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Microcomputer/Network Specialists administer networks for an agency and provide support services for its users. Positions in this series work under technical supervision or general administrative direction to provide network planning, design, modification, implementation, security and administration.
Distinguishin g Characteristics:
Microcompute r/Network Specialist II represents the advanced proficiency network administrator.
Microcomputer/ Network Specialists' duties emphasize administration of microcomputer networks and are oriented toward providing microcomputer hardware and software support services to end-users.
Mini Computer :
When the term "minicomputer" initially was coined it denoted a physically small, low-cost computer using available technology and designed to perform a specific function. Usage of these devices was limited mainly to the laboratory, certain process-dependent industrial tasks, and special-purpose computational problems. Today, the minicomputer is no longer limited to such systems. However, not all computing specialists, library systems analysts, and librarians realize that the situation is rapidly changing and will continue to do so. Sometimes the feelings one experiences when discussing mini- computers, particularly as independent processors, may be conveyed by the following verse : Automation Is Vexation, Quarternions are bad; Analysis Situs Is only detritus I wonder: Have I been had? 1 The misconceptions which were based on the qualities of minicomputers until the last few years were: 1. slow instruction execution time and cycle time, 2. small memory with lack of expansion, 3. lack of peripheral equipment, 4. lack of peripheral device interfaces, 5. low reliability and unsatisfactory maintenance services, 6. poor programming instruction sets, 7. lack of vendor-supplied software, 8. greater programming difficulty, 9. lack of character addressability, 10. lack of hardware multiply and divide, and 1 1 . image as front-end processors requiring large host computers for file updating and output processing. This paper seeks to dispel these misconceptions in the broad sense, although one can see that individual minicomputers have specific strengths and weaknesses dependent upon the end application use. The minicomputers considered here are machines available currently and developed in the last two to three years.
Super Computer:
The largest computers are supercomputers. They are the most powerful, the most expensive, and the fastest. They are capable of processing trillions of instructions per second. Examples of users of these computers are governmental agencies, such as the IRS, the National Weather Service, and the National Defense Agency. Also, they are used in the making of movies, space exploration, and the design of many other machines. The Cray supercomputer is nicknamed "Bubbles", because of its bubbling coolant liquids. Cray supercomputers, the first of which was invented by Seymour Cray, now maintain 75 percent of the supercomputer market. Supercomputers are used for tasks that require mammoth data manipulation.
Microcomputer s can be divided into two groups -- personal computers and workstations. Workstations are specialized computers that approach the speed of mainframes. Often microcomputers are connected to networks of other computers. The price of a microcomputer varies greatly from less than $1000 to several thousand dollars, depending on the capacity and features of the computer. Microcomputers make up the vast majority of computers.
Answered by
Uttam
, an ibibo Master,
at
2:07 PM on June 11, 2008