Transcript 204111 Computer & Programming

Introduction to
Computer and Programming
Computer Engineering Department
Kasetsart University, Bangkok, THAILAND
1st Semester 2006
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Instructor Information
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Instructor: สิ ทธิชยั ศรี อ่อน (Sitichai Srioon)
Email Address: [email protected]
Website: http://www.cpe.ku.ac.th/~scs
Office: Building 15 (Computer Engineering
Building) Room 414
TA (Teaching Assistant): Will be announced
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Outline
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Introduction to Computer
Programming Languages
How to Run a Program
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Computer Categories
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Personal Computer (PC)
Desktop Computer
 Notebook (Laptop)
 PDA – Personal Digital Assistant (Palmtop)
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High Computation Power Computer
Workstation
 Supercomputer  Mainframe
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What is a Computer?
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Computer is a device with sophisticated
electronic parts that
operates under the control of instructions (software)
that is stored in its own memory,
 accepts data (input),
 manipulates data (process),
 and then produces information (output) from the
processing unit
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Computer Components
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Input Devices
Output Devices
Computing & Processing Unit
Storage Devices
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Computer Components
Secondary
Memory
Main
Memory
HD
CPU
Input
Devices
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Output Devices
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Computer Components
Monitor
(output)
Speaker
(output)
System unit
(processor, memory…)
Printer
(output)
CD, Hard disk
(Storage)
Scanner
(input)
Keyboard
(input)
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Mouse
(input)
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Application Software
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Consists of programs that tell a computer how to
produce information
Some examples:
Word processing
 Electronic spreadsheet
 Database
 Presentation graphics
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Other Applications
Finite Element Analysis
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Computer-Aided Design
Graphing Tool
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Computer Memory
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I - Main Memory
II - Secondary Memory
Main
Memory
CPU
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I - Main Memory
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Can be separated into 2 Categories
RAM (Random Access Memory)
 ROM (Read Only Memory)
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Memory Cell -> Byte -> Bit
1 byte = 8 bits
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II - Secondary Memory
Floppy disk (1.44 MB)
 Hard disk (80 GB, 100 GB)
 CD-ROM (700 MB)/DVD-ROM (4.7/8.5 GB)
 Flash Memory (Compact Flash, MMC, SD)
Etc…
1 KB (KiloBytes) = 210 = 1024 bytes
1 MB (MegaBytes) = 220 = 1,048,576 bytes
1 GB (GigaBytes) = 230 = 1,073,741,824 bytes
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Main Memory
VS Secondary Memory
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Main Memory
 Much faster
 More expensive
 Volatile
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Secondary
Memory
 Slower
 Less expensive
 Permanent
(Non-Volatile)
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Computer Components (Revisit)
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Computer Specification
Intel® Pentium® D Processors 820 Dual Core
(2x1MB L2 cache, 800MHz FSB)
 Genuine Windows® XP Professional
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Up to 4 GB of 533MHz Dual Channel Shared2
DDR2 SDRAM
Intel® Graphics Media Accelerator 950 (GMA950)
 Integrated Broadcom® Gigabit4 LOM (LAN on
Motherboard)
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Outline
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Introduction to Computer
Programming Languages
How to Run a Program
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Programming Languages
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Machine Language
Assembly Language
High-Level Language
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High-level vs Assembly
vs Machine Language
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High-level Language
SUM = A * 2 + ALPHA/3;
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Assembly Language
MULL3
DIVL3
ADDL3
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A, #2, AX
#3, ALPHA, BX
AX, BX, SUM
Machine Language
00011000011
00011001111
10011000111
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High-Level Languages
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Procedural Language
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Object-Oriented Language
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C++
Java
C#
Functional Language
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Fortran
Cobol
Basic
C
Pascal
Lisp
Logic Language
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Prolog
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Translators
Language
Translator
Assembly
Assembler
High-Level
Languages
Compilers
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Translation Process (C#)
Input
prog.cs
Source file
Compiler
(on computer)
prog.exe
Executable file
Output
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Outline
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Introduction to Computer
Programming Languages
How to Run a Program
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How to run program?
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After boot Process
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May be Windows XP (Operating System) has been
loaded into Main Memory
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User tell OS to load program prog
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OS Load program prog from the hard disk
into the memory
OS run program from the memory
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Summary
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Computer Basic
Programming Language
Running a Program
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To Do
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Add yourself on M@xLearn
Go to http://course.ku.ac.th
 Section 5
 Instructor: Sitichai Srioon
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Upload your picture
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Questions?
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