1.3 Basics of Computing and Processing Flashcards
How is computer data defined?
Information shared in an IT system using nothing more complicated than the binary digits 1 and 0.
When a computer writes data to memory and manipulates that data, the computer is said to be doing what?
The computer is using the CPU to act on instructions from the operation system and the application software.
Why do computers save or write data to a storage device?
Data running on system memory is only preserved while the computer is powered up.
How does a user receive information from a computer?
Data is shown or displayed to the user through an output device.
What is the most common use for peripheral devices in a computer?
To enter information as input or deliver to the user as an output.
How does a computer receive data entered by a user?
Through the use of peripheral devices, such as mice and keyboards.
What three elements are required for a computer to perform useful tasks?
Hardware, Software, and the computer user.
What is the difference between hardware and software?
Software refers to a collection of data or computer instructions that tell the computer how to work. Hardware is the set of physical components that make up the system and perform the work.
What are peripheral devices?
The parts of a computer system that are not contained within the case.
What systems use a Central Processing Unit (CPU) and memory?
All types of computers.
