• Internal storage – Laptop Hard disks are physically smaller—2.5 inch (60 mm) or 1.8 inch (46 mm) —compared to desktop 3.5 inch (90 mm) drives. Some new laptops employ more expensive, but faster, lighter and power-efficient Flash memory-based SSDs instead. Currently, 250 to 320 GB sizes are common for laptop hard disks (64 to 128 GB for SSDs).
• Input – A pointing stick, touchpad or both are used to control the position of the cursor on the screen, and an integrated keyboard is used for typing. External keyboard and mouse may be connected using USB or PS/2 (if present).
• Ports – several USB ports, an external monitor port (VGA or DVI), audio in/out, and an Ethernet network port are found on most laptops. Less common are legacy ports such as a PS/2 keyboard/mouse port, serial port or a parallel port. S-video or composite video ports are more common on consumer-oriented notebooks.
The internal organization of the any hard disk drive consists of the following four parts primarily. They are as listed below:
the Platters, the Head Arm, the Chassis, and also the Head Actuator.
The hard disk drives are also available in two different types that is the internal and also the external hard disk drives.
The internal hard disk drives are used for the storage of the data in the computer case. There are not portable and usually are inside the case.
The external hard disk drives are portable can be connected to other computer systems as well. There is a hard casing over the hard disk.
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