Introduction to Information Technology · Unit 4 · 4 hrs
Input and Output Devices
Exam-focused notes for Input and Output Devices (Introduction to Information Technology, CSC114): what the TU syllabus asks and how it has actually been tested, with 8 solved past questions from this unit.
What this unit covers
- Introduction
- Input-Output Unit
- Input Devices
- Human Data Entry Devices
- Source Data Entry Devices
- Output Devices
- I/O Port
- Working of I/O System
I/O Port
What is I/O port? Explain working of I/O system. [5]
An I/O port is a connection point (interface) through which I/O devices are attached to the computer. It acts as a communication channel between the computer and external devices. There are many standard ports available on the backside of a computer, such a...
Full solved answer →Human Data Entry Devices
Define hard copy and soft copy devices. List any six human data entry devices. [5]
A hard copy device is an output device that produces output in a physical, tangible form that can be touched and carried. The output is printed or plotted on paper or similar material and exists permanently even when the computer is turned off. Examples: Pr...
Full solved answer →Explain the working mechanism of a keyboard. [5]
A keyboard is one of the most common input devices of a computer system. It allows users to enter data such as characters, words, text, and commands into the computer. The keyboard has been a standard input device since the third generation of computers, wh...
Full solved answer →Explain the working mechanism of a keyboard. [5]
A keyboard is one of the most common input devices used with a computer. It allows users to enter data such as characters, words, text, and commands into the computer system. The keyboard acts as a hardware component through which the user communicates with...
Full solved answer →Output Devices
Discuss different types of printers with examples. [5]
A printer is an output device that produces a hard copy (printed output) of documents, images, or other data from a computer onto paper or other media. Printers are broadly classified into two main categories: --- Impact printers work by physically striking...
Full solved answer →Mention the use of plotter. How quality of printer is determined? [5]
A plotter is a hard copy output device used to produce high-quality drawings, diagrams, and graphical output on paper or other surfaces. The main uses of a plotter are: 1. Engineering Drawings: Plotters are widely used by engineers to produce precise techni...
Full solved answer →Source Data Entry Devices
Discuss about the source data entry device with example. [5]
Source data entry devices are input devices that are used for audio input, video input, and to enter data from a source document directly into the computer. Unlike traditional input devices (such as keyboard or mouse), source data entry devices do not requi...
Full solved answer →Input Devices
Explain any two input devices in detail. [5]
An input device is hardware that allows a user to enter data, instructions, or commands into a computer for processing. Input devices are mainly of two kinds: - Human data entry devices (keyboard, mouse, joystick, light pen, touch screen, etc.) - Source dat...
Full solved answer →Make Unit 4 stick
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