CFP - COMPUTER HARDWARE

Computer hardware

includes the physical parts of a computer, such as the central processing unit, random access memory, motherboard, computer data storage, graphics card, sound card, and computer case. It includes external devices such as a monitor, mouse, keyboard, and speakers

Computer hardware

includes the physical parts of a computer, such as a case, central processing unit (CPU), random access memory (RAM), monitor, and mouse which processes the input according to the set of instructions provided to it by the user and gives the desired output

Input Devices

Devices that send data to the computer

Output Devices

Devices that show the result after processing

Storage Devices

Devices used to store data

Input devices

any hardware device that sends data to a computer, allowing you to interact with and control it

Input devices

a piece of equipment used to provide data and control signals to an information processing system

Keyboard

The most frequent and widely used input device for entering data into a computer. Layout is similar to that of a typical typewriter

Numeric Keys

It is used to enter numeric data or move the cursor. It usually consists of a set of 17 keys

Typing Keys

The letter keys (A–Z) and number keys (0–9)

Control Keys

These keys control the pointer and the screen such as arrow keys, Home, End, Insert, Alternate (Alt), Delete, Control (Ctrl), and Escape (Esc)

Special Keys

Enter, Shift, Caps Lock, NumLk, Tab, and Print Screen are among these keys

Function Keys

The 12 keys from F1 to F12 located on the topmost row of the keyboard

Mouse

The most common pointing device. An input device that lets you move the mouse on a flat surface to control the coordinates and movement of the on-screen cursor/pointer

Joystick

A pointing device that is used to move the cursor on a computer screen. Its function is comparable to that of a mouse and is primarily used in CAD and playing video games

Stylus

A small pen-shaped instrument whose tip position on a computer monitor can be detected. It is used to draw or make selections by tapping and provides more accurate and controllable input

Scanner

An input device that functions similarly to a photocopier and is used to transfer information from paper to the computer’s hard disk for manipulation

Optical Mark Reader

A device used in educational institutions to check answers to objective exams by recognizing marks made by pencil or pen

Optical Character Reader

A device that reads printed text by scanning it character by character, converting it into machine-readable code, and saving it to system memory

Bar Code Reader

A device that reads printed text by scanning it character by character, converting it into machine-readable code, and saving it to the system memory

Web Camera

A device built inside a computer or connected via USB that can take images and record video, capable of HD video but with lower quality than other cameras

Microphone

An input device that receives voice signals and converts them into digital form, either built-in or connected via a 3.5mm audio jack

Output devices

the devices that show us the result after giving input to a computer system

Monitor

Also known as Visual Display Unit (VDU), the primary output device that creates images using pixels arranged in a rectangular pattern, where more pixels mean sharper images

Cathode-Ray Tube Monitor

A vacuum tube containing electron guns that emit beams to display images on a phosphorescent screen

Flat-Panel Display Monitor

A type of video display with less volume, weight, and power consumption, used in calculators, video games, monitors, and laptops

Printer

An output device that prints information on paper and creates a durable representation of graphics or text

Laser Printer

A printer that uses laser light to produce dots forming characters and produces high-quality text and graphics using a negatively charged drum

Inkjet Printer

Uses water-based ink, ideal for photos and colored printing, and can print on a range of materials

Thermal Printer

A printer that uses a heated thermal printhead and heat-sensitive paper to produce images by turning coated areas black when heated

3D Printer

A device that creates physical objects from digital models by depositing material in successive layers

Speakers

Devices that produce sound from signals provided by the computer’s sound card and can be wired or wireless

Projector

An optical device that displays images, videos, or other content on a large screen or surface

Plotter

A computer output device used to produce high-quality, large-scale graphics and drawings and requires a graphics card

Computer hardware

refers to the physical and tangible components of a computer system

Computer hardware components

include the electronic and mechanical parts that make up a computer and enable it to perform tasks and process data

Computer hardware devices

include the central processing unit (CPU), memory (RAM), storage devices, input and output devices, motherboard, GPU, PSU, cooling systems, expansion cards, ports, and connectors

Computer hardware function

is the physical infrastructure that works with software to enable computing and data processing

Computer hardware classification

refers to input, output, and storage devices

Computer input devices

are hardware components that allow users to interact with a computer system by providing data or commands

Computer input purpose

is to enable users to input information, control software, and perform tasks

Computer input devices description

are hardware peripherals designed to accept and transmit data, commands, or user-generated actions to a computer

Input devices function

facilitate communication between users and computers by translating physical actions into digital signals

Examples of input devices

include keyboards, mice, touchpads, touchscreens, graphics tablets, scanners, and microphones

Keyboard

is a peripheral input device consisting of keys used for inputting textual and numeric data into a computer

Keyboard function

is used for typing documents, sending emails, playing video games, and executing commands

Keyboard layout

refers to the arrangement of keys in a specific format

Keyboard modern features

include multimedia control keys, shortcut keys, and specialized function keys

Keyboard input process

keys are pressed to produce characters, symbols, and commands sent to the computer

QWERTY layout

is the most common keyboard layout named after the first six letters on the top row

ANSI keyboard layout

is a standard layout used in North America with 101 or 104 keys

ANSI keyboard meaning

the numbers 101 and 104 represent the number of keys on the keyboard

ISO keyboard layout

is a standard layout used in European countries

ISO 102-key layout

is a more compact version of the ISO keyboard

ISO 105-key layout

includes additional keys such as those for typing the Euro symbol

ISO keyboard purpose

is designed to accommodate different European languages and preferences

ABNT keyboard layout

is tailored to the Portuguese language used in Brazil

ABNT keyboard feature

includes specific characters and symbols for Brazilian Portuguese

ABNT keyboard variation

key arrangement may vary slightly depending on the manufacturer

JIS keyboard layout

is designed for the Japanese language

JIS keyboard feature

supports a large character set and unique input methods

JIS keyboard usage

commonly used in Japan for computers and digital devices

Mouse

is a pointing device used to interact with graphical user interfaces and control the cursor

Mouse function

is used for selecting items, navigating menus, and moving objects

Mouse importance

is essential for interacting with software and operating systems

Mouse buttons

include left and right buttons used for clicking, selecting, and dragging

Mouse additional buttons

may be customizable for shortcuts and extra functions

Scrolling wheel

is a feature that allows users to scroll through documents and web pages

Optical or laser sensor

tracks mouse movement on a flat surface and translates it into cursor movement

Mouse connectivity

includes wired USB, Bluetooth, and radio-frequency (RF) connections

Touchpad

is a built-in input device commonly found on laptops used to control the cursor

Touchpad function

allows navigation and interaction using touch gestures

Touch-sensitive surface

responds to finger or stylus movement to control the cursor

Multi-touch gestures

allow actions like pinch-to-zoom, scrolling, and swiping using multiple fingers

Touchpad buttons

are integrated buttons used for selecting and right-clicking

External touchpad

is a separate device used for better comfort or functionality on desktops

Graphic tablet

is an input device used to create digital artwork by drawing with a stylus

Graphic tablet users

include artists, designers, and illustrators

Graphic tablet function

converts hand-drawn input into digital form

Scanner

is an input device that converts physical documents into digital format

Scanner function

captures analog data and transforms it into editable digital data

Scanner usage

used in offices, design, publishing, and archiving

Flatbed scanner

has a flat glass surface where documents are placed for scanning

Sheet-fed scanner

automatically feeds multiple sheets for fast document scanning

Handheld scanner

is portable and manually moved across the document

Drum scanner

uses a rotating drum for high-resolution and detailed image scanning

3D scanner

captures the three-dimensional shape of objects for design and engineering use