Computer fundamental MCQ Questions and answers- Technical Aptitude

Pictures or a drawing, typically displayed on a VDU to allow users to select program options is called Icons. Stands for "Visual Display Unit". A VDU displays images generated by a computer or other electronic device.

A monitor looks like a TV set but it does not Receive TV signals. A CRT (or the Cathode Ray Tube) Monitor looks like a television ideally. The flat panel monitors are thinner and lighter in comparison.

The earliest device that qualifies as a digital computer is Abacus. Abacus can be learned at any age, the obvious benefits are seen when a kid starts learning abacus during early years of education. It is important that the student can count up to 100 prior joining for Abacus training.

The megabyte is a multiple of the unit byte for digital information. Its recommended unit symbol is MB. The unit prefix mega is a multiplier of 1000000 (10⁶) in the International System of Units (SI). Therefore, one megabyte is one million bytes of information.

Variables are usually stored in RAM. Most variables stored in the array (i.e., in main memory) are larger than one byte, so the address of each variable is the index of the first byte of that variable. Viewing main memory as an array of bytes. Main memory, often called RAM, can be visualized as a contiguous array of bytes.

The first IBM PC, formally known as the IBM Model 5150, was based on a 4.77 MHz Intel 8088 microprocessor and used Microsoft´s MS-DOS operating system. The IBM PC revolutionized business computing by becoming the first PC to gain widespread adoption by industry.

Data tablet a graphical input device that returns the position of a puck or stylus as it is moved over a flat surface. The term was originally a trade name used by Sylvania to describe a product of this type. A dictionary of computing.

The booting procedure starts with the hardware procedures and then continues onto the software procedures that are stored in the main memory. The bootstrapping process involves self-tests, loading BIOS, configuration settings, hypervisor, operating system etc.

A terminal (monitor and keyboard) that contains processing power. Intelligent terminals include memory and a processor to perform special display operations. In contrast, a dumb terminal has no processing capabilities; it must rely entirely on the central computer. A smart terminal has some processing capabilities, but not as much as an intelligent terminal.

Source : webopedia.com

The expansion bus provides a path between the CPU and peripheral devices, which are connected via interface cards. Peripherals are any of the many external devices that connect to your computer. Obviously, the processor must have some way of talking to the peripherals to make them useful. The communication channel between the processor and the peripherals is called a bus.