667. Which access method is used for obtaining a record from a cassette tape
A. direct
B. sequential
C. random
D. All of the above
✅ The correct answer is option B.
670. Disketts and hard disks are
A. Direct access devices
B. Sequential access devices
C. Slower than magnetic tape
D. Used only in mainframe computers
✅ The correct answer is option A.
673. The file extension of MS-Word document in Office 2007 is _______.
A. .doc
B. .docx
C. .pdf
D. .txt
✅ The correct answer is option B.
676. Which of the following can store information in the form of microscopic pits on metal disks.
A. Laser disks
B. Tape cassettes
C. RAM cartridge
D. Punched cards
✅ The correct answer is option A.
679. CPU stands for ______ ?
A. Central Performance Unit
B. Control Processing Unit
C. Common Processing Unit
D. Central Processing Unit
✅ The correct answer is option D.
682. The main purpose of the off line device is
A. To reduce the no.of operator errors in recording data
B. To save computer time
C. To save floor space in the computer centre
D. All of the above
✅ The correct answer is option B.
684. A beam of light used to record and retrieve data on optical disks is known as
A. polarized light
B. unpolarized concentric light
C. laser
D. coloured light
✅ The correct answer is option C.
686. A physical connection between the microprocessor memory and other parts of the microcomputer is known as
A. Path
B. Address bus
C. Route
D. All of the above
✅ The correct answer is option B.
688. The Josephson tunneling device illustrates principles associated with the advanced storage technique:
A. cryogenics
B. CCD
C. EBAM
D. holographing
✅ The correct answer is option A.
690. In which mode, each user has a local input/output device.
A. Interactive
B. Time sharing mode
C. Batch processing mode
D. All of the above
✅ The correct answer is option B.