Computer fundamental MCQ Questions and answers- Technical Aptitude

Data system management has long-term viability as a separate business function because an integrated database accessible to all requires independent management.

In computing, sequential access memory (SAM) is a class of data storage devices that read stored data in a sequence. This is in contrast to random access memory (RAM) where data can be accessed in any order. Sequential access devices are usually a form of magnetic storage or optical storage.

A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

Non-impact printers print the characters without using ribbons. These printers print a complete page at a time so they are also called page printers. E.g. Ink-Jet printer, Laser printer etc.

In virtual storage, program segments stored on disk during processing are called by pages. The virtual memory is divided into pages (4 kilobytes is typical). Backing each page of virtual memory is a page of real memory (called a frame) or some secondary storage, usually disk space.

Usually a special one-time operation that must be completed over a limited time period Project. A project is defined as a sequence of tasks that must be completed to attain a certain outcome.

A device or system not directly connected to the CPU is Off-line. When a computer or other device is not turned on or connected to other devices, it is said to be "off-line. "Off-line can also mean not being connected to the Internet.

The microprocessor of a computer cannot operate on any information if that information is not in its main storage. Microprocessor program execution. The instructions are stored in numbered memory locations and copied to an instruction register in the CPU, via a data bus. Here, the instruction controls the selection of the required operation within the control unit of the processor.

Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene-photo.

A binary code represents text, computer processor instructions, or any other data using a two-symbol system. The two-symbol system used is often the binary number system's 0 and 1.