Intro Ch 06 A
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The document describes different types of storage devices used in computers. It discusses magnetic storage devices like hard drives and floppy disks which use magnets to write binary data to iron oxide coated disks. Optical storage devices like CDs and DVDs are also covered, using lasers to write to disks. Finally, solid state devices are mentioned, which store data physically without moving parts, like flash memory in USB drives and cameras.
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Intro Ch 09 B
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Intro Ch 08 B
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Chapter 7A Peter Norton
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Intro Ch 09 A
A network connects computers and allows communication and collaboration between users. Common uses of networks include simultaneous access to shared data files, shared peripheral devices like printers, personal communication through email and video conferencing, easier backup of data, and access to shared software. Common network types include local area networks (LANs) contained within a single building, wide area networks (WANs) connecting multiple LANs over a large geographic area, and hybrid networks like campus area networks, metropolitan area networks, home area networks, and personal area networks.
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Intro Ch 07 B
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This chapter introduces computers and their basic components. It defines a computer as an electronic device that processes data. A computer system has four main parts: hardware, software, data, and people. Hardware refers to the physical parts of the computer like the processor, memory, storage, and input/output devices. Software includes the programs or instructions that make the hardware work, divided into system software and application software. The chapter lists five professions where computers are commonly used and how they have changed people's work. It also outlines the four main types of computers and what tasks each performs best.
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This document outlines and describes various computer components. It discusses input devices like keyboards, mice, microphones and scanners that allow data to be entered into the system. Output devices are described as monitors, printers and speakers that display processed information to the user. The system unit contains core components like the CPU and motherboard. Storage devices permanently hold data and include hard disks, USB drives and optical discs. Communication devices allow computers to exchange information with each other using items like modems.
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Intro Ch 07 B
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Chapter 1B Peter Norton
The document discusses computer hardware, software, and input devices. It describes the four main parts of a computer system as the hardware, software, data, and users. The hardware is divided into processors, memory, input/output devices, and storage. Common input devices include keyboards and mice. Keyboards allow text entry while mice allow pointer positioning. Variants of mice include trackballs and trackpads. The document emphasizes ergonomics and proper techniques for using input devices to avoid repetitive strain injuries.
Intro Ch 04 A
The document discusses various types of computer monitors and video output devices. It describes cathode ray tube (CRT) monitors as the most common traditional monitor type and liquid crystal display (LCD) monitors as more modern. It also covers video cards, ergonomics considerations for monitors, data projectors, sound systems, and headphones/headsets.
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The document discusses various input devices for computers beyond the traditional keyboard and mouse. These include pen-based devices like tablets and PDAs that use handwriting recognition and on-screen keyboards. Touch screens allow input through finger touches on the screen. Game controllers enhance the gaming experience. Optical scanners like barcode readers and image scanners convert printed information into digital formats. Audiovisual devices include microphones for speech recognition, MIDI interfaces for digital music, and digital cameras for electronic image capture.
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The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Pc components
1. The document discusses the three main components of a computer system: hardware, software, and peopleware.
2. It provides detailed descriptions of operating systems, application software, input devices, storage devices, output devices, and other hardware components that make up a computer system.
3. The document categorizes and lists examples of various types of software, hardware components, operating systems, and other parts that comprise the overall computer system.
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The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
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This document provides an overview of different types of productivity software, including word processing programs, spreadsheet programs, and presentation programs. It discusses how software can be acquired commercially, through freeware/shareware, or as open source. Key features of word processing, spreadsheet, and presentation programs are outlined, such as interfaces, entering and formatting text/data, and creating slides. Personal information managers are also introduced as software to track contacts and schedules.
Intro ch 05_a Peter Norton
This document discusses how computers represent and process data. It explains that computers use the binary number system to represent data as strings of 0s and 1s at the most basic level. It also describes how data is stored and processed by a computer's central processing unit (CPU) and memory. Key components that affect a computer's processing speed are also outlined, such as the CPU clock speed, memory size, and types of buses used to transfer data.
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chapter 1 peter norton introduction to computers
This chapter introduces computers and their basic components. It defines a computer as an electronic device that processes data. A computer system has four main parts: hardware, software, data, and people. Hardware refers to the physical parts of the computer like the processor, memory, storage, and input/output devices. Software includes the programs or instructions that make the hardware work, divided into system software and application software. The chapter lists five professions where computers are commonly used and how they have changed people's work. It also outlines the four main types of computers and what tasks each performs best.
Components of computer
This document outlines and describes various computer components. It discusses input devices like keyboards, mice, microphones and scanners that allow data to be entered into the system. Output devices are described as monitors, printers and speakers that display processed information to the user. The system unit contains core components like the CPU and motherboard. Storage devices permanently hold data and include hard disks, USB drives and optical discs. Communication devices allow computers to exchange information with each other using items like modems.
