Revision.1 Computer Science Notes PDF

Revision.1 Ms.Alaa Anwar Altaluoni 1st semester, 2024-2025  Revision| 1: Computer: Electrical device, operating under the control of instructions stored in its memory 2: Computer: Machine that changes information from one form to another by performing basic actio...

Revision.1 Ms.Alaa Anwar Altaluoni 1st semester, 2024-2025  Revision| 1: Computer: Electrical device, operating under the control of instructions stored in its memory 2: Computer: Machine that changes information from one form to another by performing basic actions 3: Basic actions of Computer: Input Processing Storage Output www.vision.edu.sa  Revision| 4: Computer refer to: C: common, O: operating, M: machine, P: purposely, U: used for, T: technology, E: education, R: research.  Common operating machine purposely used for technology, education and research. 5: First generation of Computers used Vacuum tube as electronic technology 6: Second generation of Computers used Transistors as electronic technology 7: Third generation of Computers used Integrated Circuit as electronic technology 8: Fourth generation of Computers used Microprocessors as electronic technology www.vision.edu.sa  Revision| 9: Fifth generation of Computers used Logic programming and parallel computing 10: Fourth generation: PC emerged, Microsoft launched 11: Fifth generation: Internet Exist, AI introduce 12: Sixth generation of Computers AI-powered technologies are integrated into various aspects of our lives. 13: Basic elements of Computer: User Software Hardware Electricity www.vision.edu.sa  Revision| 14: Software: the programs running the computer 15: Basic parts of Hardware: C.P.U Monitors Keyboard Mouse Printer Speakers 16: Computer case contain: Central Processor Unit (C.P.U), Motherboard, Ram (Random Access Memory), Hard Drive www.vision.edu.sa  Revision| 17: the brain of Computer: CPU 18: CPU function: Receives and executes instruction from software activated by the user 19: Computer case contains: Central Processor Unit (C.P.U) Motherboard Ram (Random Access Memory) Hard Drive 20: Hardware contains 2 memories: ROM (Read Only Memory) RAM (Random Access Memory) www.vision.edu.sa  Revision| 21: The RAM function: Allow data items to be read and written in the same amount of time regardless of the order 22: Computing system: Used to solve problems and interact with it’s environment 23: Computing system contains: Input Processing Output 24: Computing system layers: Each layers plays a specific role in the overall design of the system www.vision.edu.sa  Revision| 25: The Innermost Computing layer: Information 26: The Information Layer function: Reflect the way to represent the information on the computer system 27: The Information stored in computer as: Binary digit system 28: The architecture implemented in Hardware: Von Neumann Architecture 29: Von Neumann Architecture in hardware contains: Input CPU and main memory Output www.vision.edu.sa  Revision| 30: Arithmetic /logic Unit (ALU) function: Perform arithmetic operation Perform logic operation 31: Ram (Random Access Memory) function: Determine how fast the computer performs the task 32: Input Device function: Any device which data and program from outside are entered into the computer 33: Output Device function: Any device which stored in the computer memory are available to be outside www.vision.edu.sa  Revision| 34: System software layer contains: Operating system Development Software Application Software 35: Operating system: Program controls the execution of hardware component 36: Operating system examples: Windows, Mac OS, Linux 37: Operating system function: Allow application software to access system resources Manage computer resources 38: Microsoft Edge: internet browser from Windows www.vision.edu.sa  Revision| 39: Development or programming software: Tools used for development and programing of other programs 40: Development or programming software examples: Microsoft.Net, JAVA 41: Application Software: All other software, which performs a wide variety of tasks 42: Application Software examples: web browser, games 43: Windows: An operating system manages all the tasks of the hardware and software on a computer 44: Cortana: virtual assistant from Windows www.vision.edu.sa  Revision| 45: One of the applications of Microsoft Office 365: Word Excel Power points 46: The Word: Program is used for creating and printing text documents 47: The page in the Word program named: Page 48: The file extension of Word: doc & docx 49: The online Word source named: google document www.vision.edu.sa  Revision| 50: The Power Points: Program is used to organize and display information visually 51: The page in the Power Points program named: Slide 52: the file extension of Power Points: ppt & pptx 53: The online Power Points source named: google slide 54: The Excel: Program is used to process information in tables 55: The page in the Excel program named: worksheet www.vision.edu.sa  Revision| 56: The online Excel source named: google sheet 57: the file extension of Excel: xls & xlsx 58: The function in Excel: formula built-in for performing calculation 59: the short cut in Microsoft Office: Ctrl+ C: Copy Ctrl+ X: Cut Ctrl+ V: Paste Ctrl+ S: Save Ctrl+ P: Print 60: Study Hard  www.vision.edu.sa www.vision.edu.sa