The system is a collective effort of several integrated components that work for some common purposes.
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The components of computer systems are as follows: - 1. Hardware, 2. Software, 3 Humanware or user, 4. Data or information. All the machines, parts, and devices of the hardware computer are called hardware. Computer hardware can be initially divided into three groups. Input Tools: 1. Keyboard, 2 Mouse, 3 Disc, 4 Scanner, 5 Card Reader, 6. Digital camera etc. System unit: 1. Hard disk, 2 Motherboard, 3 AGP card etc. Output Equipment: 1. Monitor, 2 Printer, 3 Disc, 4 Speaker etc. To solve the problem of software or to execute the program, in the computer language, the sequence of instructions is programmed. Programs or program sets that make hardware efficient by creating relationships between computer hardware and user, are software by itself. Computer software can be divided into two main categories. System software: System software helps keep the computer's capability in execution of practical programs by coordinating the work in different units of the computer. Application software: Application software used to solve practical problems or data processing is called application software. A variety of ready-made programs are available as commercial products to solve practical problems, which are usually called package programs. Humanware or human data collection, program or data is collected and tested, written on computers, writing programs, designing and recording systems, and coordinating between storage, software and hardware etc. All people involved in the work together are called Humanware. The data / information information or the smallest unit of information is called data. Data is not sorted by some rough fact data - (a) numeric data or numerical data For example, 25,100,456 and so on. (B) Non-numeric data For example, names, livelihoods, nations or photos, words and dates of people, country etc. Operating system operating system is a software that controls the computer program execution and which performs scheduling, debugging, input / output control, accounting, compilation, storage assignment, data management and related tasks. Currently, most of the operating systems are in DOS, Windows 95, Windows 98, Windows 2000, UNIX, Ubuntu, Mint (operating system), MANDRIVA, Debian, Fedora, Mac OSX, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Linux Source: https://bn.wikipedia.org/wiki/ Computer
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