Check your computer's history by accessing the control panel from the start menu, entering administrative tools and then accessing the files you need. There is no need for additional tools or software to check this history.
A:The four main components in a computer are the central processing unit, the random access memory, the motherboard and the hard drive. These components are responsible for a computer's primary functions, including processing software instructions, storing programs and transferring information.
A:Backing storage refers to any computer storage media besides the internal memory. When a computer restarts or loses power, it clears the internal memory. Backing storage retains data for an indefinite period even without power. Common backing storage devices include internal hard drives, external hard drives, USB flash drives, network drives, DVDs, CDs and magnetic tape.
A:A word processor is a software application that creates, stores and prints documents. Word processors are categorized as application software created to accomplish specific tasks as needed by the user.
A:The Michelangelo virus was a boot-sector computer virus that was spread through infected floppy disks. The virus copied itself if an infected floppy disk was left overnight inside a computer. At restart, the computer then booted up the floppy disk and copied the virus to the hard drive.
A:A computer processing cycle refers to the processes that take place in a computer from the time data is entered into the computer through an input device to the time that results are presented to the end user for consumption. There are four basic steps that make the computer processing cycle.
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:Remote controlled toys are typically controlled by a transmitter, which sends a signal over a frequency to the receiver that sits in the toy being controlled. The transmitter has a power source, usually a battery, which powers the transmitter.
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:For a laptop using the Windows operating system, enter the control panel, click on the Regional and Language Options button, and proceed to change the language under the Keyboards and Languages tab. The selection changes the display language. Change your input language on the language bar to complete the process.
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.
A:Transmission media is the material pathway that connects computers, different kinds of devices and people on a network. It can be compared to a superhighway carrying lots of information. Transmission media uses cables or electromagnetic signals to transmit data.
A:Inkjet printers create images by shooting drops of ink onto paper as dictated by a computer, while laser printers use a xerographic process in which an image is digitally scanned by a laser, then transferred to paper. It is important to consider the advantages and disadvantages of both types when shopping for a printer.
A:The modern keyboard is not arranged in alphabetical order because millions of users have already learned the QWERTY keyboard layout, which is named after the first six letters in the top row of keys. The reason behind the development of the QWERTY layout as opposed to an alphabetical layout is debated, but two primary theories are accepted explanations.
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:The basic difference between analog and digital computers lies in the different approaches they take to handling data. Analog computers are able to deal with continuously varying inputs for complex phenomena such as voltage changes and temperature fluctuations. Digital computers must have their inputs reduced to a simple binary language in order to accurately model the world.