Functions Of Operating System
The operating system is system software that monitors, controls, and maintains the overall functions of the computer. It performs key functions such as process management, resource management, file management, communication management, security management, and memory management. Process management involves starting and stopping processes from boot up to shutdown. Resource management installs drivers and coordinates peripherals. File management handles file naming, organization, location, and attributes. Communication management facilitates interaction between users, applications, and hardware both internally and between networked computers. Security management provides virus protection, passwords, firewalls, and access controls.
storage devices
Storage devices can be optical, magnetic, or solid state. Optical devices like Blu-ray discs, CDs, and DVDs use lasers to read and write data while magnetic devices such as hard disks, magnetic tape, and floppy disks use magnetism. Solid state devices like external hard drives, SD cards, and USB flash drives store data electronically without moving parts or power source. Common storage devices vary in size, portability, storage capacity, and whether the data can be erased or not.
Intro ch 01_a
This document provides an overview of the history and basics of computer systems. It discusses how the modern definition of a computer emerged in the 1940s with the development of electronic computing devices. It describes some of the earliest electronic digital computers developed in the 1940s including the ABC, MARK-1, ENIAC, EDSAC, and UNIVAC-1. It explains the key components of a computer system according to von Neumann's influential report including input, processing, storage, and output of data. Finally, it briefly outlines how computers have impacted society through uses in homes, education, business, industry, government, and healthcare.
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chapter 7b peter norton Survey of PC and Network Operating System
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This document introduces computers and their basic components. It defines a computer as an electronic device that processes data. The four main parts of a computer system are hardware, software, data, and people. Hardware refers to the physical parts of the computer, software contains the computer's instructions, data is the raw facts manipulated by the computer, and people are the users. The document outlines the four types of computer hardware, two categories of software and their purposes, and four common types of computers and the jobs they perform best.
Intro Ch 03 A
The document discusses different input devices used with computers including keyboards, mice, and variants. It covers how keyboards and mice work, common actions used with mice like clicking and dragging, and different types of mice like trackballs and trackpads. The document also discusses ergonomics as it relates to input devices and repetitive strain injuries that can result from prolonged use of keyboards and mice without proper posture and technique.
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Intro Ch 01 B
The document discusses the four main parts of a computer system: hardware, software, data, and users. It describes the essential hardware components, including processing devices like the CPU and secondary processors, memory devices like RAM and ROM, and input/output and storage devices. It also explains the two types of software - system software like the operating system, and application software that accomplishes specific tasks. Finally, it notes that data has no meaning on its own and is stored using binary numbers, while users interact with the computer depending on their abilities.
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Intro Ch 05 A
The document discusses how computers represent and process data. It explains that computers use the binary number system to represent data as strings of 0s and 1s at the bit level, and that bytes made of 8 bits are used to represent individual characters. It also describes how the CPU processes instructions in cycles, with components like the control unit, ALU, and registers. Memory is used to store open programs and data, and can be volatile RAM that requires power or nonvolatile flash memory. Processing speed depends on factors like the CPU clock speed, memory size and speed, number of registers, bus speeds, and cache memory.
Intro Ch 01 A
The document introduces different types of computer systems. It discusses desktop computers, notebooks, tablet computers, handheld devices, network servers, mainframes, minicomputers, and supercomputers. It also outlines the impact of computers in society and their uses in homes, education, small business, industry, government, and health care. Computers have become essential tools that provide information to users which is critical in modern society.
Intro Ch 04 B
The document discusses different types of commonly used printers, including impact printers like dot matrix printers and non-impact printers like inkjet and laser printers. It describes how each type of printer works, for example that inkjet printers spray ink onto paper while laser printers use toner and heat to print high quality documents. The document also covers special purpose printers used in print shops that can print on various surfaces and produce professional quality output.
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Dial-up is the slowest type of internet connection and should be avoided if possible. DSL uses phone lines for a faster broadband connection without requiring a landline. Cable connects through cable TV lines and can be faster than DSL but is only available in areas with cable infrastructure. Satellite connects through satellites and doesn't require phone or cable lines but is usually slower. Mobile 3G and 4G connect wirelessly but may not be as fast as DSL or cable. An internet service provider provides access using these technologies.
Intro ch 04_b
There are two main types of printers: impact printers that use force to print and non-impact printers that use other methods. Dot matrix printers are an example of an impact printer that uses a print head to strike an inked ribbon. Inkjet printers are a common non-impact printer that sprays ink onto paper. Laser printers are also non-impact and produce high quality documents using a laser to draw text on a page with toner. All-in-one peripherals that have scanning, copying, printing, and faxing capabilities are popular for home offices.
