Which is considered a direct entry input device?
Which is considered a direct entry input device?
The correct option is D All of the above
Optical scanner,Mouse and digitozer and Light pen
are considered a direct entry input device.
Optical scanner, Computer input device that uses a
light beam to scan codes, text, or graphic images directly into a computer or
computer system. Bar-code scanners are used widely at point-of-sale terminals
in retail stores. A handheld scanner or bar-code pen is moved across the code,
or the code itself is moved by hand across a scanner built into a checkout
counter or other surface, and the computer stores or immediately processes the
data in the bar code. After identifying the product through its bar code, the
computer determines its price and feeds that information into the cash
register. Optical scanners are also used in fax machines and to input graphic
material directly into personal computers.
A digitizer tablet (also known as a digitizer or
graphics tablet) is a tool used to convert hand-drawn images into a format
suitable for computer processing. Images are usually drawn onto a flat surface
with a stylus and then appear on a computer monitor or screen.
A light pen is a computer input device in the form
of a light-sensitive wand used in conjunction with a computer's CRT display. It
allows the user to point to displayed objects or draw on the screen in a
similar way to a touchscreen but with greater positional accuracy.
Optical scanner,Mouse and digitozer and Light pen are considered a direct entry input device.
Optical scanner, Computer input device that uses a light beam to scan codes, text, or graphic images directly into a computer or computer system. Bar-code scanners are used widely at point-of-sale terminals in retail stores. A handheld scanner or bar-code pen is moved across the code, or the code itself is moved by hand across a scanner built into a checkout counter or other surface, and the computer stores or immediately processes the data in the bar code. After identifying the product through its bar code, the computer determines its price and feeds that information into the cash register. Optical scanners are also used in fax machines and to input graphic material directly into personal computers.
A digitizer tablet (also known as a digitizer or graphics tablet) is a tool used to convert hand-drawn images into a format suitable for computer processing. Images are usually drawn onto a flat surface with a stylus and then appear on a computer monitor or screen.
A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's CRT display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.
