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QUESTION
(a) Using diagrams, describe the 2-tier and 3-tier architectures.
(b) What is a middleware? Explain the functions of a middleware. Give two examples of middleware.
(c) Explain the steps required to connect to an MS Access Database to query a particular table.
Ultrasonic Waves: Sound waves outside the audible range of humans. Ultrasonic waves consist of frequencies greater than 20 kHz and exist in excess of 25 MHz. Applications include i
code in c program
The system bus is a cable which carries data communication among the major components of the computer, as well as the microprocessor. Not all of the communication that uses the bus
what is the meaning of data definition
Subroutine and Functions: In a program, it is often necessary to repeat a statement or group of statements at several points to accomplish a particular task. Repeating the sa
There are two kinds of FCB, the normal, whose length is 37 bytes and the expanded one of 44 bytes. The FCB is created of data given by the programmer and by data which it takes dir
what is cpu
Internet searching algorithm: Searching: When a user enters a query into a search engine, the engine examines its index and provides a listing of best-matching web pages accordin
Computer Storage: Computer systems include two types of digital information storage: internal storage, within the CPU, and the backing (back up) storage on external devices su
Conditional statement: An If statement is composed of three parts. The first part should be keyword w.r.t language to convey to the computer that it is if statement. And a Bo
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