computer skills for preparatory programs " applied1 track "
DESCRIPTION
Computer Skills For Preparatory Programs " Applied1 Track ". CS 051 Chapter 2. Looking at Computers: Understanding the Parts. Chapter Topics. Functions of a computer Data versus information Bits and bytes Input devices Output devices Processing Storage Ergonomics. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/1.jpg)
1
Looking at Computers: Understanding the Parts
Imam - University
Computer Skills For Preparatory Programs
"Applied1 Track"CS 051
Chapter 2
![Page 2: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/2.jpg)
2
Chapter Topics
• Functions of a computer• Data versus information• Bits and bytes• Input devices• Output devices• Processing• Storage• Ergonomics
![Page 3: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/3.jpg)
3
What Does A Computer Do?
• Computers are data processing devices.• Four major functions of a computer:
1. Gathers data (users input data).2. Processes data into information.3. Outputs data or information.4. Stores data and information.
![Page 4: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/4.jpg)
4
Data vs. Information• Data:
– Representation of a fact, figure, or idea. • Information:
– Organized, meaningful data
![Page 5: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/5.jpg)
5
Binary Language The Language of Computers
Binary Language consist of 2 digits 0 & 1. Bit:
Binary digit.0 or 1.
Byte=8 bits.Each letter, number, and character = a string of
eight 0s and 1sBytes are the basic measurement for storage in a
computer used to represent data or information
0000 1111
![Page 6: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/6.jpg)
6
How Much Is a Byte?
![Page 7: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/7.jpg)
7
Types of Computers• There are 2 Basic designs of computer:1- Notebook Computer:
also known as (laptops) is a portable computer that is powered by a battery and has keyboard, monitor..etc integrated into a single case.
2- Desktop Computer: Used at a single location (Stationary) and also
known as personal computers (PC’s).
Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall
![Page 8: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/8.jpg)
Types of Computers (conti.)
Other Types:• Mainframe: - large, expensive computers that supports hundreds of
users simultaneously. - used in insurance companies & Universities• Supercomputer:
-specially designed computers that Performs complex calculations rapidly. Such as weather forecasting.
• Embedded: Self-contained computer performing dedicated
functions such as microwave, thermostat.
Imam - University 8
![Page 9: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/9.jpg)
Computers Have 2 Main Parts
Computer
Software Hardware
Imam - University 9
![Page 10: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/10.jpg)
10
1- Computer Software
• Software: is a program that enables the
hardware to perform different tasks
software
Application software
System software
Figure 1:Software Categories
![Page 11: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/11.jpg)
Categories of Software
• Application software :is the set of programs used on a
computer to help carrying out tasks.
• System software: is the set of programs that enables
computer’s hardware devices and application software to work together.
Imam - University 11
![Page 12: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/12.jpg)
12
Hardware: • Any part of the computer you can touch.• Is the physical part of the computer system.• Computer equipment.
2- Computer Hardware
![Page 13: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/13.jpg)
What Are The Primary Components Of A Computer ?
• Input devices.• Output devices.• System Unit .• Memory.• Storage devices.
Imam - University 13
![Page 14: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/14.jpg)
14
1- Input Devices• Input Devices:
Enable the user to enter information or instructions into the computer.
• The most common input devices are• Keyboard• Mouse
• Other input devices:• Stylus• Scanner• Digital camera• Microphone
Imam - University
![Page 15: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/15.jpg)
15
Keyboards
• The QWERTY layout is standard on most PCs.
• Enhanced keyboard features include number, function, and navigation keys.
Imam - University
![Page 16: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/16.jpg)
16
Specialty Keyboards• Notebook keyboard.• PDA and Tablet PCs:
– Input data through the use of stylus.• Wireless keyboard :
– Send data to computer via Bluetooth
Imam - University
![Page 17: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/17.jpg)
17
The Mouse• Is a pointing device which is used to control the
movement of a mouse pointer on the screen to make selections from the screen.
• There are 3 types:1. Optical mouse2. Trackball3. Wireless 4. Touch pad5. Track Point
Imam - University
![Page 18: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/18.jpg)
1- Optical mouse– Use Internal sensor or laser to
detect mouse movements– Needs no mouse pad– Doesn’t need cleaning– Is more expensive
2- Trackball– Easier on wrists– Stays stationary on desk
3- Wireless – Uses radio or light waves
Imam - University 18
![Page 19: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/19.jpg)
• Laptops use:
• touch pad: – a small touch sensitive
area at the base of the keyboard.
• track point :– a small joystick on the
keyboard
Imam - University19
![Page 20: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/20.jpg)
20
Inputting Image• Scanners
– Text– Images
• Digital cameras– Images – Video
• Webcam– Live video
Flatbed scanner
Handheld scanner
Digital camera
Camcorder
Imam - University
Webcam
![Page 21: Computer Skills For Preparatory Programs " Applied1 Track "](https://reader035.vdocument.in/reader035/viewer/2022070423/56816697550346895dda7ec8/html5/thumbnails/21.jpg)
21
Inputting Sound• Microphones :used for:
– Video-conferencing– Internet phone calls– Speech recognition
Imam - University