IBPS Specialist Officer Computer Capsule - 2017-2018 StudyChaCha

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Old November 13th, 2017, 05:26 PM
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Default IBPS Specialist Officer Computer Capsule

I am preparing for IBPS Specialist Officer Exam. I have completed English Language and Quantitative Aptitude Section. I will start preparation for Computer Knowledge section. So tell me from where I can get Capsule for Computer Knowledge section of IBPS Specialist Officer Exam?
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Old November 14th, 2017, 11:17 AM
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Default Re: IBPS Specialist Officer Computer Capsule

as you want capsule for Computer Knowledge section for IBPS Specialist Officer Exam, so here I am providing Computer Knowledge Capsule:

IBPS Specialist Officer Exam Computer Knowledge Capsule

COMPUTER NETWORKS

System of interconnected computers and computerized peripherals such as printers is called computer network .This interconnection among computers facilitates information sharing among them. Computers may connect to each other by either wired or wireless media.

Characteristics of a Network-
A network is a group of systems that are connected to allow sharing of resources—such as files or printers—or sharing of services-such as an Internet connection .There are two aspects of setting up a network: the hardware used to connect the systems together and the software installed on the computers to allow them to communicate.

Servers-
The server is a special computer that contains more disk space and memory than are found on client workstations. The server has special software installed that allows it to function as a server. This special software can provide file and print services (to allow sharing of files and printers), provide web pages to clients, or provide e-mail functionality to the company.

Workstations -
The workstation also is known as a client, which is just a basic computer running a client operating system such as Windows XP or Linux. These users typically store their files on a central server so that they can share the files with other users on the network.

Hosts-
The term host refers to any computer or device that is connected to a network and sends or receives information on that network. A host can be a server, a workstation, a printer with its own network card, or a device such as a router. We can summarize by saying that any system or device that is connected to the network is known as a host.

Types of Networks-
Organizations of different sizes, structures, and budgets need different types of networks. Networks can be divided into one of two categories: peer-to-peer or server-based networks.

1. Peer-to-Peer Network
2. Server-Based Networks

Peer-to-Peer Network-
A peer-to-peer network has no dedicated servers instead; a number of workstations are connected together for the purpose of sharing information or devices. When there is no dedicated server, all workstations are considered equal; any one of them can participate as the client or the server. Peer-to-peer networks are designed to satisfy the networking needs of home networks or of small companies that do not want to spend a lot of money on a dedicated server but still want to have the Capability to share information or devices. For example, A small peer-to-peer network will allow these three computers to share the printer and the customer information with one another .The extra cost of a server was not incurred because the existing client systems were networked together to create the peer-to-peer network. A big disadvantage of peer-to-peer networking is that you can’t do your day-today administration in a single place.

Server-Based Networks-
Usually after four or five systems have been networked, the need for a dedicated server to store all of the user accounts and data files becomes apparent—this is a server-based network. The advantage of a server-based network is that the data files that will be used by all of the users are stored on the one server. This will help you by giving you a central point to set up permissions on the data files, and it will give you a central point from which to back up all of the data in case data loss should occur. With a server-based network, the network server stores a list of users who may use network resources and usually holds the resources as well. The server in a server-based network may provide a number of different services. The services it will offer to the network usually are decided by the server’s role. There are a number of different roles that a server could play on a network:
File and print servers 2. Application servers 3. Web servers 4. Directory servers
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