question What is the function of a barcode scanner in a retail environment

Computer Fundamentals

What is the function of a barcode scanner in a retail environment?

A. Process credit card transactions
B. Display product information
C. Capture and decode barcode data
D. Manage inventory databases

Barcode scanners capture and decode data from barcodes for various purposes, such as inventory management.

What is the purpose of the CTRL + C keyboard shortcut?

A. Copy selected text or item
B. Cut selected text or item
C. Paste copied text or item
D. Undo the last action

What is the main function of the BIOS in a computer system?

A. Manage memory
B. Boot the operating system
C. Run applications
D. Connect to the internet

What is the purpose of a compiler in the context of programming languages?

A. Convert high-level code to machine code
B. Debug code
C. Run applications
D. Connect to the internet

What is the primary function of a cache memory in a computer system?

A. Store data permanently
B. Provide additional storage space
C. Speed up data access by storing frequently used data
D. Manage network connections

Which type of software provides a user interface for interacting with the computer?

A. System software
B. Application software
C. Firmware
D. Middleware

What is the purpose of a network router?

A. Display web pages
B. Connect devices within a LAN
C. Block unauthorized access
D. Manage file storage

What does DNS stand for in networking?

A. Domain Name System
B. Dynamic Network Server
C. Digital Network Security
D. Data Network Service

What is the purpose of a cache memory in a computer?

A. Store data permanently
B. Provide additional storage space
C. Speed up data access by storing frequently used data
D. Manage network connections

Which of the following is a volatile storage device?

A. Hard Disk Drive
B. SSD
C. Flash Drive
D. Magnetic Tape

What is the purpose of the CTRL + Z keyboard shortcut?

A. Cut the selected text
B. Paste the copied text
C. Undo the last action
D. Redo the last action