Input/Output Devices

1. Webcam

- This device uses for capturing the real time image, and it connects to computer.

Examples of Primary storage devices

A. RAM B. Cache Memory

Sound Cards

Example for Audio Output devices are: - (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs.

Microprocessors

Microprocessor is logically integrated chip that processed all logical instructions and produce the output.

Plotter

This computer hardware device is used for producing the vector graphic output.

Network Card

help to connect multiple computer and other devices of computer.

Mother board

is the heart of the computer, because all processor and other components are connected with the motherboard.

Examples of Secondary storage devices

1. Floppy diskette 2. Hard drive 3. Magnetic strip 4. Super Disk 5. Tape cassette 6. Zip diskette 7. Blu-ray disc 8. CD-ROM disc 9. CD-R 10. CD-RW disc 11. DVD-R 12. DVD+R 13. DVD-RW 14. USB flash drive and jump drive 15. CF (CompactFlash) 16. Punch card 17. M.2 18. Memory card 19. MMC 20. NVMe 21. SDHC Card 22. Smart Media Card 23. Sony Memory Stick 24. SD card 25. SSD 26. xD-Picture Card 27. Cloud storage 28. Network media 29. OMR

There are many Examples of Output Devices of a Computer like are:

1. Monitor 2. Printer 3. Projector 4. GPS 5. Braille Reader 6. Plotter

Examples of Visual and Imaging Devices

1. Webcam 2. Digital Camera 3. Digital Camcorder 4. Barcode Reader

Processing device examples are:

1.Microprocessors 2. GPU 3. CPU 4. Mother board 5. Network Card 6. Sound Card 7. Video Card

Bluetooth Peripheral: Some devices connect to computer with Bluetooth mean wireless technology.

A. Keyboard B. Mouse C. Headset D. Gamepad

Onboard Audio

Alternatively referred to as integrated, onboard is a term used to describe a hardware component embedded into a circuit board. With a computer, onboard. Often refers to a device, like a sound card, network card, GPU (graphics processing unit), or WLAN, integrated onto 1he motherboard. Unlike expansion cards, users cannot remove these components from their computer. However, they can be disabled through software or CMOS setup or are automatically disabled when an expansion card is added to the computer.

Sound Card

Execute the voice instructions and arise the output in the sound form.

Projector

For projecting the computer screen data On the surface object such as wall or white board.

GPU

Graphics processing unit is also a processor that is designed for rendering the videos and images with good quality.

Printer

Monitors use to showing the output in the visual shape, which is soft form.

Example for Audio Output devices are:

Sound Cards Speakers Headphone Onboard Audio

Visual and Imaging Devices

Such components help to provide input to computer in the form of images and visual.

CPU

The CPU (Central Processing Unit or processor) is responsible for processing all information from programs run by your computer. The 'clock speed', or the speed at which the processor processes information, is measured in gigahertz (GHz). This means that a processor advertising a high GHz rating will likely perform faster than a similarly specified processor of the same brand and age. CPU can execute all instruction such as logically, arithmetically, and I/O operation which are given by users.

Memory/Storage Devices

The core task of the memory is storage and retrieval In using storage devices, all data files and objects can be sorted, porting, and extracting. The information can be stored in temporarily and permanently. These devices are may be internal or external.

Function of Memory/Storage Devices

The prime functions of memory and storage devices are storing all data in temporary and permanent nature. If we want to store data for long time. then can be used the permanent storage devices such as hard disk etc.

Braille Reader

These devices are designed for blind person, because Braille reader retrieves all output from computer which readable for blind

Microphone

This device able to convert sound waves into electrical waves.

MIDI keyboard

This device looks like as piano that is connect to computer via USB cable.

Video Card-

Use to process the all video instructions, and yield the good quality video.

