Give the long form for each of the following abbreviations and briefly explain their uses for the device they stand for 1:ATM 2:CPU 3:LCD 4:UPS ?

1: ATM stands for Automated Teller Machine. It is an electronic banking outlet that allows customers to perform various financial transactions without the need for a human teller. ATMs are commonly used to withdraw cash, deposit money, transfer funds between accounts, check account balances, and more.

2: CPU stands for Central Processing Unit. It is the primary component of a computer that performs most of the processing inside the computer. The CPU interprets and executes instructions from the computer's memory, performing basic arithmetic, logical, control, and input/output operations. It is often referred to as the "brain" of the computer.

3: LCD stands for Liquid Crystal Display. It is a flat-panel display technology commonly used in televisions, computer monitors, smartphones, and other devices. LCDs use liquid crystals to produce images by manipulating light passing through them. They are known for their thinness, low power consumption, and ability to display high-quality images.

4: UPS stands for Uninterruptible Power Supply. It is a device that provides emergency power to a load when the main power source fails or experiences a voltage drop. UPS systems typically consist of a battery or flywheel that stores electrical energy and an inverter that converts the stored energy into usable power. They are used to protect sensitive electronic equipment, such as computers, servers, and telecommunications equipment, from power outages, voltage fluctuations, and other electrical disturbances.