The device primarily used to provide hardcopy is the?
printer
card reader
computer console
CRT
Correct answer is A
Printer is an output device that is primarily used to provide hardcopy in the form of paper
A light sensitive device that converts drawing, printed text or other images into digital form is
keyboard
Plotter
Scanner
OMR
Correct answer is C
A scanner converts hard copy of data and other information to soft copy, by serving as an input device that supplies the computer the information or data contained in the hard copy
Application software
Internet
Operating system
Control unit
Correct answer is C
An Operating System (OS) is a software that acts as an interface between computer hardware components and the user
Syntax
Instruction
Program
Domain
Correct answer is A
In computer science, the syntax of a computer language is the set of rules that defines the combinations of symbols that are considered to be correctly structured statements or expressions in that language
Which of the following is termed as the minimum error code?
binary code
gray code
excess 3 code
octal code
Correct answer is B
Gray code is considered minimum error code because they are less error prone for mechanical devices that involve making and breaking electrical circuits because they only change in one bit position at a time