Marking on online test paper
it is for shire the PC Windows computer.
No. "Input" means getting data INTO the computer.
Yes it is. It reads the barcode, and converts it into a digital signal for the computer to decypher.
A bar code reader is an input Device. Although they sometimes output a visible light, the purpose is to gather data from a printed code and input that data into your system (computer, Point of Sale, etc.)
The four operations performed by a computer include processing, accepting input, output and storage. All of the operations of a computer occur in the CPU.
Scanners are input devices. They are taking data into a computer, like a photo or text or reading a barcode etc.
Input, process, output, and storage
input, output, program, action, response
There are for primary operations of the . The basic operations are input, processing, storage and output. There are other functions as well but most of them will fall under these categories.
A barcode wand is a handheld scanning device that is used to read barcodes by swiping the wand over the barcode. The wand typically connects to a computer or terminal to input the scanned barcode data. It is commonly used in retail and inventory management for quick and accurate scanning of barcodes.
The reader you are referring to is likely a barcode scanner. Barcode scanners use laser technology to read the black and white stripes (barcode) on food packages, which contain information such as product details, pricing, and inventory data. When scanned, this information is transmitted to a computer system for processing and tracking purposes.
The CPU of a computer is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system.