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In using COBOL on PC we have only flat files and the programs can access only limited storage, while in VS COBOL II on M/F the programs can access up to 16MB or 2GB depending on the addressing and can use VSAM files to make I/O operations faster.
Six machines H1, H2, ..., H6 are linked by two Ethernet switches SW1 and SW2 as given below. Both switches have four ports drawn. The port numbers are as indicated. Suppose the two
Define Mapping and List mapping procedure? The transformation of data from main memory to cache memory is known as an Mapping. Associative mapping Direct mapping
what is computer
Explain Recursive Descent Parsing It is a top down parsing with no backtracking. This parsing method uses a set of recursive processes to perform parsing. Most important advant
Closed System: It's isolated from environment influences. It operates on factors within System itself. It is also described as a System which involves a feedback loop, a control e
Use of Hypertext links in Internet access From the user's point of view, the Web having of a vast, worldwide collection of documents i.e. pages. Every page may have links (poin
What is the significance of the memory table 'SCREEN'? At runtime, attributes for every screen field are stored in the memory table called 'SCREEN'. We need not declare this
What is an I/O channel? An I/O channel is actually a special purpose processor, also known as peripheral processor. The main processor initiates a transfer by passing the need
Extranets can be also used to connect an intranet to Internet so that remote offsite access can be made in a company's intranet by an authorized individual. This can facilitate thr
General Concepts of links and association A link is a conceptual or physical connection among objects for instance. Mathematically, you can define a link as a tuple which is a
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