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What is a macro ? How it is defined ?
Preprocessor' is a translation phase that is applied to source code before the compiler proper gets its hands on it. Generally, the preprocessor performs textual substitutions on source code. Macro is a type of preprocessor which replaces instances of one piece of text with another. A preprocessor line of the form
#define name text
Q. Define Digital computers system? Digital computers, in general, are automatic machines that accept data and instructions, perform predefined operations very quickly on the d
Differentiate between asynchronous and synchronous types of serial communication. Serial data communication uses two fundamental types, asynchronous andsynchronous. With synchr
Q. Describe the External Users of system? External Users: Modern information systems are now reaching beyond the boundaries of traditional business to involve customers and o
What are primary keys and foreign keys? Primary keys are the unique identifiers for every row. They must have unique values and cannot be null. Due to their significance in rel
Functions carried out by different operating systems The below is a list of functions carried out by different operating systems: - Provides a user interface - Device man
Explain the concept of variable-partition contiguous storage allocation. Suppose that we have 1024K main memory available in that 128K is occupied through operating system pro
What are the primary models of Supply Chain Management? Two Primary models of Supply Chain Management are illustrated below: a. Porter’s Value Chain Model and b. Supply
What is a co-processor? What is its use in a typical microprocessor based system. 8087 NDP (numerical data processor) is also called math co-processor which is used in parallel
What are the types of security features employed in client server kinds of network? Security features employed in Client-Server types of network are as illustrated below: a)
A disk drive with removable disks is known as removable drive. A removable disk can be replaced by other similar disk on same or different computer so providing huge data storage w
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