Computer Fundamental Miscellaneous - Study Mode

[#611] Communication ports are found on the back of microcomputers. They are used to connect the computer to _____
Correct Answer

(D) All of the above

Explanation

Solution: Communication ports are found on the back of microcomputers. They are used to connect the computer to printers, modems ,other hardware. Alternatively referred to as the com port, the communications port is serial communication used to connect devices, such as a modem.

[#612] Which is considered a direct entry input device?
Correct Answer

Optical scanner

Explanation

Solution: In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks and microphones.

[#613] In a computer system, which device is functionally opposite of a Key-board?
Correct Answer

(C) Printer

Explanation

Solution: Printer is functionally Opposite of a Keyboard. A keyboard is the most common input device that comprises a set of typewriter-like keys used to enter data into a computer. On the contrary, a printer is an output device capable of printing text and graphics on a paper.

[#614] The first firm to mass-market a microcomputer as a personal computer was
Correct Answer

(C) Radio Shack

Explanation

Solution: The first firm to mass-market a microcomputer as a personal computer was Radio Shaks.A small firm named MITS made the first personal computer, the Altair (now Apple Inc.), Apple II, the Tandy Radio Shack TRS-80, and the Commodore Business Machines Personal Electronic Transactor (PET).

[#615] The data appearing first in the left portion of punched card is
Correct Answer

(B) coded data

Explanation

Solution: IBM and other manufacturers used many different 80-column card character encodings. A 1969 American National Standard defined the punches for 128 characters and was named the Hollerith Punched Card Code (often referred to simply as Hollerith Card Code), honoring Hollerith.