Computer Fundamentals

A computer is an electronic device

A computer is an electronic device that performs four main functions: (1) Receives input from input devices like keyboard and mouse, (2) Processes inf

Input devices are hardware components used

Input devices are hardware components used to accept data and instructions from users. Common input devices include: Keyboard (QWERTY with 104 keys),

The CPU is the 'Brain

The CPU is the 'Brain of the Computer' that controls and executes all instructions. It has three main components: (1) Control Unit (CU) - manages and

Output devices display or communicate results

Output devices display or communicate results from the CPU to users. Main output devices include: Monitor/Visual Display Unit (displays soft copy of d

Primary memory is directly accessible by

Primary memory is directly accessible by CPU and includes: (1) RAM (Random Access Memory) - volatile memory allowing random access to any location, us