Input The computer collectes information or instructions from you Storage The computer saves-stores-information or instructions in its memory Processing The computer interprets and processes the data you input. Output The computer displays or produces information that has been processed. Power Supply brings the electricity to the computer through the power cord. Motherboard the main circuit board of the computer to which all components are attached. Central Processing Unit (CPU) the CPU is the main computer chip that processes instructions, process data, and manages the flow of information in the computer (also called the microprocessor). External Cache memory that is external to he CPU and is used for high-speed storage of recently used information Internal Cache memory that is inside the CPU that is the first plae the CPU looks to find recently used data or some instructions. Expansion Slots sockets in the motherdoard into which expansion cards can be added for additional memory or peripheral devices Hard Drive a disk drive that holds, reads from, and writes to the hard disk. Storage Devices spaces in the computer case where disk drives are housed. BUS a set of conductive wires that transports data among the components of the computer through electronic path. Random Access Memory (RAM) is temporary memory that stores information for a length of time a computer is left running. (User memory) Read Only Memory (ROM) is computer memory on which information has been stored at the time of manufacture (Factory memory) Binary Code the fundamental language code that the computer understands, is represented by a series of 0's and 1's. bit binary digit - is thesmallest unit of data a computer can use byte is the unit of memory needed to store one character such as a letter, number or punctuation mark. (8 bits equal 1 byte) Monitors devices that provide a visual display on a screen Modem devices that allows a computer to transmit data over telephone line by converting digital signals to analog signals and vice versa Expansion Cards contains chips that add new features to a computer Printers devices that print text or illustrations on paper, providing hard copy for users Pointing Devices controls the movement of a cursor or pointer on a display screen Keyboards consists ofletters, numbers, and special character, function, and control keys that enable users to enter data into a computer Speakers devices that allow the output of sound from a computer Microphone used to input sound to a computer for coive recordings and for having conversations over the internet (VOIP) Scanners devices that look and work much lilke a photocopier Webcam devices connected to coputer that can take pictures at defined time interval Software a set of electronic instructions that tell a computer what to do Local Area Network (LAN) consists of a group of networked computers that are all located in one building Wide Area Network (WAN) a group of networked computers located in a variety of locations in a large geographic area Operatins System Software (OS) controls the overall activity of a computer (AKA platform) Application Software designed to allow users to perform/apply a specific task (AKA program) Data Encryption performed by special software that protects information transmitted between computers by scrambling the signal so that only the sender and intended receiver can interpret receiver can interpret the signal Firewall software that prevents other computer users or hackers from gaining access to the informationon your computer while you are online Computer Viruses are programs that insert themselves into program file and boot sectors Hackers people who gain unauthorized access to computer systems usually for the purpose of stealing or corrupting information Key words for Chapter 2
Math - Chapter 1 
BTT - Ethics and Legal 