Computer fundamental MCQ Questions and answers- Technical Aptitude

Dot Matrix Printers prints output as dots, so it can print any shape of the character. This allows the printer to print special character, charts, graphs, etc. Dot Matrix Printers come under the category of impact printers.

The Intel 4004 is a 4-bit central processing unit released by Intel Corporation in 1971. It was the first commercially available microprocessor by Intel, and the first in a long line of Intel CPUs.
The chip design started in April 1970, when Federico Faggin joined Intel, and was completed under his leadership in January 1971. The first commercial sale of the fully operational 4004 occurred in March 1971 to Busicom Corp. of Japan for which it was originally designed and built as a custom chip.

Source : wikipedia.org

The process of storage, many psychologists use the three-stage model proposed by Richard Atkinson and Richard Shiffrin. According to this model, information is stored sequentially in three memory systems: sensory memory, short-term memory and long-term memory.

The working principles of today's computers were provided by an English mathematician Charles Babbage. Babbage is credited with inventing the first mechanical computer, the Difference Engine, that eventually led to more complex electronic designs, though all the essential ideas of modern computers are to be found in Babbage's Analytical Engine, programmed using a principle openly borrowed from the Jacquard loom.

A new technology which provides the ability to create an artificial world and have people interact with it is called virtual reality. Virtual reality (VR) allows the user to experience and interact with a computer-generated environment.

The proper definition of a modern digital computer is An electronic automated machine that can solve problems involving words and numbers. In computer science, a digital electronic computer is a computer machine which is both an electronic computer and a digital computer.

Decision Support Systems (DSS) are a class of computerized information system that support decision-making activities. DSS are interactive computer-based systems and subsystems intended to help decision makers use communications technologies, data, documents, knowledge and/or models to complete decision process tasks.

Semiconductor memory is a digital electronic semiconductor device used for digital data storage, such as computer memory. For these reasons it is used for primary storage, to hold the program and data the computer is currently working on, among other uses.

A storage device is any computing hardware that is used for storing, porting and extracting data files and objects. It can hold and store information both temporarily and permanently, and can be internal or external to a computer, server or any similar computing device.

A magnetic tape volume that is used on a data processing operation without any change to its contents is Master tape. A master tape is a tape used to record the band originally.