An optical cable is used to transfer signals using light through thin, flexible glass fibers known as optical fibers. This method of data transmission is extremely fast because light travels faster than anything else in the known universe.
A:Microprocessors are used in servers, desktop computers, laptops and mobile devices. They are popular in embedded devices, which traditionally use microcontrollers. Microprocessors were named to set them apart from larger processors used in the middle of the 20th century.
A:Input, process, output (IPO), is described as putting information into the system, doing something with the information and then displaying the results. IPO is a computer model that all processes in a computer must follow.
A:Regarding the affects computers have had on society, there is evidence of positive effects such as instant availability of information and access to business services, and negative effects such as increased criminal activity and information dependence. Computers and technology have become a standard component in the lives of most people today and present a variety of benefits and challenges.
A:An optical cable is used to transfer signals using light through thin, flexible glass fibers known as optical fibers. This method of data transmission is extremely fast because light travels faster than anything else in the known universe.
A:The purpose of a computer monitor is to display text and graphics produced by computer programs and to provide a visual interface for computer users. Monitors look like television sets and attach to the main computer unit through a cable.
A:A computer database is a huge compilation of electronic files stored at a single location that is designed and modeled to support processes that require storage and retrieval of relevant information without a lot of work to the user. Computer databases are generally run and managed by specially designed applications known as database management systems software. These management systems allow users to add, edit, manipulate and store data as needed.
A:The main functions of a computer are to receive, manipulate, display and store data. These basic functions are performed by commands that the computer receives either by a program or a human user. The commands that the computer receives are known as raw data. After the raw data is processed by the computer, the data that the computer displays is known as information.
A:A computer processor, also known as a microprocessor or central processing unit (CPU), is a component in a computer system that functions as the brains of a computer. It is mainly responsible for processing instructions of a computer program and carrying out computer operations.
A:Robots are used for a variety of purposes, including welding, handling chemicals, marine exploration and space missions. Advanced robots are designed to serve and assist people. There are other robots that mow lawns and vacuum floors.
A:A computer's processor is the control center for the computer, and it carries out the computations that allow the computer to function. The circuits in this central processing unit (or CPU) send commands to the other components of the computer to run programs, accept input and produce output.
A:For a wired or wireless mouse, unplug the USB cable, or plug and reconnect it to correct the problem. Unfreeze a laptop mouse by enabling the touchpad. To do this, you will use the Fn key and the Touchpad key.
A:Random Access Memory, or RAM, is used by computers to store and access information using a random order. This resource provides a temporary way for computers to process electronic data, while making computers more responsive and helping operate memory-intensive programs. RAM chips are only capable of storing and accessing information when electrical power is present.
A:The motherboard of a computer is typically located in the bottom of the computer housing. The motherboard is a piece of plastic or fiberglass that holds various circuits, switches and electronic components. Among other functions, the motherboard allocates memory and processor capacity to various functions of the computer. It also connects to various hardware, such as sound cards and network cards, to allow them to communicate.
A:Computer processors perform calculations, while computer memory holds the information that processors access directly. Memory is sometimes used to refer to storage. In general, however, computer memory means computer RAM, which is an acronym for "random access memory."
A:Technology is the application of scientific knowledge to human life. It involves using machines, tools, methods, systems and procedures to solve problems. In addition to humans, other species of animals, such as apes and dolphins, utilize technology and transfer this knowledge from generation to generation. Technology has an immense influence on the development of human society; there are various and conflicting opinions regarding the role and limits of technology.
A:Examples of computer hardware include central processing units, motherboards, random access memory, video cards, power supplies, hard drives, optical drives, keyboards, monitors, mice and speakers. Computer hardware is all the physical components of a computer as opposed to the digital components, such as software.
A:A modem is an external or internal device thats function is to transmit digital data over communication lines. Traditional modems once used frequently with dial-up networks convert analog data from telephone lines into computer digital data. Broadband modems transfer digital data between two digital devices.
A:The wafers or substrates that form the base of computer chips are made of silicon, and the metal wires used to create the layers of circuits are made of aluminum or copper. Various chemicals are used in the manufacturing process, but these are removed after performing the functions for which they are applied.
A:A mainframe is a large, powerful computer that can process requests from millions of users at the same time, whereas a microcomputer is a small computer designed to be used by one person at a time. Large organizations such as banks and government agencies use mainframe computers. Single users work with microcomputers to perform personal and work-related tasks.
A:There is no conclusive evidence to suggest that leaving a laptop on all of the time causes any damage to the system. The monitor or screen can be damaged by persistent images, but settings such as power-saving and screen-savers prevent this in long-term usage.