GCSE Computer Science - Unit 4
(Computer Systems) Questions with
Verified Answers
Hardware - ANSWERSThe physical components of a computer.
software - ANSWERSthe programs and other operating information used by a
computer.
Central Processing Unit (CPU) - ANSWERSexecutes commands from a computer's
hardware and software; the principal computer chip that contains several processing
components, which determines the computer's operating speed; the "brain" of a
computer
hard disk drive (HDD) - ANSWERSA direct access storage device used to store and
retrieve data from rapidly rotating disks coated with magnetic material.
system software - ANSWERSsoftware responsible for the general operation of a
computer system, including the operation of hardware, running application software,
and file management
Application Software - ANSWERScomputer software created to allow the user to
perform a specific job or task
operating system - ANSWERSsystem software that acts as a "go-between", allowing
computer hardware and other software to communicate with each other
Graphical User Interface (GUI) - ANSWERSA visual display on a computer's screen that
allows you to interact with your computer more easily by clicking graphical elements.
Command Line Interface - ANSWERSa user types commands represented by short
keywords or abbreviations or presses special keys on the keyboard to enter data and
instructions
Processor Management - ANSWERSBreaks down the work into manageable chunks
and prioritizes them
Memory management - ANSWERSThe management of computer memory to ensure
that more than one program can run at the same time