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This document discusses various types of wired and wireless internet connections. It describes dial-up connections using standard phone lines, broadband connections like cable or DSL that provide higher speeds, and ISDN connections. It also outlines wireless options including wireless WANs using radio signals, satellite services for remote areas, and wireless LANs that connect to a local wired network without wires. The document notes the importance of security for wireless transmissions and discusses some encryption protocols.
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Interacting with Your Computer
This document discusses input and output devices for computers. It describes common input devices like keyboards, mice, and touch screens. For output, it covers monitors, printers, and interfaces. Monitors display images through scanning lines from left to right and top to bottom. Printers mentioned include inkjet, laser, and dot matrix printers. The document explains how serial, parallel, and SCSI ports facilitate communication between input/output devices and other computer components.
Intro Ch 02 B
This document discusses various internet services including email, newsgroups, file transfer protocol, internet relay chat, instant messaging, online services, and peer-to-peer services. It provides information on how to configure and use email clients to send and receive messages with attachments. It also describes how newsgroups allow users to read and contribute to discussions on various topics, and how file transfer protocol and peer-to-peer services allow sharing and transferring of files between computers. Instant messaging and internet relay chat enable real-time communication between users online.
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The document discusses operating system basics, including defining an operating system as a program that controls hardware and application execution. It describes the objectives of operating systems as providing convenience, efficiency, and ability to evolve. It outlines the layers of a computer system and services provided by operating systems like program development, execution, I/O access, and error detection. It also explains the functions of operating systems in providing user interfaces, running programs, managing hardware, and organizing files. Finally, it discusses types of operating systems and ways to enhance an operating system with utilities like backup software, anti-virus, and firewalls.
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Introduction to computers by peter norton 6 e (c.b)
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This chapter describes different types of storage devices used in computers. It discusses magnetic storage devices like hard disks and floppy disks, which use magnetism to store data. Optical storage devices like CDs and DVDs are also covered, which use lasers to read and write data. Finally, solid-state storage options like flash memory, smart cards, and solid-state drives are introduced. The document provides details on how each storage type works and its common uses. It also discusses topics like formatting disks, finding data locations, and measuring/improving drive performance.
Computers12 Ch6
The document discusses different types of secondary storage used in computer systems, focusing on magnetic disk storage. It describes diskettes and hard disks, the basic components and technologies used. Diskettes are flexible and store 1.44 MB or less, while hard disks are rigid platters that can store hundreds of gigabytes. Hard disks assemble multiple platters and use read/write heads to access and transfer data via tracks and sectors.
Storage devices
Primary storage refers to memory in a computer system like RAM and ROM. Secondary storage is provided by peripheral devices like hard disks, floppy disks, optical disks, and tape drives to store large amounts of data outside of memory. Secondary storage is required for three reasons: 1) memory contents are volatile and lost when power is disconnected, 2) memory capacity is limited, and 3) memory is more expensive than secondary storage. Common secondary storage devices include floppy disks, hard disks, CDs, DVDs, and tape drives used for backups.
Introduction of storage devices(Brief Knowledge)
On these sides, you learn about storage devices and how many storage devices we can use in Computer System.
system storage
This document discusses different types of computer storage. It describes primary storage, which stores data during operations like RAM and ROM, and secondary storage, which stores data permanently like hard disks, flash drives, and optical discs. Hard disks are discussed in detail, including their components, recording techniques, controllers, and different types. Other storage devices covered include solid state drives, memory cards, USB flash drives, cloud storage, optical discs, tape, magnetic stripe cards, smart cards, microfilm, and enterprise storage solutions.
Disk storage devices
This document discusses different types of disk storage devices. It begins by defining disk storage as using magnetic, optical, or mechanical methods to record data on rotating disks. The first commercial disk storage device was the IBM 350 in 1956. Disk storage offers advantages like speed of access, control over data, lower cost per unit of data, and reliability compared to other storage methods. The document then describes different types of disk storage devices like hard disk drives, optical storage devices, magnetic tape drives, floppy disks, and portable hard disks. It explains the mechanisms, structures, and characteristics of each type.
Intro_ch_6B.types of storage devices.ppt
This document discusses different types of storage devices. It describes how magnetic storage devices like hard drives and floppy disks store data using magnets to write binary codes onto metal platters coated with iron oxide. Optical storage devices like CDs and DVDs use lasers to write data onto disks. Solid-state devices store information using physical switches instead of magnets or lasers, making them very fast but more expensive than magnetic devices. Common examples discussed are flash drives, smart cards, and solid-state disks.
