Input To Computer ( Introduction to Computer ) Advantages and Disadvantages

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2. Presentation of Introduction to
Computer
Topic.
Input to Computer
Bs Civil Technology ( 2019-2023 )
University of Sialkot ( USKT )
Submitted To Respected Sir Dr. Mutahir Sb
Submitted by
Student Name Roll No
Saleem Abbas 024
M. Umer 025
Usman Majid 026
Haider Ali 028
Usman Akram 013

3. Input to computer
Computer:
A computer is a machine or device that performs processes, calculations and operations based on instructions provided by a software or hardware
program. It is designed to execute applications and provides a variety of solutions by combining integrated hardware and software components.
Input:
Input is any data and instructions entered into the memory of a computer.
Input Devices:
An input device is any hardware component that allows users to enter data
and instructions into a compute. This can be done manually or
automatically.
Examples of input devices include:
keyboards, mouse, scanners, digital cameras, joysticks, and microphones.

4. Keyboards:
A computer keyboard is an input device that allows a person to enter letters, numbers, and other symbols (these are called characters in
a keyboard) into a computer. ... Using a keyboard to enter lots of data is called typing. A keyboard contains many mechanical switches or push-
buttons called "keys". There are different types of keyboards:
 Ergonomic keyboard
 Concept keyboards
Advantages:
 Fast entry of texts into documents
 A well known method of data entry.
 Most people find it easy to use.
 Easy to do verification test.
Disadvantages:
 People with limited arm/wrist may not find it easy to use.
 Data entry may be slow.
 They use up valuable desk space.

5. Mouse:
Pointing devices that are used to control the position of a pointer on the screen, selecting commands, resizing images as well as opening, closing
and minimizing applications.
Advantages:
 Faster to select options.
 Rapid navigation through applications.
 Take up little desk space.
Disadvantages:
 People with restricted hand/wrist movement may not
find it easy to use.
 They get damaged easily.
 They are difficult to use where there is no flat surface.

6. Touch Screens:
Allows a user to simply touch the touch the button/icon on the screen to select a text, task or action. It is mostly used on phones, iPad's, petrol
stations, ATMs, Interactive boards and other payment methods.
Advantages:
 Fast entry of options than keyboards.
 Very easy to choose options.
 User friendly method of inputting options.
 They are tamper proof.
Disadvantages:
 Limited number of options are available.
 Can lead to RSI.
 Screen can get damage or dirty.

7. Digital Cameras:
Used to produce photographs for transfer to a computer directly or to print out by connecting directly to a printer. Photographs can also be
uploaded directly into applications software such as word processors, DTP, etc.
Advantages:
 It produces better quality photographs.
 Easier and faster to upload photographs to a computer.
 No need to develop photographs before printing.
 It is easy to delete unwanted images.
 Memory card used can store several photographs.
Disadvantages:
 User needs to be computer literate.
 There is some artistry lost since some clever software can make
corrections to photographs.
 Quality of photograph depends on quality of camera lens.
 Images can easily fill up computer memory.

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