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Question 1:
(a) Describe the three ways of classification of Database management systems (DBMS).
(b) Why are System Analysts and Database Administrators needed in companies?
(c) One important function of DBMS is data integrity. Explain this function.
Question 2:
(a) Write short notes on web portal.
(b) Explain what is E-Commerce and how it has arisen in businesses from the traditional commerce like electronic data interchange (EDI).
Suppose there are exactly five packet switches (Figure 4) between a sending host and a receiving host connected by a virtual circuit line (shown as dotted line in figure 4). The tr
Mobile telephone networks started with analog technology. Analog cellular networks were known as first generation (1G) networks. Such networks had limited capacity, and were subjec
Output Devices: Each output unit of computer system transmits information from the CPU and converts the electrical pulses to an appropriate output form. A printer, for example
The difference between kernel mode and user mode gives a rudimentary form of security in the following manner. Convinced instructions could be executed only when the CPU is in kern
COMMUNICATION CHANNELS: A wire pair connecting two telephones is the simplest circuit, allowing communication in both directions. Other channels include coaxial cables, optica
Another way of classifying a computer system is based upon its size and capabilities: Microcomputers: Microcomputers are systems based on the use of microprocessors. A Micr
Environments We have seen that intelligent agents might take into account certain information when choosing a rational action, by including information from its sensor
what is the short and complete definition of computer
Problem 1 Perform the following conversion a. (ABE) 16 =() 2 b. (101011) 2 =() 10 2 Explain how full adder adds three bits 3 Explain digital multiplexers
how to set up the location (e.g. plaza, hall of fame, lecture theater or etc.) and services that will be used during the exhibition; devices needed; and finally produced a compreh
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