3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
Hot swappable storage configuration means that you can add and remove the drives while the system is running. It’s common to use a drive chassis with two or more drives,…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
RAID configurations are an array of drives and sharing the information over the array. Some RAID configurations are useful to have in the case that a drive fails, you may…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
Flash memory is technically EEPROM (Electrically Erasable Programmable Read Only Memory). They are non-volatile memory, meaning that you can put information on the drive, disconnect it from a computer /…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
Solid state drives (SSDs) are non volatile memory. SSDs have no moving parts. SSDs provide very fast performance since there is no delay due to moving parts such as the…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
Optical drives have microscopic bumps that are read by laser beams. When you burn data to a disc, it’s not creating bumps. Rather it is darkening certain areas of the…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
RAM stands for Random Access Memory. RAM is where all of the transactions are taking place. When you use a program, the program itself and all the data associated with…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
RJ-11 For phone lines and telephone based Internet connections POTS 6 position, 2 conductor (6P2C) connector. 2 conductor means there are 2 wires in them. However, there is an RJ14…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
Adapters allow you to convert different connectors between one interface type to another as long as the interface types are electrically compatible. Adapters can also allow you to convert from…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
Common internal hard drive interfaces include IDE, SATA, or SCSI. To connect an external hard drive, you’ll probably see USB, eSATA, SCSI, or SAS interfaces. SATA SATA stands for Serial…
3. Hardware (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
Parallel cables are not included in the CompTIA A+ 220-1001 objectives, but I’ll mention it here for background. Parallel cable transmits multiple bits simultaneously. However, electrical signal interference from adjuste…