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Application Software
Application software is another type of computer software, one that is less technical than system software. Users are generally much more familiar with application software because it includes the programs that allow users to perform tasks. Some examples of commonly used application software include:
Web browsers
Word processors
Multimedia software
Spreadsheet software
Email clients
Graphics software
14. COMPUTER HARDWARE
T ask 1: Describe the picture and the functions of hardware.
Modem_( Modem is short for "Modulator-Demodulator." It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to digital data (1s and 0s) that a computer can recognize.)
Power supply unit_( A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the mains voltage.)
Graphics, Sound and Network cards_____________________________________
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Back USB connectors_( USB ports allow USB devices to be connected to each other with and transfer digital data over USB cables. They can also supply electric power across the cable to devices that need it.)
RAM_( Computer random access memory (RAM) is one of the most important components in determining your system's performance. RAM gives applications a place to store and access data on a short-term basis. It stores the information your computer is actively using so that it can be accessed quickly.)
Modem__( Modem is short for "Modulator-Demodulator." It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to digital data (1s and 0s) that a computer can recognize.)
Router_(A router is a device that connects two or more packet-switched networks or subnetworks. It serves two primary functions: managing traffic between these networks by forwarding data packets to their intended IP addresses, and allowing multiple devices to use the same Internet connection.)
CPU_(The CPU is regarded as the computer's brain. The CPU is responsible for all data processing operations. It saves information such as data, intermediate results, and instructions (program). It directs the operation of all computer components)
Mother board_( The motherboard is the backbone that ties the computer's components together at one spot and allows them to talk to each other. Without it, none of the computer pieces, such as the CPU, GPU, or hard drive, could interact. Total motherboard functionality is necessary for a computer to work well.)
Heat sink assembly_( A heat sink is a component that increases the heat flow away from a hot device. It accomplishes this task by increasing the device's working surface area and the amount of low-temperature fluid that moves across its enlarged surface area.)
Front USB and Audio connectors_( Audio connectors and video connectors are electrical or optical connectors for carrying audio or video signals. Audio interfaces or video interfaces define physical parameters and interpretation of signals.)
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Peripherals_( peripheral device, also known as peripheral, computer peripheral, input-output device, or input/output device, any of various devices (including sensors) used to enter information and instructions into a computer for storage or processing and to deliver the processed data)
Drive Bays (CD, DVD and Hard drive)____( Drive bays are most commonly used to store disk drives, although they can also be used for front-end USB ports, I/O bays, card readers, fans, fan controllers, RAID controllers, tool storage, and other uses. Some computers have a small system monitor LCD mounted in a drive bay.)
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