435. Access time in a computer memory is the time required to
A. Locate the stored data
B. Retrieve the stored data
C. Both locate and retrieve the data
D. All of the above
✅ The correct answer is option C.
438. An identifying label on the first record of magnetic tape is
A. Punched paper tape
B. Optical mark reader
C. Tape label
D. Joystick
✅ The correct answer is option C.
441. The processing capability of a microcomputer can be enhanced with the help of
A. addition processor
B. expansion cards
C. secondary memory
D. buffer memory
✅ The correct answer is option B.
444. Which of the following printer can be classified as a page-at-a-time printer?
A. Laser printer
B. Dot-matrix printer
C. Thermal printer
D. Inkjet printer
✅ The correct answer is option A.
447. Most disk drives have a single read/ write head for each disk surface. What is the advantage of suing multiple heads on each movable access arm?
A. Reduced seek time
B. Less latency time
C. Reduced search time
D. Less disk speed
✅ The correct answer is option A.
450. The data bus in 8080A/8085 microprocessor is a group of
A. eight bidirectional lines that are used to transfer 8 bits between the microprocessor and its I/O and memory
B. sixteen bidirectional lines that are used for data transfer between the microprocessor and memory
C. eight unidirectional lines that are used for I/O devices
D. eight lines used to transfer data among the registers
✅ The correct answer is option A.
453. A magnetic tape volume that is used on a data processing operation without any change to its contents is
A. Magnetic disk
B. Punched paper tape
C. Master tape
D. Card reader
✅ The correct answer is option C.
455. A factor which might cause an individual to consider using a computer in criminal activities is:
A. The computer’s access to large sums of money
B. The speed with which the crime can be accomplished
C. EFTS (Electronic Funds Transfer System)
D. All the above
✅ The correct answer is option D.
457. The memory which is ultraviolet light erasable and electrically programmable is
A. ROM
B. PROM
C. RAM
D. EPROM
✅ The correct answer is option D.
460. The barcode which is used on all types of items, is read by a scanning device directly into the computer. What is the name of this scanning device?
A. Laser scanner
B. Wand
C. OCR
D. MICR
✅ The correct answer is option A.