What is cache memory?

What will be an ideal response?


Cache memory is derived from the French word for hidden and is a form of very fast memory that shadows
main memory. However, the size or capacity of the cache memory is only a fraction of the size of the main
memory (for example, 8 MB cache and 4 GB DRAM main store). Cache memory systems are designed so that
the most frequently used data is in the cache and, therefore, the average access time of the memory system is
much reduced.

Computer Science & Information Technology

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Which of these software packages are not open source software (OSS)?

A) Microsoft Windows B) Mozilla Firefox Web browser C) Apache Web server D) A Linux operating system

Computer Science & Information Technology

Which function removes all items from the vector?

A. at() B. empty() C. clear() D. pop_back()

Computer Science & Information Technology

Complete the class EmployeeRecord by defining the functions indicated below.

#include 
#include 
#include 
using namespace std;

class EmployeeRecord {
public:
	EmployeeRecord () {}
	EmployeeRecord ( const string&, const string&, double );
private:
	string lastName;
	string ssNum;
	double payRate;
friend ostream& operator<< ( ostream&, const EmployeeRecord& );
friend istream& operator>> ( istream&, EmployeeRecord& );
};


int main()
{
   EmployeeRecord oneEmp( "Johnson", "520-92-5526", 5.90 );
   cout << oneEmp;
   return 0;
}

Computer Science & Information Technology

Match the following cases with their main features

6. New York v. Ferber a. evaluating the application of the First Amendment to commercial speech 7. Osborne v. Ohio b. making virtual pornography legal 8. Ashcroft v. Free Speech Coalition c. ruling that PROTECT does not prohibit a substantial amount of protected speech 9. U.S. v. Williams d. establishing a standard of scienter that had been lacking in the previous ruling 10. Central Hudson Gas and Electric v. Public Service Commission of New York e. placing of child pornography outside the umbrella of free speech guaranteed by the Constitution

Computer Science & Information Technology