INPUT DEVICES 1. Where does the name QWERTY keyboard come from ? The name QWERTY comes from the first six letters on the top row of the alphabet keys. 2. Why do think the QWERTY keyboard is the most popular method of data entry? The QWERTY keyboard is the most popular method of entering data because an easy way of usage and when you get used to it you start typing faster 3. Who might make use of a concept keyboard? A concept keyboard might be used by a fast food restaurant
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1. Introduction to Network Devices All networks are made up of basic hardware building blocks to interconnect network nodes‚ such as Network Interface Cards (NICs)‚ Bridges‚ Hubs‚ Switches‚ and Routers. In addition‚ some method of connecting these building blocks is required‚ usually in the form of galvanic cable (most commonly Category 5 cable). Less common are microwave links (as in IEEE 802.12) or optical cable ("optical fiber"). An ethernet card may also be required. Network interface cards
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Types of Storage Devices Physical components or materials on which data is stored are called storage media. Hardware components that read/write to storage media are called storage devices. Two main categories of storage technology used today are magnetic storage and optical storage. Primary magnetic storage o Diskettes o Hard disks (both fixed and removable) o High capacity floppy disks o Disk cartridges o Magnetic tape Primary optical storage o Compact Disk Read Only Memory (CD ROM)
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STORAGE DEVICE Definition A storage device can be defined as any piece of hardware whose main function is to store data and information The hardware that writes data to or reads data from a storage medium is called a storage device. Types of Computer Storage Devices Computer storage devices can be classified into o Primary storage o Secondary storage o Tertiary storage Primary Computer Storage Devices Primary storage refers to the computer’s memory(RAM) RAM (Random Access Memory)
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Are "Bring Your Own Device" Programs Effective in Classrooms? Michelle A. Peterson Western Governors University 000346643 Are "Bring Your Own Device" Programs Effective in Classrooms? The world around us is changing every day. Technology grows exponentially‚ which makes it virtually impossible to keep up with the rapid changes. No longer do students carry pens‚ pencils and folders. Gone are the days of making numerous trips to the library and using a card catalog to find books that most
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Types of Storage Devices A storage device is a device capable of storing data. The term usually refers to mass storage devices‚ such as disk and tape drives (www.webopedia.com). In this paper I will explore different types of storage devices and which ones are optimal for different situations. I will also explain what situations are appropriate for the following devices and explain why: a. Hard disk b. Floppy disk c. RAM d. CD ROM e. Tape Hard Disk A hard disk is a magnetic disk on
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Introduction Computer is a machine that can be programmed to accept data (input) process it into useful information (output) and stored it away (in a secondary storage device) for safekeeping or later reuse. The processing input to output is directly by the software but performed by the hardware. To function‚ a computer system requires four main aspect of data handling: Input Processing Output Storage Secondary
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What’s Wearable Devices? Introduction Wearable technology‚ wearable devices‚ tech togs‚ or fashion electronics are clothing and accessories incorporating computer and advanced electronic technologies. History Wearable technology is related to both the field of ubiquitous computing and the history and development of wearable computers. With ubiquitous computing‚ wearable technology share the vision of interweaving technology into the everyday life‚ of making technology pervasive and interaction
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Video 1.06 Storage Devices Hard Drives Hard drives are comprised of platters Read/Write heads for each platter Read and write on top and bottom of platter Never exposed to magnets Data loss may occur 137 GB Limit Hard Drive size limited to 137GB Not a physical limit Limited by address the system can support 28 bit communications limited to 268‚435‚555 addresses equates to 137 GB Flash BIOS to upgrade hard drive interfaces PATA‚ SATA‚ SCSI‚ USB‚ and FireWire most common is the
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Approximately one third of the patients have Peripheral Artery Disease (PAD) with diabetes mellitus. Patients who have type 2 diabetes mellitus have a higher risk of developing Peripheral Artery Disease and macrovascular disease. When Peripheral Artery Disease has developed in a patient with diabetes‚ prognosis in a patient is very poor. Over a 5-year period approximately 4 % of the patients experience limb loss‚ 20 % have myocardial infarction or stroke and 30 % die. A huge majority of (75 % to
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