Lenovo ThinkSystem HR630X User Manual page 109

Appendix ‐ Terms and Abbreviations
BIOS
Basic Input/Output
System BPS
Bits per second.
CMOS
Complementary Metal Oxide Semiconductor
COM serial portMS-DOS supports up to four serial ports. The default interrupt for COM1 and COM3
is IRQ4; the default interrupt for COM2 and COM 4 is IRQ3.
CPU
Central Processing
Unit DIMM
Dual In-line Memory
Module DMA
Direct Memory Access The DMA channel allows certain types of data to be communicated directly between the RAM and device, while bypassing
the microprocessor.
DRAM
Dynamic Random Access Memory RAMs for computers are usually in the form of DRAM
chips. ECC
Error Checking and Correction
EMC
Electromagnetic
Compatibility EMI
Electromagnetic
Interference ESD
Electrostatic
Discharge FAT
File Allocation
Table FTP
File Transfer
Protocol GB
Gigabyte 1 GB is equivalent to 1024 MB or 1,073,741,824 bytes
HZ
Hertz
I/O
Input/Output
I2O
Intelligent
Input/Output IP
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