Eagle Challenge Google Classroom 5 Questions

Chapter 3 Computer Components The Computer Continuum

●Many people believe that knowing how to use a computer is one of the basic skills needed to succeed in the workplace. ●In order to use the computer it is necessary to understand how the computer works. Basic Skills…

Basic Functions of a Computer Chapter 3 Basic Functions of a Computer Storage (Memory) Input Output Processing The Computer Continuum

Input Devices Allow you to enter data into the computer Chapter 3 Input Devices Allow you to enter data into the computer Keyboard (most common) Mouse Voice recognition devices Scanner Digital camera Touch Screen The Computer Continuum

Output Devices Ability to read/see/use what the computer is doing Chapter 3 Output Devices Ability to read/see/use what the computer is doing Monitor CRT LCD Printer Dot Matrix Ink Jet Laser Jet Speakers Headphones The Computer Continuum

Chapter 3 Connecting Peripheral Device: A piece of hardware outside the main computer Keyboard Printer Scanner Port: The pathway for data to go into and out of the computer from the peripheral devices Device Driver: Software that will allow the computer to communicate with a peripheral device The Computer Continuum

Processing The Central Processing Unit ( CPU): Chapter 3 Processing The Central Processing Unit ( CPU): Often referred to as the “brain” of the computer. Responsible for controlling all activities of the computer system. Motherboard: The place where most of the electronics including the CPU are mounted. Primary storage or memory: Is where the data and program that are currently in operation or being accessed are stored during use. Two types: RAM (non-permanent) ROM (permanent) The Computer Continuum

Storage Common storage devices are: Past storage devices: Hard Drive Chapter 3 Storage Common storage devices are: Hard Drive CD / DVD CDR – Compact disc recordable CDRW – Compact disc rewriteable USB Drives (aka: Jump Drive, Flash Drive, Thumb Drive) Memory Cards (digital cameras) Past storage devices: Punched paper tape/ cards Floppy disk Zip disk The Computer Continuum

Chapter 3 Storage Cont’d. Capacity - The amount of information that can be stored on the device Unit Description Approximate Size 1 bit 1 binary digit 1 byte 8 bits 1 character 1 kilobyte 1,024 bytes 1/2 page, double spaced 1 megabyte 1,048,576 bytes 500,000 pages (1 million bytes) 1 gigabyte 1,073,741,824 bytes 5 million pages (1 billion bytes) 1 terabyte 1 trillion bytes 5 billion pages The Computer Continuum

Software System Software – your computer is controlled by the system software Windows XP Vista Windows 7 OS X Application Software – programs that are designed to preform a basic function Word processing Database Spreadsheet Desktop publishing Presentations