Computer Studies Made Simple : Source Data Entry Devices

Source Data Entry Devices

These devices are used for direct entry data into the computer system.

They provide a quick and efficient method of inputting data

Examples of Source Data Entry Devices include:

A.      Scanning Devices

B.      Audio Video Devices

A.Scanning Devices:

These include:

1.Barcode Reader

2.Fax machine (Facsimile)

3.Mark and character Recognition Devices such as:

Smart cards

Magnetic strips

Optical Mark Recognition

Magnetic Ink Character Recognition Reader

4.Imaging Systems.

B.Audio / Visual Devices :

1.Audio Input Devices

2.Video Input Devices

3.Didgital Camera

Bar codes:

Barcode represents data printed as vertical lines.

They are specific for a manufacturer or company.

The bar code reader emits a laser beam that can read the bar code and convert it into digital signals that are 

processed by a computer to identify the specific code for a company and canbe also used in superstores or 

markets to generate bills and keep a record of sold items by the proprieter