CompTIA® Server+ : Difference
Between Memory Types , Different Chassis Types
SATA (Serial ATA)
Serial ATA (SATA) transfers data in a half-duplex
channel at 1.5 Gbps With SATA II, introduced in
2003, speed was increased to 3 Gbps.
SATA drops the master/slave shared bus of Parallel
ATA, giving each device a dedicated cable and dedicated
SATA allows hot swapping, whereas Parallel ATA
SATA cables use 7-pin, and can be up to 1 m (39
in) long, PATA ribbon cables, in comparison, carry
either 40- or 80-conductor wires and are limited
to .46 m (18 in) in length.
SATA drives may be plugged into Serial Attached
SCSI (SAS) controllers and communicate on the same
physical cable as native SAS disks.
The power connector for SATA is completely different
from that of PATA. While SATA uses 15-pin connector,
PATA uses 4-pin Molex connector. Note that multiple
pins are used for carrying same voltage in SATA.
PATA : Parallel advanced technology
attachment (originally called ATA and sometimes known
as IDE or ATAPI) was the most dominant desktop computer
storage interface from the late 1980s until recently,
when the SATA interface took over. PATA hard drives
are still being utilized today, especially in external
hard drive boxes, but they're becoming rare. Some cheaper
high-end server storage devices have also used PATA.
Like SCSI, PATA has also gone through many revisions.
The most recent version of PATA is UDMA/133 which supports
a throughput of 133 MB/s.
1.2 Deploy different chassis types
and the appropriate components
Cooling : The cooling methods used in
PCs range from simple fan exhaust to pump out hot hair to
complicated systems like Heat pipes and Peltier coolers.