Digital Camera

able to store all images and videos store in digital form

4. Barcode Reader

also called a price scanner or point-of-sale (POS) scanner, is a hand-held or stationary input device used to capture and read information contained in a bar code • Barcode reader consists of a scanner, a decoder (either built-in or external), and a cable used to connect the reader with a computer. • Merely captures and translates the barcode into numbers and/or letters, the data must be sent to a computer so that a software application can make sense of the data. • Barcode scanners can be connected to a computer through a serial port, keyboard port, or an interface device called a wedge • Barcode reader works by directing a beam of light across the bar code and measuring the amount of light that is reflected back. • The dark bars on a barcode reflect less light than the white spaces between them. • The scanner converts the light energy into electrical energy, which is then converted into data by the decoder and forwarded to a computer.

Headphone

are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound.

Primary storage devices

are designed for temporarily storage, but fastest to storage devices and small size as well.

Speakers

are transducers that convert electromagnetic waves into sound waves. The speakers receive audio input from a device such as a Computer or an audio receiver. This input may be either in analog or digital form

Audio Output Devices

audio output device is a device that turns the soundwaves data that a computer generates into usable sound signals.

GPS

device take all the information from GPS controller such as location and weather conditions and releases the accurate output.

3. Digital Camcorder

devices are able to record all video into real-motion.

Cache memory

is an extremely fast memory type that acts as a buffer between RAM and the CPU. It holds frequently requested data and instructions so that they are immediately available to the CPU when needed. It is used to reduce the average time to access data from the Main memory.

Processing Devices-

is any device in a computer that handles the intermediate stage of processing the incoming data. When a computer receives data from an input device. for example, the mouse or keyboard. the data must be processed before it can go to an output device, such as the printer or monitor. A processing device is responsible for converting that data into useful information.

Output devices

is any peripheral that receives data mom a computer, usually for display, projection, or physical reproduction. For example, the image shows an inkjet printer, an output device that make a hard copy of anything shown on the monitor. Monitors and printers are two of the most commonly used output devices used with a computer.

RAM

is volatile storage memory. RAM gives applications a place to store and access data on a short-term basis. It stores the information your computer is actively using so that it can be accessed quickly.

There are live basic kinds of barcode readers

pen wands, slot scanners, Charge-Couple Device (CCD) scanners, image scanners, and laser scanners.

Monitor

use for showing 1he output in the visual shape, which is soft form.

Secondary storage devices

used for the permanently storage of data, because if further time require any data then can be retrieved easily. The sizes of these components have large compare to primary storage devices, and storage capacity much high also.

input device

user can send audio instructions to computer for different tasks such as processing, recording, and more. Many audio input devices work with speech recognition programs because this software helps to translate spoken words into text document.

A laser scanner

• either hand-held or stationary, does not have to be close to the bar code in order to do its job. It uses a system of mirrors and lenses to allow the scanner to read the bar code regardless of orientation and can easily read a bar code up to 24 inches away. To reduce the possibility of errors, a laser scanning may perform up to 500 scans per second. Specialized long- range laser scanners are capable of reading a barcode up to 30 feet away.

A CCD scanner

• has a belter read-range than the pen wand and is often used in retail sales. Typically, a CCD scanner has a "gun" type interface and has tD be held no mDre than One inch from the bar code. Each time the bar code is scanned, several readings are taken to reduce the possibility DI errors. A disadvantage of the CCD scanner is that it cannot read a bar code that is wider than its input face.

A pen wand

• is the simplest barcode reader. It contains no moving pass and is known for its durability and low cost. A pen wand can present a challenge to the user, however, because it has to remain in direct contact with the bar code, must be held at a certain angle, and has to be moved over the bar code at a certain speed.

A slot scanner

•remains stationary and the item with the barcode on it is pulled by hand through the slot. Slot scanners are typically used to scan bar codes on identification cards.

An image scanner, also called a camera reader

•uses a small video camera to capture an image of the bar code and then uses sophisticated digital image processing techniques to decode the bar code. It can read a bar code from about 3 1o 9 inches away and generally costs less than a laser scanner.