1 topic: living with a computer plan: Understanding of personal computer. Basic devices of a personal computer Additional devices of the personal computer

20 TOPICS WORLDWIDE NETWORK

• • Computer networks are networks with data transmission channels that effectively provide various information and computing services to users by providing convenient and reliable access to network resources.
• • Computer (eng. computer - calculator), EHM (Electronic Computing Machine) - an automatic device that works according to a previously given program (program). The same term as electronic calculator (EHM). However, in addition to performing computer calculations, its function is much wider. Integrated computer systems.
• A network is a combination of different devices and different programs.
• • A network is a combination of various devices and various programs.
• • Compatibility with each other (equipment with different technologies or operating systems of different types) remains one of the most important problems when networks are organized.
• • A computer network is a complex system that includes thousands of different components: computers of various types - from desktops to mainframes, system and application software, network adapters, concentrators, switches and routers, cables such as systems.
• A computing network is a complex set of software and hardware components that are interconnected and work together. To study the full functioning of the network, it is necessary to know the functioning of its individual constituents:
• A computing network is a complex set of software and hardware components that are interconnected and work together. To study the full functioning of the network, it is necessary to know the functioning of its individual constituents:

• Personal electronic computing machines (computers);

• • Personal electronic computing machines (computers);
• • Communication equipment;
• • Network operating systems;
• • Network components.
• The set of all hardware and software tools of the network is described using a multi-level model.
• The basis (base) of any network is the hardware layer of a computer platform standardized in some way. Currently, networks are widely and successfully using computers of various levels - from personal machines to mainframes and supercomputers. Naturally, the composition of computers in a computing network should ideally correspond to the work performed by the network.
• Connecting computers to a network allows you to solve the following problems:
• Connecting computers to a network allows you to solve the following problems:
• • use of data (for example, files);
• • use of hardware (for example, printers, modems);
• • use of software resources (for example, client-server programs);
• • development of a uniform security policy at network nodes (for example, creation of workstation security on a server connected to the Internet in a local network);
• • limiting the powers of network nodes (for example, the distribution of powers between divisions of the enterprise);
• • production of user data protection (for example, taking a backup copy from the server);
• • development of information exchange between network nodes (for example, when using e-mail);
• Application of computer networks:
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• file.txt
• • Split files
• • Allocation of resources
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• Internet
• Application of computer networks:
• • Separation of programs
• • Client-server applications
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• MSOffice
• MSOffice
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• MSOffice
• MSOffice
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• App
• Printer driver
• Local printer queue
• Press the server
• output queue
• Printer queue
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• Print server

Thank you for your attention

2023