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160+ Introduction to Computers Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Computer Applications (BCA) .

Chapters

Chapter: Unit 2
51.

The _____________ pen is a small input device used to select and display objects on a screen.

A. Ink
B. Magnetic
C. Light
D. None of the above
Answer» C. Light
52.

The joystick is a ____________ stick that moves the graphic cursor in the direction the stick is moved.

A. Parallel
B. Horizontal
C. Straight
D. Vertical
Answer» D. Vertical
53.

___________________ consists of a spherical ball, which moves within a socket and has a stick mounted on it.

A. Joystick
B. Trackball
C. Web Camera
D. All of the above
Answer» A. Joystick
54.

The user moves the ball with the help of the stick that can be moved _________________________, to move and position the cursor in the desired location.

A. Left
B. Right
C. Forward or Backward
D. All of the above
Answer» D. All of the above
55.

Joysticks typically have a button on __________that is used to select the option pointed by the cursor.

A. Bottom
B. Left
C. Right
D. Top
Answer» D. Top
56.

The ____________ is a pointing device that is much like an inverted mouse.

A. Joystick
B. Trackball
C. USB
D. Scanning Device
Answer» B. Trackball
57.

A web camera is a video capturing device attached to the computer system, mostly using a _________________.

A. Socket
B. USB Port
C. Cable
D. None of the above
Answer» B. USB Port
58.

Web camera is used for video _____________.

A. Conferencing
B. Security
C. Control Input Device
D. All the above
Answer» D. All the above
59.

Scanning devices are input devices used for direct data entry from the source document into the ______________________ .

A. Keyboard
B. Screen
C. Computer System
D. None of the above
Answer» C. Computer System
60.

With the help of the _______________ you can capture your images and documents and convert it into digital formats for easy storage

A. Scanner
B. Web Camera
C. Camera Phone
D. Videography
Answer» A. Scanner
61.

There are two types of scanners_______________ .

A. Contact
B. Laser
C. Digital
D. Both (A) and (B)
Answer» D. Both (A) and (B)
62.

_______________ contact scanners make contact as they are brushed over the printed matter to be read.

A. Laser
B. Digital
C. Hand-held
D. None of the above
Answer» C. Hand-held
63.

_____________ scanners are more versatile and can read data passed near the scanning.

A. Laser-based
B. Hand-held
C. Contact
D. Either (A) or (B)
Answer» A. Laser-based
64.

Source data automation is the _________________ development for data input technologies.

A. Last
B. Second
C. Fifth
D. Recent
Answer» D. Recent
65.

The ______________ devices can scan marks from a computer-readable paper.

A. CRT
B. OMR
C. LCD
D. All of the above’
Answer» B. OMR
66.

A___________ film transistor is comprised of a semiconductor layer.

A. Thin
B. Broad
C. Long
D. Straight
Answer» A. Thin
67.

The role of semiconductor layer is to add polysilicon layer whose electron mobility is_____________times higher than that of an amorphous silicon layer.

A. One-Third
B. 100
C. 110
D. One-Fourth
Answer» B. 100
68.

_________________ are based on the use of a series of nozzles for propelling droplets of printing ink directly on almost any size of paper.

A. Dot-matrix
B. Laser Printers
C. All-in-One Printers
D. Inkjet Printers
Answer» D. Inkjet Printers
69.

Daisy-wheel printer comes in the category of output device and quite similar to ______________ .

A. Keyboards
B. Typewriters
C. Lasers
D. None of the above
Answer» B. Typewriters
70.

Another type of impact printer somewhat similar to the daisy-wheel is the _________ printer.

A. Line
B. Dot-matrix
C. Inkjet
D. Either (A) or (B)
Answer» A. Line
71.

The page printers are _______________ speed non-impact printers.

A. Slow
B. High
C. Medium
D. Fixed
Answer» B. High
72.

The printing speed of page printer is very high and the output is __________ at a time.

A. Three
B. Multiple
C. Ten
D. A page
Answer» D. A page
73.

_________________ are formed by heated elements being placed in contact with special heat sensitive paper forming darkened dots when the elements reach a critical temperature.

A. Numerical
B. Words
C. Characters
D. None of the above
Answer» C. Characters
74.

___________________ printers are the oldest print technologies still in active production.

A. Impact
B. Ink
C. Laser
D. Dot-matrix
Answer» A. Impact
75.

These are the devices used for getting out information from the computer

A. Input
B. Keyboard
C. Output
D. None of the above
Answer» C. Output
76.

An __________ printer would be non-impact as they work through spraying ink or toner and fusing it to the paper.

