hundred characters per second describe a character printer, which forms one character at a time.An ink-jet works that way, moving a head across the paper. A laser printer prints a whole page at once and is quoted in pages per minute, and a drum printer prints a whole line at a time and is quoted in lines per minute - both far faster and measured in different units, which is what places them outside this range.

51.

Which of the following is capable of recognizing a pre-specified type of mark by pencil or pen?

A.OMR
B.Winchester
C.Bar code reader
D.Image Scanner

Answer: A

Correct answer: OMR

Optical mark recognition detects the presence or absence of a mark in a predefined position, which is why the forms it reads have printed boxes or lozenges to be filled.

It reads position rather than shape, which makes it simple and very reliable - and is why it is used for examination answer sheets, ballot papers and survey forms. Optical character recognition, by contrast, must identify the shapes of characters, a far harder problem. A bar code reader reads bar widths, and Winchester is an old term for a hard disk.

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52.

Input Devices that use a special ink that contains magnetizable particles of iron oxide are ____

A.Optical disks
B.Magnetic disks
C.MICR
D.Magnetic drives

Answer: C

Correct answer: MICR

Magnetic ink character recognition prints characters in ink containing iron oxide, which is magnetised before reading so that each character produces a distinctive waveform in the read head.

The advantage over optical reading is robustness: the characters can still be read through an overprinted signature, a stamp or a smudge, because it is the magnetic signal rather than the visible image that is sensed. Banks adopted it for cheque processing for exactly that reason.

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53.

MICR character set consists of only 2 digits 0 and 1.

A.True
B.False

Answer: B

Correct answer: False

The E-13B character set used for MICR has fourteen characters: the ten digits 0 to 9 and four special symbols marking the transit, amount, on-us and dash fields on a cheque.

Restricting it to two would make it useless for printing account and cheque numbers, which is its whole purpose. The characters have a deliberately distinctive shape, with thick and thin strokes, so that each produces a waveform the read head can distinguish unambiguously.

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54.

A printer that prints one line at a time and has a predefined set of characters is called _______

A.Laser
B.Drum
C.Inkjet
D.Impact

Answer: B

Correct answer: Drum

A drum printer carries a cylinder engraved with a complete set of characters in a band for every print position. The drum spins continuously and a hammer strikes the paper as the wanted character passes, so a whole line is committed in one revolution.

That is what makes it a line printer with a fixed character set: nothing can be printed that is not engraved on the drum, so graphics are impossible. The speed was the attraction, and impact printing let it produce multi-part forms.

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55.

Which of the following is a name of plotter as well as a printer?

A.Flatbed
B.Laser
C.Drum
D.Impact

Answer: C

Drum is the name of a plotter as well as a printer. Drum printers have a predefined set of characters and print one line at a time. Drum plotters is an ideal device for architects and others who need to generate high-precision hard copy graphics output of widely varying sizes.

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56.

Name the device that converts text information into spoken sentences.

A.Speech Sensors
B.Compact convertors
C.Speech Synthesizers
D.Voice systems

Answer: C

Correct answer: Speech Synthesizers

A speech synthesiser converts text into audible speech, so it is an output device - the counterpart of speech recognition, which converts speech into text and is an input function.

Modern systems work by concatenating recorded fragments or by generating the waveform from a model, and the difficulty is prosody rather than pronunciation: producing the rhythm and intonation that make a sentence sound natural rather than a string of correctly pronounced words.

Discuss in Forum

57.

Which of the following is not a part of a digitizer?

A.Digitizing tablet
B.Cursor
C.Stick
D.Stylus

Answer: C

Correct answer: Stick

A digitizer has three parts: the tablet, which is the flat sensing surface, and one of two pointing devices used on it - a stylus resembling a pen, or a cursor, a puck with cross-hairs for tracing precisely along a line.

"Stick" names no component of such a device; a joystick is a quite different instrument reporting deflection rather than absolute position. The digitizer's distinguishing property is that it reports where on the tablet the pointer is, which is what makes tracing a drawing possible.

Discuss in Forum

58.

Which is the device used for converting maps, pictures and drawings into digital form for storage in computers?

A.Digitizer
B.Scanner
C.Image Scanner
D.MICR

Answer: A

Correct answer: Digitizer

A digitizer is used to trace an existing drawing or map: the operator follows the lines with a stylus or cursor and the tablet reports each position, so the result is a set of coordinates - vector data.

A scanner produces an image instead, a grid of pixels with no knowledge of what the lines are. That difference is the point: coordinates can be scaled, edited and measured, which is what mapping and computer-aided design need, whereas an image must first be traced or vectorised.

Discuss in Forum

59.

The process in which a file is partitioned into smaller parts and different parts are stored in different disks is called _________

A.RAID
B.Mirroring
C.Striping
D.RAID classification

Answer: C

Correct answer: Striping

Striping divides a file into blocks and writes consecutive blocks to different disks, so several drives transfer at once and the effective throughput multiplies.

The cost is reliability: with the data spread across every disk, the failure of any one of them loses the file, so striping alone - RAID 0 - is less reliable than a single drive. Combining it with mirroring or parity restores redundancy, which is what the higher RAID levels do.

Discuss in Forum

60.

Which of the following Printers have a speed in the range of 40-300 characters per second?

A.Inkjet
B.Laser
C.Dot matrix
D.Drum

Answer: A

Correct answer: Inkjet

Speeds in the range of tens to a few hundred characters per second describe a character printer, which forms one character at a time.

An ink-jet works that way, moving a head across the paper. A laser printer prints a whole page at once and is quoted in pages per minute, and a drum printer prints a whole line at a time and is quoted in lines per minute - both far faster and measured in different units, which is what places them outside this range.

Discuss in Forum

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