Informatics Practices · Ch 1 — Computer System
Summary
Summary
- A computing device, also referred to as a computer, processes the input data as per given instructions to generate the desired output.
- A computer processes data to generate information, whose further analysis and interpretation yields knowledge.
- A computer system has four physical components: (i) CPU, (ii) primary memory, (iii) input device, and (iv) output device. They are referred to as the hardware of the computer.
- A computer system has two types of primary memory: (i) RAM, the volatile memory, and (ii) ROM, the non-volatile memory.
- Software is a set of instructions written to achieve a desired task, and is mainly categorised as system software, programming tools, and application software.
- Hardware of a computer cannot function on its own — it needs software to be operational. …