INPUT DEVICES Flashcards

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1
Q

Various types of input devices most commonly used are:

A
  1. Punch Cards
  2. Keyboard
  3. Mouse
  4. Light Pen
  5. Joystick
  6. Track ball
  7. Touch Screen
  8. Digitizer
  9. Scanner
  10. Voice Recognition Scanner
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2
Q

____ is recorded onto punch cards or punch tapes using standard codes, like the Hollerith code

A

Data

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3
Q

Data is recorded onto punch cards or punch tapes using ____, like the _____.

A

standard codes, Hollerith code

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4
Q

A ____ is used to transcribe the data onto the
card.

A

Punch card machine

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5
Q

Characteristic of punch card

A

They are cheaper and reliable.

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6
Q

One of the most commonly used input devices. And it has keys made up of letters, numbers, symbols, and special function keys

A

Keyboard

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7
Q

Computer keyboard is similar to

A

Typewriter keyboard

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8
Q

It is used to display the data entered by the operator with the keyboard

A

A display screen or monitor (Cathode Ray Tube)

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9
Q

A special symbol, called a
___, indicates the position on the screen.

A

Cursor

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10
Q

Used to enter alphabets

A

A-Z

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11
Q

Used to enter numbers

A

0-9

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12
Q

To Move the cursor in the specified
direction

A

Up, Down, Left, Right (Arrow Keyes)

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13
Q

Special Function Keys

A

F1-F12

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14
Q

To move the cursor up or down by one-page enter:

A

PgUp/PgDn

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15
Q

A Special key To Select the other option shown normal character on the same key

A

Shift (shift na tayo)

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16
Q

Activates the keypad on the right side of the keyboard. In the normal mode, this numeric pad works as per the function written below the number on
the key

A

Num Lock

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17
Q

Advantages of Keyboard

A

• It is very easy to use a keyboard
• It offers several facilities
• Editing or changing the input data is very easy with the help of the keyboard
• It is relatively Inexpensive

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18
Q

____ is a pointing device and it is used to control and manipulate cursor
movement on the monitor.

A

Mouse

19
Q

TRUE OR FALSE

The mouse usually has three or four buttons on it and a rollerball
which signals the movements made by the mouse on a flat surface.

A

TRUE

20
Q

The various types of the mouse in use are

A

• Mechanical mouse
• Optical mouse
• Optical mechanical mouse

21
Q

Picking Device

A

Light pen

22
Q

The light pen contains a ___ placed in a small tube.
This ___ detects the presence of light on the

A

photocell, photocell, CRT (monitor).

23
Q

TRUE OR TRUE

The tip of the pen is
moved on the surface of the screen to write or sketch data. The light pen is especially
useful in Computer-Aided Design (CAD) applications

A

TRUE

24
Q

It is mainly used in video
game applications.

A

Joy stick

25
Q

The position and speed with which the joystick is moved are converted into ___
by the use of a lever. These signals are then sent to the ___. This in turn
controls the movement of the cursor on the screen

A

digital signals, computer system

26
Q

The ___ uses a hard-sphere to control cursor movement. The ___ can be rotated in any direction by hand and this is translated into a digital signal to control the cursor
movement on the screen.

A

Trackball, bail

27
Q

Is is a transparent plate which is fitted over the CRT. Input is registered
when a finger or any other object comes in contact with the plate

A

Touch screen/ Touch panel

28
Q

Two types of touch panels:

A

• Optical touch panels
• Electric touch panels

29
Q

A ____ converts graphical or pictorial data into digital form which can be directly entered and stored on a computer. It is also called as a ___.

A

Digitizer, graphics tablet

30
Q

Two types of digitizer

A

Image scan digitizer and flatbed digitizer

31
Q

In the ___, the entire image is scanned and reproduced automatically. Therefore, the image scan digitizers are more powerful as compared to flatbed digitizers.

A

image scan digitizer

32
Q

___ are mainly used in simple drawings, graphs, etc. whereas image scan digitizers are used for photographs and pictures.

A

Flatbed digitizers

33
Q

The ____ can directly enter text and images into the computer memory. Therefore,
the duplication work of entering data is eliminated and this also results in increased accuracy. The speed of data entry also increases.

A

Scanner

34
Q

Two types of scanners

A
  1. Optical Scanners
  2. Magnetic Ink Character Recognition devices
35
Q

The ____ uses a light source and sensor for reading the information on the paper. It can read characters, pictures, graphics from the paper.

A

Optical scanner

36
Q

Common types of optical scanner

A
  1. Optical Mark Reader
  2. Optical Character Reader
37
Q

This is capable of reading pre-specified marks
made by pencils or pens with the help of light. Light is focused on the page that is to be scanned. The reflected light pattern is detected by the device. These types of scanners are normally used where the data is preprinted for applications.
eg. answer papers of the objective tests where the answers are marked with pencils or preprinted forms

A

Optical mark reader

38
Q

The ___ can read
alphabets, characters, and numbers printed on paper. These characters can be
either handwritten or typed. However, special fonts are required to be used while
typing. In the case of handwritten data, the characters have to be of standard
predefined size. The OCR reads each character as a collection of pixels. The light
which is reflected from the page to be scanned is converted into binary data.
OCRs are available in various sizes and speeds. These devices are expensive and are mainly used in processing where the data volumes are large.

A

Optical Character Reader

39
Q

The ___ is a device that reads barcoded data. It is also called as the data that is codes in the form of light and dark lines.

A

bar code reader

40
Q

Bar code readers are normally used in applications like labeling of products in retail shops, supermarkets, etc. A ___ is used to read the bar code.

A

laser beam scanner

41
Q

The most commonly used bar code is the ____. In this code, the bars are coded as __ digits. The first five digits define the ____, and the remaining five digits denote the ___ of the manufacturer.

A

Universal Product Code (UPC),
10,
manufacturer or supplier,
actual product

42
Q

___ is a special type of input device, this mainly finds application in banking areas. ___
is used to encode the characters to be read. This ink contains ___ particles. When
a cheque is presented in the bank, the amount is encoded by the bank employee in the
lower right corner and the cheque is then processed with MICR. Special character sets
like __ and __ are used by these devices to encode data. The E13B has __ special characters and the digits __. The CMC7 has __ special characters, digits _, and all ___.

A

Magnetic Ink Character Recognition (MICR),
Magnetic ink,
Iron oxide,
E13B,
CMC7,
4 and digits 0-9,
5 and digits 0-9 and all alphabets

43
Q

This system allows the user to talk with the computer. It
consists of a microphone or telephone into which the operator speaks. The speech is
converted into ___.

A

Voice Recognition System, electrical signals