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Hardware Components

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Introduction

Hardware Components 1.1.1 What is hardware? It's a word used to describe devices. It' the part of the computer system you can touch or see it. 1.1.2 What is software? Anything that can be stored electronically is software. 1.1.3 Complete the following table - put a "y" in the correct column Name of Item Hardware Software Something Else Screen V Keyboard V Sony Playstation Game V Toaster V Operating system V Video V Printer V CD or DVD V Ringtone V Word processing program V This worksheet V ? Writing 1.2.1 Fill in this table: Put a number from (1) to (4) for in each box. Put (1) for the most expensive, most portable biggest and (4) for the least expensive, least portable and smallest. Give an example of at least one use for each type of computer. Category Mainframe Personal (P.C.) Laptop PDA Cost 1 4 2 3 Portability Storage Capacity 1 Use use as a clock, calendar and accessing the Internet Find a picture of each type of computer and paste them here. ...read more.

Middle

Microphone A microphone, sometimes referred to as a mike or mic It's used in many applications such as telephones, tape recorders, hearing aids, Scanner A scanner is a device that analyzes images, printed text, or handwriting, or an object. Its used to input pictures or texts. Digital Camera A digital camera is an electronic device used to take and store photographs digitally. Webcam A webcam is small camera, it could used record or see each other through it. Digitiser Sensor A sensor is a type of transducer. Sensors are used in everyday life. Applications include automobiles, machines, medicine and industry. Touchscreen A touchscreen is display overlays which have the ability to display and receive information on the same screen. Light Pen A Light Pen is a pointing device shaped like a pen. It allows the user to point to displayed objects, or draw on the screen. 1.5.1 What does "output" mean? Output is the information the computer gives back after processing. 1.5.2 From your list of peripherals, which ones are output devices? Print, speaker, Plotter, screen. ...read more.

Conclusion

= 1 kilobyte 1000 kilobyte bytes = 1 megabyte 1000 megabytes = 1 gigabytes 1000 gigabytes = 1 _____________ 1.6.13 Look at the following table about Backing Storage. Fill in the blanks. Name of device Volatile? y/n Storage Capacity Optical or Magnetic? Read/ Write? Other (speed/ cost / use) Floppy Disk Drive N 1.44 Mb Magnetic Read + Write 21.5 p Hard Disk Drive N 40 Gb Magnetic Read + Write 0.15 p stores data on one or more rigid, flat, disks Magnetic Tape N Magnetic Read only Used to back up data stored on hard disk CD ROM Y About 675 Mb optical Read only Uses to store computer data. CD - R Y Optical Write once read many Stores audio CD - RW Y About 670 Mb optical Read + Write creates data and audio CDs. DVD Y 4.7 Gb optical Read only Stores & compress video data DVD-RW Y 1.46 Gb optical Read +write Uses to hold data that can be rewritten. ?? ?? ?? ?? ICT GCSE Page 1 Hardware Components Worksheet ...read more.

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