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CA IPCC : Question Paper (with Answers) - INFORMATION TECHNOLOGY & STRATEGIC MANAGEMENT Nov 2009

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CA IPCC
Tilak Vidyalaya Higher Secondary School (TVHSS), Kallidaikurichi
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PAPER 7 : INFORMATION TECHNOLOGY AND STRATEGIC MANAGEMENT Attempt all questions. Question 1 (a) Describe briefly the following terms: (i) LSI Circuit (ii) USB Connectors (iii) Touch Screen (iv) Layer 3 or Network Layer (v) Data Dictionary (5x1 = 5 Marks) (b) Explain each of the following: (i) BIOS (ii) Transaction Log (iii) Random Access (iv) FAT (v) E-mail (5x1 = 5 Marks) Answers (a) (i) LSI Circuit : LSI or Large Scale Integrated Circuits led to the development of the fourth generation computer. The LSI is a microchip containing thousands of small electronic components which function as a complete system. (ii) USB Connectors : USB stands for Universal Serial Bus. USB connectors provide the user with higher data transfer speeds for different USB devices like keyboard, mouse, scanner or digital camera. (iii) Touch Screen : Touch Screens are mainly used in Information providing systems like Railway Reservation counters, stock exchanges, hotels, restaurants etc. When an invisible infrared beam matrix crisscrossing the screen is pressed by finger over a function or program displayed on the screen, the infrared beam is broken at that intersection and the system is activated. The beam emanates from holes along the bottom and sides of the display unit. (iv) Layer 3 or Network Layer : Network Layer corresponds to the layer 3 of the OSI model and enables a choice of the physical route of transmission of a message packet by - creating a virtual circuit for upper layers to make them independent of data transmission and switching. establishing, maintaining, and terminating connections between the nodes. ensuring proper routing of data.

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