Embedded Files
Input device – Hardware part
Work -Provide the data to Computer
Input Device Types-
1. Text Based input Device
Ø Keyboard
2. Pointing Devices / cursor control input Devices
Ø Mouse
Ø Joystick
Ø Track ball
Ø Touched pad
Ø Stylus
Ø Light pen
Ø Touch Pen
3. Scanning input Devices
Ø Scanner
Ø Digitizer
Ø MICR
Ø OMR
Ø OCR
Ø BCR
Ø QR (Quick Response reader)
4. Other input Devices
Ø Virtual reality (Video Game)
Ø Digitizer
Ø Biometric
Ø Web Camera
Ø Micro phone (Mic)
Ø Data Glove
1. Keyboard Input Device
Ø Keys 101 to 108
Ø Founder Cristopher
Ø Type Based on text input
Types of keyboard Keys-
Ø Alphabet Key (A-Z, 26)
Ø Numeric Key (0-9, 10)
Ø Function Key (F1- F12, 12)
Ø Special Key (~`!@#$%^&*()_=?><)
Ø Character / Symbolic Key (+,-,*, /)
Ø Navigation / Arrow Key (4)
Types of keyboard Keys Based on working nature-
1. Toggle Key (ON/OFF)
Ø Caps lock
Ø Num Lock
Ø Scroll Lock
Ø Space bar
2. Combination Key
Ø Control (Ctrl)
Ø Shift
Ø Alternate (Alt)
Working of specific key-
Ø ESC- Escape key- Interrupt the work
Ø Enter- Data Process / Submit / line break / Return
Ø Window – Start Menu
Ø Tab- half inch space in a file, Go to next tab
Ø Control –
Ø Shift –
Ø Space bar- break word
Ø Prtsc- To print screen
Ø Delete-
Ø Home-
Ø End-
Ø PgUp-
Ø PgDn-
Ø
Working of Specific key-
F1-Help
F2-Rename
F3-Search
F4-Redo
F5-Refresh- DRAM, MS-Word-go to, PPT- Slide Show
F6-
F7-
F8-
F9-
F10-
F11-
F12-
2. Mouse- Pointing Devices / cursor control input Devices
Work- Selection of the option
Type of Mouse-
Ø Mechanical Mouse
Ø Optical Mouse
Ø Wireless / Bluetooth mouse
3.Scanner-Scaning input device
Work-
To scans a printed data and save into computer
Provide output by Change a Hard copy into a soft copy
Unit of picture quality measurement – dpi (dot per inch)
MICR-Magnetic Ink Character Recognition
Work- To identify a Printed MICR code on chaque in banking
BAR / BCR – Bar code reader / Optical Barcode Reader
Work – Read a product information like price in a shop / shopping MOL
Offline and online billing system
OCR – Optical Character Recognition
Input an optical character into digital format
Biometric – Online Verification
Scans Finger print / eye
QR – Quick Response reader
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