Operating Systems Task 1 An operating system (OS) is a part of software which manages the operation of a computer. It controls the hardware and software of a computer‚ without it a computer would be useless. DOS Disk operating system (DOS) was released in 1981. It will load from a floppy disk each time a computer starts. DOS uses a command line interface. Command line interface can be difficult to use if you aren’t trained or experienced in using it. DOS is the predecessor to windows. DOS is
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Chapter no | Topic | 1 | Introduction‚ Types ‚ Computer System Overview | 2 | Operating System Structure‚ Components and Functions‚ Virtual Machine | 3 | Process Concept‚ Operation‚ Process scheduling‚ symmetric multi -processing‚ Cooperating Processes | 4 | Thread Concept‚ Thread Vs Process‚ IPC ‚kernel ‚microkernel | 5 | Scheduling‚ Types‚ Scheduling in batch‚ interactive and real-time systems (SJN‚ SJF‚ FIFO‚ LJN‚ round-robin‚ priority scheduling‚ and hybrid schemes). | 6 | Deadlock:
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The Cold War was a time of great competition between the United States and the Soviet Union; one of the competitions being the Space Race. Due to advancements in technology throughout the world pressured by the Cold War‚ the United States and the Soviet Union were able to push their way into space‚ each trying to outdo the other‚ eventually resulting in the United States putting the first man on the moon on July 20‚ 1969 during the Apollo 11 mission. The United States beating the Soviet Union to
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GROWTH (BG 007) ANALYSIS REPORT ON STUDY OF EMERGENCE OF EMIRATES AS A GLOBAL AIRLINE
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Emirates Airline is one of the five world leading airline companies founded in 1985. It was awarded the “World’s Best Airline” by Skytrax at the 2013 World Airline Awards. In addition Emirates Airline was awarded the “Best Middle East Airline” and for the ninth year in a row “World’s Best Inflight Entertainment”. Emirates Airline serves over 39 million customers a year based on 2013 data. Nonetheless as every other business‚ Emirates Airline faces its own challenges. The company needs to update
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program in execution. It is a unit of work in the system. A program by itself is not a process. It is a passive entity‚ like the contents of a file stored on disk‚ whereas a process is an active entity. 1.7 To improve CPU utilization and responsive time‚ general-purpose computers must keep several programs in memory‚ creating a need for memory management. 1.8 OS provides a uniform‚ logical view of information storage. Caching is an important principle‚ performed at many levels in a computer and
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Executive Overview: Lufthansa is the largest airline in Europe in terms of passengers carried. By 2002‚ Lufthansa had become of the strongest airlines and top aviations groups in the world. Lufthansa had undergone a decade of fundamental change. Lufthansa was transformed from a state-owned‚ unprofitable national airline into one of the most profitable‚ privately owned aviation groups in the industry. The group turned a record loss of €350 million in 1992 into a pre-tax profit of €952 million in
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of short-term funds? 1. The single-payment loan is the simplest credit arrangement and is usually given for a specific purpose‚ such as the purchase of inventory. 2. A line of credit is an agreement that permits a firm to borrow up to a specified limit during a defined loan period. 3. A revolving credit is similar to a line of credit except that it is usually for a period longer than 1 year. Revolving credit agreements may be in effect for 2 to 3 years. 3. An organization ’s short-term investment
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NTSB Investigating Southwest Airlines Flight 345 accident at LaGuardia Airport The National Transportation Safety Board is investigating the July 22‚ 2013 nose-down landing of a Southwest Airlines Boeing 737-700 at LaGuardia Airport in New York. The accident occurred at 5:45 p.m. after the twin-engine jet’s nose landing gear collapsed rearward and upward into the fuselage‚ damaging the electronics bay‚ which houses avionics and other equipment. The exterior of the airplane was also damaged from
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entire file: 1‚400 * 1‚684 2‚357‚600 BYTES e) Time to write all of the blocks: (A+((B*11)*F))*(11*1‚684) (10+((.1*11)*10))*(11*1‚684) (10+(1.1*10))*18‚524 (10+11)*18‚524 21*18‚524 389‚004 MS f) Time to write all of the records if they’re not blocked: (A+(C*B))*D (10+(19‚000*.1))*200‚000 (10+1‚900)*200‚000 1‚910*200‚000 380‚000‚000 MS g) Optimal blocking factor to minimize waste: IDK. h) What would be the answer to (e) if the time it takes to move to the next track were 5ms? 389
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