Memory
Terms
undefined, object
copy deck
- dual in-line memory module (DIMM)
- a memory chip in which the edge connectors are located directly across the circuit board from each other and do not connect electronically
- dynamic RAM (DRAM)
- a type of integrated circuit that utilizes capacitors to assist in storing data in the transistors
- erasable programmable read-only memory (EPROM)
- a ROM chip that can only be erased by exposure to ultraviolet light
- extended memory standard (XMS)
- All of the PC's memory beyond the first 1MB when the CPU is running in real mode
- flash memory
- memory type that stores data but does not require a power source to retain the data
- random access memory (RAM)
- a volatile memory system into which programs and data are loaded. When the power is turned off, all programs and data stored here are lost
- heap
- How Windows refers to the entire memory available
- buffer
- an area to temporarily store data before transferring it to a device
- electrically erasable programmable read-only memory (EEPROM)
- a ROM chip that can be erased using a piece of software called a "flasher"
- static RAM (SRAM)
- an integrated circuit using integrated flip-flop components. Very fast; does not use a capacitor to hold the data
- flash ROM
- ROM that can be erased in blocks by using a high voltage
- programmable read-only memory (PROM)
- non-volatile memory that can be erased by exposing the memory chip to high-intensity ultraviolet light
- hot swap
- to plug in or unplug a device while the PC is running
- error code correction (ECC)
- another from of data integrity checking beside parity checking
- odd parity checking
- a data integrity checking method in which every time the number of bits counted is odd, an extra bit of data is transmitted as a 1 to make the count even
- even parity checking
- a data integrity checking method in which every time the number of bits counted is even, an extra bit of data is transmitted as a 1 to make the count odd
- memory management software
- software designed to efficiently utilize valuable memory resources
- single inline package (SIP)
- a memory chip containing a single row of connections that run along the legth of the chip
- high memory area
- The first 64KB of the extended memory area
- upper memory
- Term for a PC's memory range between 640K and 1MB
- conventional memory
- the first 640K of a PC's RAM
- read only memory (ROM)
- memory that stores information permanently
- registered memory
- a memory module that has the driver and synchronizing electronics available as part of the unit
- nanosecond (ns)
- one billionth of a second
- safe mode
- a mode that boots the computer without some drivers and programs to allow for troubleshooting
- expanded memory standard (EMS)
- an early attempt to move past the 1MB memory barrier. Used expansion slots to add additional RAM
- single inline memory module (SIMM)
- a memory module containing a row of DIP memory chips mounted on a circuit board
- fake parity
- when the parity bit is always set to 1 regardless of the true number of ones contained in the byte
- Dual in-line package (DIP)
- a memory chip that has two rows of connections, one row per side of the chip
- parity
- the counting of either odd or even bits being transmitted