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Hard Drive

A hard disk drive (sometimes abbreviated as "Hard drive," "HD", or "HDD") is adata storage device. The hard disk was first introduced on September 13, 1956 and consists of one or more platters inside of an air-sealed casing. internal hard disks reside in a drive bay and connect to the motherboard using an ATA, SCSI, or SATAcable, and are powered by a connection to the PSU (power supply unit). Below is a picture of what the inside of a hard drive looks like for a desktop and laptop hard drive.

Touch Screem

Historically, the touchscreen sensor and its accompanying controller-based firmware have been made available by a wide array of after-market system integrators, and not by display, chip, or motherboard manufacturers. Display manufacturers and chip manufacturers worldwide have acknowledged the trend toward acceptance of touchscreens as a highly desirable user interface component and have begun to integrate touchscreens into the fundamental design of their products.


A monitor or a display is an electronic visual display for computers. The monitor comprises the display device, circuitry and an enclosure. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) thin panel, while older monitors used a cathode ray tube (CRT) about as deep as the screen size.