PSU CS 101 MOCK EXAM AND STUDY MATERIAL WITH CODING EXERCISES AND COMPUTATIONAL THINKING SCENARIOS.pdf

PSU CS 101 MOCK EXAM AND STUDY
MATERIAL WITH CODING EXERCISES AND
COMPUTATIONAL THINKING SCENARIOS

◉ Program.
Answer: set of instructions that a computer follows to perform a
task. commonly referred to as Software


◉ Programmer.
Answer: A person who can design, create, and test computer
programs. Also known as a software developer


◉ Hardware.
Answer: The physical devices that make up a computer


◉ Typical major components of a computer.
Answer: central processing unit (CPU), main memory (RAM),
secondary storage devices, input/output devices, clock


◉ Input.
Answer: data the computer collects from people and other devices

, ◉ Output.
Answer: data produced by the computer for other people or devices


◉ Central Processing Unit (CPU).
Answer: the part of the computer that actually runs programs


◉ Microprocessors.
Answer: CPUs located on small chips


◉ Main Memory (RAM).
Answer: where computer stores a program while program is
running, and date used by the program


◉ Secondary Storage Devices.
Answer: can hold data for long periods of time


◉ Volatile Memory.
Answer: Temporary storage: information is lost when power is
turned off (RAM)


◉ Non-volatile Memory.