IT Basic

Computer Organization and Architecture -2

Give the details of data types specified for VAX & IBM 370 machines. Integer An XDR signed integer is a 32-bit datum that encodes an integer in the range [-2147483648,2147483647]. The integer is represented in two’s complement notation. The most and least significant bytes are 0 and 3, respectively. Integers Read more…

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IT Basic

Computer Organization and Architecture

Convert the following decimal numbers to binary: a. 1231 =1,0,0,1,1,0,0,1,1,1,1 b. 673 =1,0,1,0,1,0,0,0,0,1 c.1998 =1,1,1,1,1,0,0,1,1,1,0 Give and explain one stage of logic circuit. In many computers only four: AND, OR, XOR (exclusive OR) and complement micro-operations are implemented. Other 12 micro- operations can be derived from these four micro-operations. Figure Read more…

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IT Basic

C Programming and Data Structures part-1

Differentiate string type and character type constants. Individual character constants are represented by single-quotes, e.g. ‘A’, and have type int (in C++ char). The difference is that “A” represents a pointer to the first element of a null-terminated array, whereas ‘A’ directly represents the code value (65 if ASCII is Read more…

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IT Basic

Database Management System part-2

1. Explain the statement that relational algebra operators can be composed. Why the ability to compose operators is important? The Relational Algebra consists of a set of basic operators that take relations as their operands and return the result as a relation. This means that operators can be composed – Read more…

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IT Basic

Database Management System Part-1

What are the representative applications of Databases? List them. A collection of programs that enables you to store, modify, and extract information from a database. There are many different types of DBMSs, ranging from small systems that run on personal computers to huge systems that run on mainframes. The following Read more…

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IT Basic

Logic Design Part-2

1. How timing sequences can be generated using shift registers? A shift register is a register in which the contents may be shifted one or more places to the left or right. This type of register is capable of performing a variety of functions. It may be used for serial-to-parallel Read more…

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IT Basic

Logic Design Part-1

1. Convert the following binary numbers to base 10. a. 10101101 = 173 b. 110110.1 = 54.1 2. How AND gate can be realized using NOR gate? The NOR gate can also be classed as a “Universal” type gate. NOR gates can be used to produce any other type of Read more…

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IT Basic

Fundamentals of Information Technology Part-1

1. What is the role of fifth generation computers? The Fifth Generation Computer Systems project (FGCS) was an initiative by Japan’s Ministry of International Trade and Industry, begun in 1982, to create a “fifth generation computer” which was supposed to perform much calculation using massive parallel processing. It was to Read more…

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