A Computer system is a combination of hardware and software.
A Computer is an electronic device, operating under the control of instructions stored in its own memory, that can accept data (input), process the data according to specified rules (process), produce results (output), and store the results (storage) for future use.
Generations of computer
- First generation (1940 to 1956): Using vacuum tubes
- Second generation (1956 to 1963): Using transistors
- Third generation (1964 to 1971): Using integrated circuits
- Fourth generation (1971 to present): Using microprocessors
- Fifth generation (present and next): Using artificial intelligence
Hardware: electronic and mechanical equipment in a computer is called the hardware.
System Unit The container for the motherboard, disk drives etc.
- Monitor The main output device for the system.
- Keyboard The main input device for the system
- Mouse An input device allowing interaction with the system using pointing and clicking
- Speakers Used to output sounds and music from the system
- Motherboard
- Hard disk
- RAM
- Power supply
- Processor
- Case
- Monitor
- Keyboard
- Mouse
Software: computer programs that perform tasks on a computer system.
There are many OSs on the market
- Microsoft Windows 11
- Microsoft Windows 10 Professional
- Microsoft Windows home
- Microsoft Windows8
- Microsoft Windows7
- Microsoft Windows XP,
- Microsoft Windows Vista,
- Microsoft Windows server 2022
- Microsoft Windows server2019
- Microsoft Windows server 2016
- Microsoft Windows server 2012
- Apple Mac OS Big Sur version 11
- Apple Mac OS Monterey
- Apple Mac OS Catalina
- Apple Mac OS High Sierra
- Apple Mac OS Mojave
- Apple Mac OS Sierra
- Unix Linux.