| A | B |
| CPU | Central Processing Unit |
| RAM | Random Access Memory |
| HDA | Hard Drive Assembly |
| IDE | Integrated Device Electronics |
| SCSI | Small Computer System Interface |
| BIT | Binary Digit |
| CD-ROM | Compact Disc - Read Only Memory |
| ROM | Read Only Memory |
| HDD | Hard Disk Drive |
| DVD | Digital Video Disc |
| FDD | Floppy Disk Drive |
| DMA | Direct Memory Access |
| BIOS | Basic Input/Output System |
| SIMM | Single In-Line Memory Module |
| DIMM | Dual In-Line Memory Module |
| POST | Power On Self Test |
| FAT | File Allocation Table |
| ESD | ElectroStatic Discharge |
| AMP | Ampere |
| CMOS | Complementary Metal-Oxide Semiconductor |