Basics of IT Short
Questions Answers. This is the 2nd post about 1sy Year | ICS Part-I Computer Science Chapter No.1: (Basics
of Information Technology) | Short Questions and Answers. The following objective questions are very important for the final examinations of all Boards of Punjab as well as Pakistan:
Chapter No.1: Basics of Information Technology
Short Questions and Answers - 2
Q.1: What is the use of the Print Screen key?
Answer:
The print screen key causes the current screen display to be taken a copy
of information or image on the screen.
Q.2: Define the Scroll Lock key?
Answer:
The scroll lock key causes lines of text images – not the cursor – to move.
When the computer is in the Scroll Lock mode, the status light under “Scroll
Lock” lights up.
Q.3: What is Pause Key?
Answer:
The Pause Key causes the screen to pause when information is appearing on
the screen too fast to read.
Q.4: Define pointing devices?
Answer:
Pointing devices control the positions of the cursor or pointer on the
screen. For example, mouse, trackball, pointing stick, and touchpad, etc.
Q.5: What is a mouse?
Answer:
A mouse is an input that looks a little bit like a mouse. It has a ball
on its underside that is rolled on a flat surface or mouse pad. The rolling
movement causes a corresponding cursor movement on the screen.
Q.6: What is meant by mouse events?
Answer:
The tasks which are performed by the mouse are called mouse events. There
are three types of mouse events i.e. left-click, right-click, and drag event.
Q.7: What is a trackball?
Answer:
The trackball is a movable ball, on top of a stationary device, that is
rotated with fingers or palm of the hand. Its popularity surged with the advent
of laptop computers where traveling users found themselves without a flat
surface to roll the traditional mouse.
Q.8: Define Pointing Stick?
Answer:
A pointing stick is a pointing device that looks like a pencil eraser protruding
from the keyboard between the G, H, and B keys. We move the pointing stick with
our forefinger while using the thumb to press buttons located in front of the
space bar.
Q.9: What is a joystick?
Answer:
A joystick is a pointing device that consists of a vertical handle like a
gearshift lever mounted on a base with one or two buttons. It is basically used
in video games and in some computer-aided-design systems.
Q.10: What is a TouchPad?
Answer:
The touchpad is a small, flat surface over which we slide our finger,
using the same movements as we would with a mouse. As we move the finger, the
cursor follows the movement. We click by tapping the finger on the pad’s
surface or by pressing a button positioned close by the pad.
Q.11: What is meant by a portable computer?
Answer:
The computer that is easy to carry is called a portable computer e.g.
laptop, iPad, and iPhone, etc.
Q.12: Define Touch Screen?
Answer:
A touch screen is a video display screen that is sensitized to receive
input from simply touching our fingers onto it. It is covered with a plastic
layer, behind which are invisible beams of infrared light. We simply touch the
provided buttons or menus and get the information on the display screen
accordingly.
Q.13: What is a Light Pen?
Answer:
The light pen is a light-sensitive stylus, or pen-like device, connected
by a wire to the computer terminal. The user brings the pen to the desired point
on the display screen and presses the pen button, which identifies that screen
location to the computer. Engineers, graphic designers, and illustrators use the light pen.
Q.14: What is Digitizing Graphic Tablet?
Answer:
Digitizing Graphic Tablet is used primarily in design and engineering.
When used with drawing and painting software, a digitizing tablet and stylus
allow us to do shading and many other effects similar to those artists achieve
with a pencil, pen, or charcoal.
Q.15: What is a stylus?
Answer:
A stylus is a pen-like device with which the user sketches an image.
Q.16: What is a puck?
Answer:
A puck is a copying device with which the user copies an image, such as
an architectural drawing or a civil engineering map. It looks a bit like a
mouse but has different types of buttons and a clear plastic section extending
from one end with crosshairs printed on it.
Q.17: Define Pen-based Systems?
Answer:
The pen-based system connects an instructor’s electronic whiteboard on
the classroom wall with student’s pen computers, so that the students could
receive notes directly, without having to copy information word for word. The idea
is that the students should concentrate on the lecture listening only.
Q.18: What are the source data-entry devices?
Answer:
The devices which are used for direct data entry to computer systems are
called source data-entry devices. For example, bar-code reader, MICR, and OMR, etc.
Q.19: What is Universal Product Code?
Answer:
Bar codes are the vertical zebra-stripped marks we find on most of the
manufactured products in the market. This bar-code system is also called
Universal Product Code.
Q.20: What is Bar-Code Reader?
Answer:
The vertical bar codes are read by bar-code readers, photoelectric
scanners that translate the bar-code symbols into digital code, which is then
fed to the computers for further processing.
➤ Basics of IT - Short Questions Set-1
➤ Basics of IT - Short Questions Set-3
➤ Basics of IT - Short Questions Set-4
➤ Basics of IT - Short Questions Set-5
➤ Information Networks - Short Questions
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