Faizan Chap 07 Storage
The document discusses various types of storage media and their characteristics. It describes storage units like kilobytes, megabytes, gigabytes, and terabytes. It then explains different storage devices such as floppy disks, hard disks, zip disks, CDs, DVDs, tape drives, and external storage devices. Key details about the storage capacity and functioning of these devices are provided.
storage devices
Primary storage refers to memory like RAM and ROM, while secondary storage refers to peripheral devices like disks and tapes used for additional storage. Secondary storage is required for three reasons: data in memory is volatile and can be lost, memory capacity is limited, and memory is more expensive than secondary storage. Common secondary storage devices include floppy disks, hard disks, and optical disks like CDs and DVDs, as well as tape backups. Floppy disks can store 1-100 MB of data but are small and portable. Hard disks can store hundreds of GB but are fixed internally; removable hard disks also exist. Optical disks like CDs and DVDs can store large amounts of data quickly but DVDs store more data and
Chapter1 9-07
The document discusses different types of computer memory and storage devices. It describes RAM, ROM, PROM, and EPROM as memory devices, and how they differ in terms of volatility and accessibility. For storage, it outlines magnetic devices like hard disks, floppy disks, and tapes, as well as optical disks like CDs, DVDs, and Blu-ray. It provides details on the storage capacities and characteristics of each type of memory and storage device.
secondry storage ahsan warraich
The document provides information about secondary storage. It begins by defining secondary storage as non-volatile, long-term storage used to store programs and data when a computer is switched off. The main types of secondary storage are magnetic storage devices like hard disk drives. Advantages of secondary storage include safety, reliability, permanence, and ability to store huge volumes of data cheaply. Disadvantages are slower speed compared to primary storage. Common secondary storage devices discussed include hard disks, optical discs like CDs and DVDs, USB flash drives, memory cards, and smart cards.
Presentation on computer data storage
Primary memory, also known as main memory or internal memory, is directly accessible to the CPU and holds temporary data during program execution. It includes RAM, ROM, PROM, and EPROM. Secondary memory, also called external memory or auxiliary memory, provides larger storage and retains data when power is removed. Common examples are hard disks, CD-ROMs, magnetic tapes, and flash memory. Secondary memory is organized into files and directories for abstraction and includes additional metadata.
Week4 final
This document discusses different types of storage devices and how they function, including their relative speeds, capacities, and uses. It begins by explaining the hierarchy of storage devices from fastest to slowest: registers, cache, RAM, hard disks, optical disks, magnetic tapes, and solid state storage. The document then covers specific storage technologies like hard disk drives, optical disks (CDs, DVDs, Blu-ray), magnetic tapes, solid state drives, smart cards, and flash memory. It compares their performance and how operating systems manage storage using techniques like formatting, file systems, defragmentation, and compression.
Digital Storage
Digital storage takes many forms and provides different capabilities. Storage media is the physical material that stores data, while storage devices access and retrieve stored information. Common storage technologies include magnetic hard disks with platters and read/write heads, solid state drives using flash memory, optical discs like CDs and DVDs, as well as cloud storage over the internet. Larger organizations rely on enterprise storage solutions such as network attached storage, tape drives, and RAID configurations to manage and back up large volumes of data reliably.
Storage_Devices-WPS_Office.pptx
This document discusses various computer storage devices. It begins by defining basic units of storage like bits, bytes, kilobytes, megabytes, etc. It then describes different types of primary storage devices like RAM and ROM as well as secondary storage devices like hard disks, CDs, DVDs, flash memory, and magnetic tapes. Specific storage devices are then discussed in more detail including hard disks, optical discs, magnetic disks, disk caches, and various memory cards. The document concludes by covering other older storage technologies like zip disks and super disks.
12. Computer Systems Hardware 2
The document summarizes different types of computer hardware including auxiliary storage devices, input/output architecture, and interfaces. It describes magnetic tape, disks, floppy disks, optical disks, and semiconductor disks. It also covers RAID configurations, input/output control methods like bus, DMA, and different interfaces like serial, parallel, SCSI, and USB.
MY REPORT IN BLIS 110
The document discusses various types of storage media including hard drives, floppy disks, tape, Zip disks, CDs, DVDs, Blu-ray discs, USB flash drives, memory cards, solid state drives, and cloud storage. It provides details on the capabilities and uses of each medium. Hard drives can permanently store large amounts of data but are not portable, while removable media like floppy disks, Zip disks, CDs, DVDs, and USB flash drives allow portability but have more limited storage capacity. Newer technologies like solid state drives and cloud storage provide higher speeds and capacity.
O Leary2008 Ce Complete Chapter8
The document discusses various types of secondary storage devices. It describes floppy disks, hard disks, optical disks, solid-state storage, internet drives, magnetic tape, and mass storage devices. It explains the characteristics and capabilities of each type of storage including capacity, access speed, portability and applications used. The document also discusses technologies for improving hard disk performance and emerging technologies that could store an entire life's data on a single disk in the future.
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Intro Ch 06 A
- 1. McGraw-Hill Technology Education Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
- 2. Chapter 6A Types of Storage Devices
- 6. Magnetic Storage Devices Floppy Disk Hard Disk Tape
- 28. Chapter 6A End of Chapter