128. A computer-controlled device for training exercises that duplicates the work environment is a:
A. simulator
B. duplicator
C. trainer
D. COM device
✅ The correct answer is option A.
130. A collection of interrelated file in computer is a-
A. File manager
B. Field
C. Record
D. Database
✅ The correct answer is option D.
131. A URL is:
A. A computer program
B. A type of web server
C. The address of a document or page on the world wide web
D. An acronym for unlimited resources for learning
✅ The correct answer is option C.
134. An output device that uses words or messages recorded on a magnetic medium to produce audio response is
A. Magnetic tape
B. Voice response unit
C. Voice recognition unit
D. Voice band
✅ The correct answer is option B.
137. What type of magnetic material is normally used in bubble memories?
A. Magnetic core
B. Cobalt
C. Garnet
D. Metallic
✅ The correct answer is option C.
140. The most recent version of the Mac OS is based on the ……… operating system.
A. Windows
B. Linux
C. Unix
D. CMOS
✅ The correct answer is option C.
143. The accuracy of the floating point numbers representable in two 16 bit words of a computer is approximately
A. 16 digits
B. 6 digits
C. 4 digits
D. All of the above
✅ The correct answer is option B.
145. What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?
A. Bus control
B. Interrupts
C. Bus arbitration
D. Status
✅ The correct answer is option C.
148. Who developed the first personal computer spreadsheet package called Visicalc?
A. Niklaus Wirth
B. Dan Bricklin
C. Bob Frankston
D. Both (B) and (C)
✅ The correct answer is option D.
151. Which of the following is different from other
A. Internet
B. Windows
C. Unix
D. Linux
✅ The correct answer is option A.