Computer Fundamental Miscellaneous - Study Mode
[#971] The two basic types of record-access methods are:
Correct Answer
(A) sequential and random
Explanation
Solution: 1) The two basic types of record-access methods are sequential and random. 2) The terms random access and sequential access are often used to describe data files. 3) Comparing random versus sequential operations is one way of assessing application efficiency in terms of disk use.
[#972] Which functional component of a computer is responsible for the computing?
Correct Answer
(C) CPU
Explanation
Solution: A computer consists of input unit that takes input, a CPU that processes the input and an output unit that produces output. All these devices communicate with each other through a common bus.
[#973] Punched cards are associated with the name
Correct Answer
(C) Hollerith
Explanation
Solution: Herman Hollerith was an American inventor who developed an electromechanical punched card tabulator to assist in summarizing information and, later, accounting.
[#974] The light pen was developed in
Correct Answer
(C) 1955
Explanation
Solution: The first light pen was created around 1955 as part of the Whirlwind project at MIT. During the 1960s light pens were common on graphics terminals such as the IBM 2250, and were also available for the IBM 3270 text-only terminal. Source : wikipedia.org
[#975] The two main components of the CPU is
Correct Answer
(B) Control unit and ALU
Explanation
Solution: 1) It is one of the most important parts of the microprocessor as it is in charge of the entire process. 2) The control unit extracts instructions from memory and decodes them.