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 does
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.