Keyboard

Keyboard




A computer keyboard is one of the primary input devices used with a computer. Similar to an electric typewriter, a keyboard is composed of buttons that create letters, numbers, and symbols, as well as perform other functions. The following sections provide more in-depth information and answers to some of the more frequently asked questions about the keyboard.

Keyboard overview

The following image shows a 104-key Saitek keyboard with arrows pointing to each section, including the control keys, function keys, LED indicators, wrist pad, arrow keys, and keypad.
Computer keyboard overview

QWERTY keyboard layout

Below is a close up image of a QWERTY computer keyboard with each of the keys selectable. You may hover your mouse cursor over any of the keys to see a description. Clicking any of the keys opens a new page with full details.
Keyboard keysEscape (Esc) KeyFunction KeysPrint Screen (Prt Scrn) KeyScroll Lock KeyPause and Break KeyTilde and Back Quote Key1 and Exclamation Key2 and At Key3 and Hash Key4 and Dollar Sign Key5 and Percent Key6 and Caret Key7 and Ampersand Key8 and Asterisk Key9 and Open Parenthesis Key0 and Close Parenthesis KeyDash and Underscore KeyEquals and Plus KeyBackspace KeyInsert (Ins) KeyHome KeyPage Up (Pg Up) KeyNum Lock KeyDivide KeyTimes KeySubtract KeyTab KeyTop Row KeysOpen Bracket and Open BraceClose Bracket and Close BraceEnter or Return KeyDelete (Del) KeyEnd KeyPage Down (Pg Dn) KeyNumeric KeypadPlus KeyCaps Lock KeysHome Row KeysSemicolon Key and Colon KeySingle Quote Key and Quote KeyBackslash Key and Pipe KeyLeft Shift KeyBottom Row KeysComma Key and Less Than KeyPeriod Key and Greater Than KeyForward Slash Key and Question Mark KeyRight Shift KeyArrow KeysEnter KeyLeft Ctrl KeyLeft Windows KeyLeft Alt KeySpacebarRight Alt KeyRight Windows KeyMenu KeyRight Ctrl KeyPeriod keyCaps Lock, Scroll Lock, and Num Lock LED lights

Keyboard ports and interfaces

USB cable and port
Today, most desktop computer keyboards connect to the computer using either USB or Bluetooth for wireless communication. Before USB, a computer may have used PS/2, serial port, or AT (Din5) as a keyboard interface.

Types of keyboards

Today, most keyboards are similar to each other, but may be missing one or more of the sections mentioned earlier (e.g., the keypad). Where keyboards begin to differ the most is with their constructions. Some keyboards are mechanical, while others use membrane keys. Some keyboards are split down the middle and others even fold in half or roll up. While most keyboards use the QWERTY layout, there are still people who use the DVORAK layout.

Laptop keyboards

A laptop keyboard is arranged differently than a desktop keyboard to accommodate the laptop's narrower footprint. Most laptop keyboards are made smaller by placing the keys closer and by including an Fn key. The Fn key is used in conjunction with other keys to perform special functions. For example, pressing the Fn key and the up or down arrow on the keyboard shown below, increases and decreases the screen brightness. Furthermore, many laptop keyboards omit the numeric keypad to save space.
Laptop Fn function keyboard key

Smartphone and tablet keyboards

Apple iPhone keyboard
Today's smartphones and tablets do not come with a physical keyboard, although it may be purchased as an optional peripheral add-on. These devices utilize a thumb keyboard or on-screen keyboard to type messages and enter text into various fields. The image is an example of the Apple iPhone on-screen keyboard, used on all Apple touch-based devices.

Why is the keyboard an input device?

A computer keyboard is considered an input device because it only sends data to a computer and does not receive any information back.

What are multimedia keys?

Multimedia keys are those keys which allow the user to control music on their computer keyboard. These keys add functionality such as play, pause, stop, rewind, fast-forward, skip track, eject, shuffle, and repeat.

Also see :- AFK, Alt, Ctrl, Delete, Enter, Hardware terms, Home row keys, Keyboard terms, Natural keyboard, Numeric keypad, OSK, Shift, Spacebar, Tab, Typewriter, Virtual keyboard, Windows key

Comments

Post a Comment

Popular posts from this blog

Attitude Shayari In hindi

Image
Attitude Shayari in Hindi Attitude Shayari दिल में मोहब्बत का होना ज़रूरी है, वरना याद तो रोज दुश्मन भी किया करते हैं। Dil me mohabbat ka hona jruri hai Vrna yaad to roj dushman bhi kiya krte hain अक्सर वही लोग उठाते हैं हम पर उँगलियाँ, जिनकी हमे छुने की औकात नहीं होती। Aksar Wohi Log Uthhate Hain Hum Par Ungliyan, Jinki Humein Chhune Ki Aukaat Nahi Hoti. दुश्मनों को सज़ा देने की एक तहज़ीब है मेरी, मैं हाथ नहीं उठाता बस नज़रों से गिरा देता हूँ। Dusmano ko sjaa dene ki ek tehjeeb hai meri Main haath nhi uthata bs najro se gira deta hu जहाँ कदर न हो अपनी वहाँ जाना फ़िज़ूल है,  चाहे किसी का घर हो चाहे किसी का दिल। Jha kadr na ho apni wha jaana fijool hai Chahe kisi ka ghr ho chahe kisi ka dil Attitude Shayari in Hindi Attitude Shayari दिल में मोहब्बत का होना ज़रूरी है, वरना याद तो रोज दुश्मन भी किया करते हैं। Dil me mohabbat ka hona jruri hai Vrna yaad to roj dushman bhi kiya krte hain अक्सर वही लोग उठाते हैं हम पर उँगलियाँ, जिनकी हमे छुने की औका...
Read more

Smart Phone Addiction

Image
Smartphone Addiction Worried about your phone or Internet use? These tips can help you break free of the habit and better balance your life, online and off. What is smartphone addiction? While a smartphone, tablet, or computer can be a hugely productive tool, compulsive use of these devices can interfere with work, school, and relationships. When you spend more time on social media or playing games than you do interacting with real people, or you can’t stop yourself from repeatedly checking texts, emails, or apps—even when it has negative consequences in your life—it may be time to reassess your technology use. Smartphone addiction, sometimes colloquially known as “nomophobia” (fear of being without a mobile phone), is often fueled by an Internet overuse problem or Internet addiction disorder. After all, it’s rarely the phone or tablet itself that creates the compulsion, but rather the games, apps, and online worlds it connects us to. Smartphone addiction can encompass a...
Read more

Computer mouse

Image
Mouse A  computer mouse  (plural  mice  or  mouses ) is a hand-held  pointing device  that detects  two-dimensional  motion relative to a surface. This motion is typically translated into the motion of a  pointer  on a  display , which allows a smooth control of the  graphical user interface  of a  computer . The first public demonstration of a mouse controlling a computer system was in 1968. Mice originally used a ball rolling on a surface to detect motion, but modern mice often have optical sensors that have no moving parts. Originally wired to a computer, many modern mice are cordless, relying on short-range radio communication with the connected system. In addition to moving a cursor, computer mice have one or more  buttons  to allow operations such as selection of a menu item on a display. Mice often also feature other elements, such as touch surfaces and  scroll wheels , which ...
Read more