Computer Science Questions and Answers
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
Which process is used by large retailers to study trends?
Data mining
Data selection
Data conversion
Pos
Correct answer is A
Data mining is used to study trends by large retailers
Which of the following is not a stage of system development cycle?
Design
Test running
Implementation
Observation
Correct answer is D
Observation isn't a stage of system development cycle
Data path
Controller
Registers
Cache
Correct answer is A
The data path contains all hardware necessary to perform every operation. A controller tells the data path what needs to be done
Computers are used majorly at offices for ____________
Recreational purposes
Research purposes
Storage purpose
Security purposes
Correct answer is C
In offices, computers are majorly used to store files and other confidential
Which computer accessory is both an input and output device?
Monitor
Printer
Network cards
Scanner
Correct answer is D
Devices for communication between computers, such as modems and network cards, typically perform both input and output operations