EmpTech SA1

• Computer is an electronic device that receives data (input), processes data, stores data, and produces a result (output).
• The two components of computer are Hardware and Software
• The Hardware is composed of: Input Devices, Output Devices, Storage Devices
• The two Software Classification are: Application Software & System Software
• Data is a collection of raw unprocessed facts, including text, numbers, sound, images, and video.
• Computer are everywhere
• Abacus is the first calculator
• Charles Babbage is the father of Computer
• Computers have been around since the late 1940s
• The actual machine—wires, transistors, and circuits—is called hardware
• Software consists of instructions or programs for controlling the computer.
• The input and output devices, such as keyboards and monitors, are types of hardware called peripherals
• Data transformed into meaningful form becomes information
• Input, processing, output, and storage (IPOS) is called the information processing cycle
• The steps in information processing cycle are input data, process data. store data and information, output information
• The first electronic computer is ENIAC
• ENIAC stands for Electronic Numerical Integrator and Computer
• Thr first commercially produced digital computer is UNIVAC
• UNIVAC stands for Universal Automatic Computer
• First Gen: Vacuum tubes
• 2nd Gen: Transistors
• 3rd gen: Integrated circuit
• 4th gen: Microprocessor chip
• 5th gen: Artificial Intelligence
• To be computer literate means that you can use today’s computers efficiently to enhance your life and the lives of those around you.
• • A digital divide is an economic gap between those who are computer literate and have access to computer technology, and those who do not.
• • Software provides the means for you to interact with the computer’s hardware.
• • A graphical user interface (GUI) displays pictures called icons that allow you to interact with data and execute commands.
• Some software uses a command line interface, which requires you to type text commands to interact with the computer.
• What are the types of user-interface?

  Command Line Interface & Graphical User Interface
• A computer relies on two types of software:

  system software and application software.
• System software runs a computer and includes the operating system and utility programs.
• An operating system is software that coordinates the resources and activities on a computer.
• • A utility program helps the operating system set up, maintain, and protect a computer.
• Application software is the software used to directly complete a specific task or to create something electronically.
• 4 types of operating system: PC, Mobile Computing Devices, Servers, Devices other than computer
• Personal or desktop operating systems are installed on a single computer and are called single-user operating systems because one user interacts with the operating system at a time.
• They are multitasking operating systems, which means they let you work with more than one program at a time.
• The three most popular personal computer operating systems are Windows, Mac OS, and Linux.
• • Windows became widespread because it ran on inexpensive personal computers created by a variety of computer manufacturers.