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ab-ch1-stack3
Question | Answer |
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magnetic hard drive | One of two technologies used by hard drives where data is stored as magnetic spots on disks that rotate at a high speed. The other technology is solid state drive (SSD). |
main board | See motherboard. |
megahertz (MHz) | One million Hz, or one million cycles per second. See hertz (Hz). |
memory | Physical microchips that can hold data and programming, located on the motherboard or expansion cards. |
microprocessor | See central processing unit (CPU). |
monitor | The most commonly used output device for displaying text and graphics on a computer. |
motherboard | The main board in the computer, Also called the system board. The CPU, ROM chips, DIMMs, RIMMs, and interface cards are plugged into the motherboard |
mouse | A pointing and input device that allows the user to move a cursor around a screen and select items with the click of a button. |
non–volatile memory | nonvolatile – Refers to a kind of RAM that is stable and can hold data as long as electricity is powering the memory. |
parallel ATA (PATA) | An older IDE cabling method that uses a 40–pin flat or round data cable or an 80–conductor cable and a 40–pin IDE connector. See also serial ATA. |
parallel port | A female 25–pin port on a computer that can transmit data in parallel, 8 bits at a time, and is usually used with a printer. The names for parallel ports are LPT1 and LPT2. |
peripheral device | Devices that communicate with the CPU but are not located directly on the motherboard, such as the monitor, floppy drive, printer, and mouse |
port | (1) As applied to services running on a computer, a number assigned to a process on a computer so that the process can be found by TCP/IP. Also called a port address or port number. |
power supply | A box inside the computer case that supplies power to the motherboard and other installed devices. Power supplies provide 3.3, 5, and 12 volts DC. Also called a power supply unit (PSU). |
primary storage | Temporary storage on the motherboard used by the CPU to process data and instructions. Memory is considered primary storage. |
printer | A peripheral output device that produces printed output to paper. Different types include dot matrix, ink–jet, and laser printers. |
processor | See central processing unit (CPU). |
program | A set of step–by–step instructions to a computer. Some are burned directly into chips, while others are stored as program files. Programs are written in languages such as Visual Basic and C++. |
protocol | A set of rules and standards that two entities use for communication. |