iCEV - BIM 1 - Introduction to Computers 100% Correct

iCEV - BIM 1 - Introduction to Computers 100% Correct Personal Computer (PC) computer designed for general use by a single person Light-Emitting Diode (LED) semiconductor light source used in various applications; in the world of computers, LED technology is used to make optical mouses and LED displays Touchpad computer pointing device which takes advantage of a tactile sensor to detect a user's finger movement Liquid Crystal Display (LCD) thin, light electronic display which employs the light modulating properties of liquid crystals Universal Serial Bus (USB) connector interface designed to connect computer and peripheral devices, such as printers, mouses, keyboards, USB flash drives and external hard drives Motherboard main circuit board inside personal computers which holds the majority of computer components and provides connectors for peripherals Central Processing Unit (CPU) microprocessor which calculates all the data going through a personal computer Clock Rate common measurement of CPU speed; tells how fast the CPU can process data; the higher the clock rate, the faster the CPU Megahertz (MHz) unit of measurement of CPU clock rate; one megahertz refers to a clock rate of one million cycles per second Gigahertz (GHz) unit of measurement of CPU clock rate; one gigahertz refers to a clock rate of one billion cycles per second Random Access Memory (RAM) type of computer memory, which temporarily stores computer information such as the operating system, application programs and data so they can be immediately accessed by the CPU Binary Digit (Bit) smallest unit of computer storage capacity Read-Only Memory (ROM) type of computer memory which stores the Basic Input/Output System (BIOS); data stored in ROM cannot be changed Basic Input/Output System (BIOS) built-in program which initializes computer hardware and launches the operating system when the computer starts Serial Advanced Technology Attachment (SATA) type of cable inside the computer connecting the motherboard and internal storage devices, such as the hard drive, CD- or DVD- ROM Compact Disc Read-Only Memory (CD-ROM) pre-pressed compact disc storage in which data can only be accessed, not modified Digital Video Disc Read-Only Memory (DVD-ROM) high capacity optical disc storage, in which data can only be read, not written Driver computer program allowing the computer to communicate with a hardware device Power Supply computer hardware converting alternating current or AC electric power to a low-voltage power for the internal components of the computer Hard Drive main storage device of a computer; commonly referred as an internal device and used to permanently store data External Hard Drive removable hard drive located outside of the main computer tower Input Device any piece of computer hardware used to provide data to the computer Output Device any piece of computer