1. Computers are often used because they are able to hold lots of data in a very small space. They can work quickly and are much better at completing many tasks because of their speed and efficiency.
2. The action processing of data produces information that can be displayed or stored for future use.
3. Two internal components that are necessary for the computer to function are the CPU
(Central Processing Unit) and the RAM (Random Access Memory).
4. The external components of a computer are known as peripherals.
5. Components: CPU, RAM, Motherboard Peripherals: Keyboard, Mouse, Printers, Speakers
6. A CPU (Central Processing Unit) contains an ALU (Arithmetic Logic Unit), control unit, and registers.
7. A processor with two cores is called a dual-core processor and four cores is called a quad-core processor.
8. The control unit determines the sequence in which instructions are executed.
9. The control unit is primarily responsible for movement of data and instructions from itself to the ALU and registers and back.
10. The program counter holds the address of the instruction being processed at the time and the instruction register holds the instruction itself.