Computer Fundamental Miscellaneous - Study Mode

[#391] Which device of computer operation dispenses with the use of the keyboard?
Correct Answer

(C) Mouse

Explanation

Solution: Mouse : A computer mouse with the most common features: two buttons (left and right) and a scroll wheel, which can also act as a third button. A computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of a pointer on a display, which allows a smooth control of the graphical user interface. The first public demonstration of a mouse controlling a computer system was in 1968. Originally wired to a computer, many modern mouse are cordless, relying on short-range radio communication with the connected system. Mouse originally used a ball rolling on a surface to detect motion, but modern mouse often have optical sensors that have no moving parts. In addition to moving a cursor, computer mouse have one or more buttons to allow operations such as selection of a menu item on a display. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control and dimensional input.

[#392] The microcomputer, Intel MCS-80 is based on the widely used Intel
Correct Answer

(A) 8080 microprocessor

Explanation

Solution: Intel MCS-80 is based on the widely used Intel 8080 microprocessor The MCS-80 (Micro Computer Set-80) was a family of 8-bit microprocessor chipsets developed by Intel. Introduced on April, 1974, the MCS-80 featured the 8080 CPU, the forefather of all modern x86-based microprocessors.

[#393] Which is a machine-oriented high-level language for the GEC 4080 series machines.
Correct Answer

(C) Babbage

Explanation

Solution: Programming languages available included Babbage (a high-level assembly language) The GEC 4000 was a series of 16/32-bit minicomputers produced by GEC Computers Ltd. of the UK during the 1970s, 1980s and early 1990s.

[#394] A program that is employed in the development, repair or enhancement of other programs is known as
Correct Answer

(B) Software tool

Explanation

Solution: A programming tool or software development tool is a computer program that software developers use to create, repair, debug, maintain, or otherwise support other programs and applications.

[#395] Any storage device added to a computer beyond the immediately usable main storage is known as
Correct Answer

(C) Backing store

Explanation

Solution: Backing store : The term backing storage refers to any non-volatile data storage that will retain a computer's data even after the computer is powered off. Common types of backing storage devices are hard drives, SSD, external hard disk drives, optical media such as CD or DVD, and flash media such as thumbdrives and memory sticks.