user in today’s market wants information as soon as possible. The demand for increased speed is determined by several factors. A few of these factors are Random Access Memory (RAM)‚ clock speed‚ data on the hard disc‚ data on a CD ROM‚ and data on a floppy disc. The role of these factors can determine the speed of a computer. Random Access Memory‚ otherwise referred to as RAM‚ is a working area where the operating system (e.g. Windows)‚ programs and data in current use are kept‚ ready to be accessed
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To be filled by the Learner Name of the Learner :Sajith Nilnuwan Hettiarachchi ------------------------------------------------- Edexcel No : Centre No : Batch:21 ------------------------------------------------- Date of Submission : Assessor : Internal Examiner (IE) : Date Reviewed : Date of IE : Date Issued : Date Due : Unit Assessment Information Qualification : Higher National Diploma in Computing and Systems Development Unit Code & Title
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Data types * text * still and moving images * numbers * sound Input devices Keyboards · Most common type of keyboards is the qwerty keyboard · Another type of keyboard is a concept keyboard. They can be specially designed so that people with restricted vision can use them to interact with a computer. Most commonly programmed to perform common commands with one key. Point and click devices · Include mouse‚ tracker balls‚ touch sensitive pad‚ joystick‚
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types of computers which were developed in previous years. They consisted of a hard drive a type of keyboard and mostly a very small screen. Moving into the 70’s we started developing more useful things like the floppy disk. This made it possible to store information onto a removable disk that could be transferred to other compatible computers. We also see the first microprocessor‚ which is a type of miniature electronic device that contains the arithmetic‚ logic‚ and control circuitry necessary to
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two types of storage; primary and secondary storage. Primary storage is the computer circuitry that temporarily holds data waiting to be processed (ROM) and it is inside the computer. Secondary storage is where data is held permanently. A floppy disk‚ hard disk or CD- ROM is examples of this kind of storage. 4. Output – This is whatever is put out from the computer system as the result of processing. Processed information is output‚ e.g. numbers or pictures displayed on the monitor‚ music piped
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advantages and disadvantages of flash memory devices over hard disks as storage media? HARD DISK Advantages Large storage capacity Stores and retrieves data much faster than a floppy disk or CD-ROM Data is not lost when you switch off the computer Usually fixed inside the computer so cannot get mislaid. Cheap on a cost per megabyte compared to other storage media. Hard disks can be replaced and upgraded as necessary Can have two hard disks in a machine‚ one can act as a mirror of the other and create
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Over the past 30 years the change in RAM will shock you. In 1955 to let’s say the 1970’s prices ranged anywhere from two hundred dollars to nine hundred dollars. Years past 51 to be exact‚ hard drives reached 1TB. This took place in 2007. But‚ in 2009 two years later the first hard drive with 2 TB was made. Being that it only took two years for this versus the 51 it took to make the first one companies brainstormed on how to make this better. Hard drives have also changed tremendously
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you will create and manipulate partitions on a basic disk. Mindset Basic disks enable you to create simple volumes and then extend or shrink them as needed. Completion time 10 minutes 4. Click OK to initialize Disk1 and Disk2. Based on the information in the Disk Management snap-in‚ fill out the information in Table 22-1 on your lab worksheet. Table 22-1 Disk information Disk 0 Disk 1 Disk 2 Disk type (basic or dynamic) Total disk size Number and type of partitions Amount of unallocated
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Chapter 5 Supporting Hard Drives Reviewing the Basics 1. What are the two types of technologies used inside hard drives? SOLID STATE & MAGNETIC 2. What are four speeds in revolutions per minute that the spindle inside a hard drive might rotate? 5400‚ 7200‚ 10000‚ 15000 3. What is the name of the Windows technology that supports a memory buffer in a hybrid drive? READY DRIVE 4. When the OS addresses the sectors on a hard drive as one long list of sequential sectors‚ what is this technology called
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The Journey Inside 4 .1 Introduction to Computers Lesson 2: Four Components of a Computer Directions: Use the http://educate.intel.com/en/TheJourneyInside/ExploreTheCurriculum/ website to complete the units in this series. Choose Intro to Computers on the gray menu bar. Choose Lesson 2 on the left side of your screen and complete the questions below after reading the paragraph‚ watching the video‚ and completing Activity 1. 1. Both a toaster and a computer have physical parts you can
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