Chapter 1 Principles of computer Indicators l

Chapter 1 Principles of computer

Indicators. l Explain the basis of computer The role of the computer. And usefulness of computers.

Introduction l Computer : Computer equipment used in information processing has a number of features that help facilitate functions such as calculation of numbers very quickly and accurately. Lots of storage. Once saved, or separation can retrieve accurate speed capabilities of these depending on the command or program. Devices inside the computer. And external peripherals.

Principles of computer l A computer system. The basic composition of 5 major units. Main memory unit Input unit Central Processing Unit : CPU Secondary memory unit Output unit

Input Unit l Serves to store data or programs in memory and processing. Divided into 7 groups. 1. keyboard

Input Unit )continued. ( 2. Mouse (Past) - Mec-hanical mouse

Input Unit )continued. ( - Optical mouse

Input Unit )continued. ( - Wireless mouse

Input Unit )continued. ( - Foot mouse

Input Unit )continued. ( (Present) - Blue Track Mouse With Blue. Track Technology, you can use the mouse on almost any type of surface.

Input Unit )continued. ( (Present) - Laser mouse l A laser mouse is a type of computer mousing device that uses a laser beam rather than a ball to track the movement of the user's hand. Laser mice are becoming increasingly common because they are perceived to have better tracking ability. In addition, they are not as subject to gumming up and subsequent distortion of the signal as conventional ball mice. The lack of moving parts also makes them far less subject to damage.

Input Unit )continued. ( 3. Light pen

Input Unit )continued. ( 4. Track ball, track point, touch pad, joystick

Input Unit )continued. ( 5. Touch screen

Input Unit )continued. ( 6. Scanner handheld scanner, Sheet scanner , Flatbed scanner

Input Unit )continued. ( 7. Digital camera , Digital video camera

Input Unit )continued. ( 8. Audio input

Central processing unit : CPU Microprocesser Divided into 2 units. 1. Control Unit : CU 2. Arithmetic Logic Unit : ALU

Main memory or Primary storage Divided into 2 units. 1. Random access memory : RAM 2. Read only memory : ROM

Main memory or Primary storage Random access memory : RAM Served data. And programs that occur while using the computer. If a power failure or when using the computer is turned off by not recording the information data will be lost immediately.

Main memory or Primary storage Read only memory : ROM Memory is a read-only. Do read. And the data stored in the ROM memory to work. But you can not edit it.

Secondary memory unit Divided into 4 factors. 1. Hard disk

Secondary memory unit continued. 2. Magnetic tape

Secondary memory unit continued. 3. Compact Disk : CD , DVD

Secondary memory unit continued. 4. Flash memory device

Output Unit Divided into 2 units. 1. Monitor

Output Unit continued. 2. Printer 2. 1 Dot matrix printer 2. 2 Inkjet printer 2. 3 Laser printer 2. 4 Line printer iร

Output Unit continued. 3. Speaker iร

Question? 1. 2. 3. 4. 5. Computer principles how it works? Any work unit of the computer the most important why? Input any kind of device used in booking theater. And play games? Processor acts do not profit? Equipment in the unit export returns the sound is what?

Role of computer 1. Computer help facilitate daily life

Role of computer

Role of computer

Role of computer (continue) 2. Computer help meet individual needs - Movie - music - game - to send e-mail - Discussions on Internet - searching through information - knowledge exchange forum. - the Forum. - Make sure Admission. http: //entrance. bu. ac. th

Role of computer (continue) 3. Computer help meet the needs of society - Notifications, which can be found on the drug trade or the site via the Internet. http: //www. dapa. go. th/box/drug. html

Advantage of computer 1. Solve the problem

Advantage of computer (continue) 2. Create 2. 1 Microsoft Word - Create a document - Circular letter - Report - Greeting cards - Placard - Document guide

Advantage of computer (continue) 2. 2 Microsoft Excel - Calculations - Data Analysis - Graph - Chart - Table - Summary data

Advantage of computer (continue) 2. 3 Microsoft Power. Point - Power. Point slide show - Animated presentations - Presentation of sound

Advantage of computer (continue) 2. 4 Pro/desktop, Auto. CAD -A 2 -D, 3 -D piece modeling.

Advantage of computer (continue) 3. Creating entertainment - Windows Media Player - Win Amp

Advantage of computer (continue) 4. Communication - Intranet - Internet - E-Mail - Chat -Twitter - Hi 5 - Facebook

Advantage of computer (continue) 5. Search information - Find information on your computer - Find information on various storage media - Find information on the Internet Ex. E-service, E-banking, E-learning, E-Card

Question? 1. The computer has the role of how human and social? 2. What devices have a role in maintaining the safety of human life and property? 3. If you want to present in the form of a chart. Use any program to be appropriate? 4. Why does it have the computer search? 5. In the daily lives of the students involved with the computer how?