COMPUTER STUDIES NOTES. PDF DOWNLOAD

Protected: COMPUTER STUDIES FORM NOTES AND SCHEMES OF WORK. This content is password protected. To view it please enter your password. BUSINESS STUDIES NOTES FORM · CHEMISTRY NOTES FORM · CHRISTIAN RELIGIOUS EDUCATION NOTES FORM COMPUTER STUDIES. An input device is. • any hardware device that sends data to the computer. • a device without which users can not interact with a computer. example: keyboard.


COMPUTER STUDIES NOTES. PDF DOWNLOAD

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COMPUTER STUDIES NOTES. PDF DOWNLOAD


INFORMATION TECHNOLOGY AND COMPUTER STUDIES NOTES FOR JSS1 TO SS3

When a device needs to transmit, it reserves the token for the next trip around, and then attaches its data packet to it. Advantage of Ring Topology 1.

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Very orderly network where every device has access to the token and the opportunity to transmit. Easier to Mange than a Bus Network 3.

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Good Communication over long distances 4. Handles high volume of traffic Disadvantages of Ring Topology 1. The failure of a single node of the network can cause the entire network to fail.

The movement or changes made to network nodes affects the performance of the entire network. Star Topology In a star network, each node file server, workstations, and peripherals is connected computer studies notes.

a central device called a hub. The hub takes a signal that comes from any node and passes it along to computer studies notes. the other nodes in the network.

COMPUTER STUDIES NOTES. PDF DOWNLOAD

Data on a star network passes through the hub, switch, or concentrator before continuing to its destination. The hub, switch, or concentrator manages and controls all functions of the network.

The star topology reduces the chance of network failure by connecting all of the systems computer studies notes. a central node. Advantages of Star Topology 2.

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Easier to expand than a bus or ring topology. Easy computer studies notes. install and wire. Easy to detect faults and to remove parts. Disadvantages of Star Topology 1. Requires more cable length than a linear topology. If the hub or concentrator fails, nodes attached are disabled.

More expensive because of the cost of the concentrators. Tree Topology A tree topology hierarchical topology can be viewed as a collection of star networks arranged in a hierarchy. This tree has individual peripheral computer studies notes. which are required to transmit to and receive from one other only and are not required to act as repeaters or regenerators.

The tree topology arranges links and nodes into distinct hierarchies in order to allow greater control and easier troubleshooting Advantages of a Tree Topology 1. Point-to-point wiring for individual segments. Supported computer studies notes. several hardware and software vendors.

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All the computers have access to the larger and their immediate networks. Disadvantages of a Tree Topology 1.

COMPUTER STUDIES NOTES. PDF DOWNLOAD

computer studies notes. Revised and expanded chapter on Trends in Computing, now consisting of clear coverage of all the six subtopics Computer Integrity and Security, Computer Ethics, Computers computer studies notes. Society, Emerging Technologies, Systems Analysis, and Computer professions as per the syllabus.

Updated chapter on Computer Communication and Networking andspecifically notes on classification of Wireless Transmission Media and technologies. Updated chapter on computer software, specifically improved notes on software suites. Updated notes on all practical topics Word, Excel, PowerPoint, Web design and databaseOffice procedures removed, replaced by Office and Even films that feature no explicit CGI are usually "filmed" now on digital camerasor edited or post-processed using a digital video editor.

Modern computers enable optimization of such designs as complete aircraft.



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