Computer Science

The Data Bus is responsible for transferring actual data between the CPU and memory. The Address Bus carries the address of the memory location, and the Control Bus carries control signals, but data transfer specifically occurs over the Data Bus.

Laser printer speed is typically measured in pages per minute (ppm), indicating how many pages the printer can produce in one minute. This is the standard metric used to compare printer speeds.

In computer architecture, common types of buses include the data bus, control bus, and address bus, which are used for data transfer, control signals, and addressing memory locations respectively. A power bus is not considered a type of bus for data or control signals within the computer system.

The data bus is specifically used to transfer data internally within a computer between components. The address bus carries memory addresses, and the control bus carries control signals, so they do not transfer data itself.

The Data Bus is responsible for carrying the actual data being transferred between components in a computer system. The Address Bus carries address information, the Control Bus carries control signals, and Serial Bus refers to a type of data transmission, not a specific bus carrying data between components.

USB (Universal Serial Bus) is designed for short-distance data transfer, typically within a few meters, such as connecting peripherals to a computer. It is not suitable for long-distance or internet data transfer.

A virtual printer is a type of computer software that mimics the interface and API of a physical printer driver, allowing applications to 'print' to a file or another output format instead of paper. This matches the description given, making option A correct.

In computer architecture, a bus is a communication system that transfers data, addresses, and control signals between components of a computer. It is not a CPU, storage device, or memory type.

A 191 Dot Matrix refers to a type of printer that uses a matrix of dots to form characters and images on paper, making it a printer rather than a storage device or slot.

The printing speed of a line printer is typically measured in lines per minute because it prints an entire line of text at once, making this the most relevant metric for its speed.