computer system

4. any auxiliary device that can communicate and work with a computer. For example: input/output devices, printers, etc. A peripheral device extends the capabilities of the computer system it is connected to. The peripheral is not a core, essential, part of the computer.
5. A series of instructions that can be understood by a CPU. These instructions guide the CPU to perform specific operations. Software is comprised of both programs and data.
8. a device that usually consists of a keyboard, a monitor, and a network card that is connected to a server or a powerful computer. Dumb terminals depend entirely on the computer to which they are connected for computations, data processing and data management.
10. it is a networking device that accepts incoming quanta of information (data packets), reads their destination address and distributes them across networks, according to a routing table or routing policy (policy based routing). A router identifies the destination of messages and sends them via an appropriate route and is used to forward data packets between networks
11. a relatively low performance terminal, which heavily but not entirely, depends on the server to which it is connected.

1. The physical elements of a computer, e.g. screen, CPU etc.
2. A set of computer systems that are interconnected and share resources, as well as data. For example: Local Area Network, Wide Area Network, etc
3. it may be a program or a computer that provides services requested by clients connected over a network
6. People who are used or could be used in an organization, business or economy.
7. it receives data via the network
9. it is the equivalent of a post office that manages the flow of email in and out of the network, checks that an email address is valid, allows users to access their email, etc.