Thursday, March 24, 2011
Tuesday, May 5, 2009
Input Devices
1: Input Devices:
Input means giving data in computer. Input devices are devices used to input data. Some input devices are keyboard, Mouse, Digital Camera, Scanner etc
Keyboard
Keyboard consists on buttons called keys used to give textual (a – z) numeric (0 – 9) and special character data (, : < > etc) in computer. A standard keyboard consists on 4 types of keys.
a. Numeric Key b. Alphbatic / Alphanumaric keys
c. Navigation Key d. Function Key
Mouse
A mouse is and input device which is used just to pointing and select items on the screen. Laptop computers offer another alternative, the touchpad-a pressure-sensitive surface built into the keyboard console. It lets you more your cursor by tracing your finger on the touchpad itself.
Scanner
The scanner works like a copy machine. It captures a whole page and converts it to digital image. The scanned text cannot be edited at this point.
Camera
Camera is used to give live picture and videos in computer. It may be a digital one or VCR (Video Camera Recorder).
Mic
Mic is an input device used to just give / record / input sound in the computer.
Barcode Reader
An input device used to read and input barcode data in computer. This data will be further processed to calculate or output the actual information.
Input means giving data in computer. Input devices are devices used to input data. Some input devices are keyboard, Mouse, Digital Camera, Scanner etc
Keyboard
Keyboard consists on buttons called keys used to give textual (a – z) numeric (0 – 9) and special character data (, : < > etc) in computer. A standard keyboard consists on 4 types of keys.
a. Numeric Key b. Alphbatic / Alphanumaric keys
c. Navigation Key d. Function Key
Mouse
A mouse is and input device which is used just to pointing and select items on the screen. Laptop computers offer another alternative, the touchpad-a pressure-sensitive surface built into the keyboard console. It lets you more your cursor by tracing your finger on the touchpad itself.
Scanner
The scanner works like a copy machine. It captures a whole page and converts it to digital image. The scanned text cannot be edited at this point.
Camera
Camera is used to give live picture and videos in computer. It may be a digital one or VCR (Video Camera Recorder).
Mic
Mic is an input device used to just give / record / input sound in the computer.
Barcode Reader
An input device used to read and input barcode data in computer. This data will be further processed to calculate or output the actual information.
Hardware & Software
Hardware:
Hardware is known as physical parts of computer. All the tangible (which one can touch and see) devices such as key board, mouse, monitor, CPU etc.
Software:
Software is a set of instructions given to computer for performing any specific tasks. These are programs that order hardware to do specific work. For example typing tutor, windows, MS word, etc.
Types of Hardwares
We divided computer hardware in further 4 groups.
1. Input Devices
2. Processing Device
3. Storage Devices
4. Output Devices.
Hardware is known as physical parts of computer. All the tangible (which one can touch and see) devices such as key board, mouse, monitor, CPU etc.
Software:
Software is a set of instructions given to computer for performing any specific tasks. These are programs that order hardware to do specific work. For example typing tutor, windows, MS word, etc.
Types of Hardwares
We divided computer hardware in further 4 groups.
1. Input Devices
2. Processing Device
3. Storage Devices
4. Output Devices.
Subscribe to:
Posts (Atom)