A. Inkjet
B. Wax
C. Laser or LED
D. All of the above
Answer» D. All of the above
77.

The term __________________ is important primarily in that it distinguishes quiet printers from noisy and impact types of printers.

A. Impact
B. Non Impact
C. Force
D. None of the above
Answer» B. Non Impact
78.

Computers have an _______________ subsystem,

A. Input
B. Output
C. Proper
D. Both (A) and (B)
Answer» D. Both (A) and (B)
79.

The CRT monitor creates a picture out of many rows or lines of tiny__________ dots.

A. Black
B. White
C. Plain
D. Colored
Answer» D. Colored
80.

In plasma type of displays_____________ gas is used.

A. Ionized
B. Oxygen
C. Carbon dioxide
D. All the above
Answer» A. Ionized
Chapter: Unit 4
81.

The time required to locate and retrieve the data from the storage unit is

A. Access time
B. Access mode
C. Storage capacity
D. Storage cost
Answer» A. Access time
82.

_________stores binary information using clocked sequential circuits.

A. RAM
B. SRAM
C. DRAM
D. ROM
Answer» B. SRAM
83.

_________ stores binary information in the form of electric charges that are applied to capacitors inside the chip.

A. RAM
B. SRAM
C. DRAM
D. ROM
Answer» C. DRAM
84.

The data recording density is measured in

A. Bits per inch
B. Bytes per inch
C. Kilobytes per inch
D. Megabytes per inch
Answer» B. Bytes per inch
85.

Storage capacity of a tape is equal to the product of data recording density and ________.

A. Area of tape
B. Breadth of tape
C. Height of tape
D. Length of tape
Answer» D. Length of tape
86.

Inter-track gaps are used to separate the adjacent tracks so that the interference of magnetic fields is ________.

A. Minimized
B. Maximized
C. Expanded
D. None of the above
Answer» A. Minimized
87.

Tracks are commonly divided into sections called _________.

A. Cells
B. Sectors
C. Both (A) and (B)
D. None of the above
Answer» B. Sectors
88.

If there are 100 tracks on each disk surface, there are ________ cylinders in the disk pack.

A. 99
B. 101
C. 100
D. 1000
Answer» C. 100
89.

If a disk pack consists of 4 plates each having 2655 tracks having 125 sectors per track. Also, each sector can store 512 bytes, then, storage capacity is approximately.

A. 1 MB
B. 1GB
C. 1 X 1010 bytes
D. 10 GB
Answer» B. 1GB
90.

The average seek time in most systems is

A. 10-100 milliseconds
B. 10-100 seconds
C. 10-100 minutes
D. 10-100 hours
Answer» A. 10-100 milliseconds
91.

The time taken for positioning the head on a specific track is called

A. Average time
B. Latency time
C. Seek time
D. None of the above
Answer» C. Seek time
92.

The rotational speed of a disk is measured in

A. Rotation per minute
B. Rotation per second
C. Rotation per hour
D. None of the above
Answer» A. Rotation per minute
93.

Which of the following is used as wildcards

A. /
B. =
C. *
D. All of the above
Answer» C. *
94.

For a 3.5 disk high density disk which has 80 tracks, 18 sectors/tracks, 512bytes/sector, the disk storage capacity is approximately

A. 1.4 MB
B. 1.4 GB
C. 1.4 KB
D. None of the above
Answer» A. 1.4 MB
95.

The size for the disk platters range between _________ in diameter.

A. 1 to 10 inches
B. 1 to 15 inches
C. 1 to 20 inches
D. 1 to 14 inches
Answer» D. 1 to 14 inches
96.

A zip disk has a capacity of about

A. 1 MB
B. 70 MB
C. 150 MB
D. 100 MB
Answer» D. 100 MB
97.

A CD is ________ in diameter and made up of polycarbonate plastic disk.

A. 4.75 inch
B. 5.75 inch
C. 6.75 inch
D. 3.75 inch
Answer» A. 4.75 inch
98.

The average latency depends on _______ of the disk.

A. Rotation per sec
B. Rotation per minute
C. Rotation per hour
D. None of the above
Answer» B. Rotation per minute
99.

The current maximum capacity of a CD-ROM is

A. 700MB
B. 750 MB
C. 900 MB
D. 1200 MB
Answer» C. 900 MB
100.

The storage capacity of a dual layer blu-ray disc is

A. 20 GB
B. 30 GB
C. 40 GB
D. 50 GB
Answer» D. 50 GB

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