QUESTION 1 Scheduling is a fundamental operating systems function. Almost all computer resources are scheduled before use. CPU is one of the primary computer resources uses scheduling to design the processes in an operating system. The operating system can make the computer more productive by switching the CPU among processes called CPU scheduler. a) Explain what is CPU scheduler? State FOUR (4) goals of the CPU scheduler in an operating system. CPU scheduler is to selects from among
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Exemplar Work for SAMs Units A452 and A453 © OCR 2012 Unit A452 Practical Investigation Unit Recording Sheet GCSE Computing Controlled Assessment Guidance [6 - 10] [0 - 5] Oxford Cambridge and RSA Examinations URS665 Devised September 2010 There is evidence of a practical investigation g The evidence supplied is documented clearly and is relevant to the set task There is evidence of individual research beyond y the group g p activity y and any teacher led activity. y The practical investigations
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Running head: MEMORY COST 1 Unit 6 Analysis 1: Memory Cost Brian Fuggle NT1110 07/23/13 ITT-Tech‚ Jacksonville‚ Florida MEMORY COST 2 Abstract This paper describes the decline in memory cost of both RAM and hard drive storage. Also‚ this paper will provide an opinion of when a 100 TB hard drive will become available and how much memory will be able to be purchased for $100 ten years from now. MEMORY COST 3 Memory Cost Back in 1981 an 18 MB hard drive would have cost around
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The first single chip CPU was the Intel 4004 invented in Nov 1971‚ a 4-bit processor meant for a calculator. It processed data in 4 bits‚ but its instructions were 8 bits long. Program and data were separate. In 1972‚ Texax Instruments followed the Intel 4004/4040 closely with the 4-bit TMS 1000‚ which was the first microprocessor to include enough RAM‚ and space for a program ROM‚ to allow it to operate without multiple external support chips. It also featured an innovative feature to add custom
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The Arduino Mega 2560 is a microcontroller board based on the ATmega256 .It has 54 digital input/output pins‚ 16 analog inputs‚ 4 UARTs ‚ 16 MHz crystal oscillator‚ USB connection‚ power jack‚ ICSP header‚ and a reset button. It has everything needed to support the microcontroller. The USB connection can be used to power the Arduino Mega. The power source makes use of automatic connection. External power can come from an ADC adapter or battery. Leads from the battery can be inserted in the Ground
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Central Processing Units Once data have been captured‚ they usually must be processed to be valuable to decision makers and these processing tasks are performed by the central processing unit (CPU) of a computer system. A central processing unit (CPU)‚ also referred to as a central processor unit‚ is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical‚ logical‚ and input/output operations of the system. In the computer industry
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0 out of 10 What is a system unit? a case containing the electronic components of the computer used to process data a device that interprets and carries out the basic instructions used to operate the computer a component of the processor that directs and coordinates most computer operations a circuit board to which many electronic components are attached Feedback Incorrect. The component that directs and coordinates most computer operations is the control unit. Question 2 Points: 10 out of
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Microprocessor is the controlling unit or CPU of a micro-computer‚ fabricated on a very small chip capable of performing ALU operations and communicating with the external devices connected to it. 3 www.eazynotes.com 03-Aug-2011 A Computer A computer: Accepts the data from the user. Stores the data and the set of instructions supplied by the user in memory. Processes the data according to the instructions in the processing unit. Communicates the result to the
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Every PC has a Central Processing Unit (CPU) this acts as the brain of your system. It connects to the Motherboard and works alongside the other components processing many instructions at the same time between the different hardware and memory systems. Advancements in CPU technology now mean systems typically come with Dual Core‚ Triple core or Quad Core processors (on one single chip) instead of the traditional one core per chip. Now the total number of Cores can slot into a socket as before and
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