Q1. A (n) __________ device is any hardware component that allows you to enter data and instruction into a computer.
(a) interaction
(b) input
(c) communications
(d) output
(e) terminal
Q2. The device that can both feed data into and accept data from a computer is called _________.
(a) ALU
(b) CPU
(c) input-output device
(d) All of these
(e) None of these
Q3. The insert, cap lock and num lock all are examples of __________ keys.
(a) Control
(b) Function
(c) Toggle
(d) Shortcut
(e) None of these
Q4. An electronic device, operating under the control of instruction that can accept and process the data, produce output and store the results for future use is called _________.
(a) Input
(b) Computer
(c) Software
(d) Hardware
(e) None of these
Q5. Computer gathers data, which means that it allow users to __________ data.
(a) Present
(b) Input
(c) Output
(d) Process
(e) None of these
Q6. The smallest unit of information, a computer can understand and process is known as ________.
(a) Digit
(b) Byte
(c) Megabyte
(d) Bit
Q7. Computers use the ____________number system to store data and perform calculations.
(a) Binary
(b) Decimal
(c) Octal
(d) Hexadecimal
(e) None of these
Q8. Mozilla Firefox is a _____.
(a) Spreadsheet
(b) Word processing software
(c) Web browser
(d) Programming software
(e) None of these
Q9. _____ is usually recorded and played, displayed, or accessed by information content processing devices, which as computerized and electronic devices, but can also be part of live performance.
(a) Virus
(b) BIOS software
(c) Multimedia
(d) C++
(e) None of these
Q10. Which of the following appropriately relates with starting up an operating system?
(a) Starting
(b) Entering
(c) Formatting
(d) Booting
(e) None of these
Q11. In MS-DOS 6.22, which part identifies that product uniquely?
(a) MS
(b) DOS
(c) Ms - DOS
(d) 6.22
(e) None of these
Q12. In relational database, a field is a:
(a) label
(b) table of information
(c) group of related records
(d) category of information
(e) None of these
Q13. Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?
(a) Candidate key
(b) Sub key
(c) Super key
(d) Foreign key
(e) None of these
Q14. A __________ is a property of the entire relation, rather than of the individual tuples in which each tuple is unique.
(a) Rows
(b) Key
(c) Attribute
(d) Fields
(e) None of these
Q15. EPROM is generally erased by using ______.
(a) ultraviolet rays
(b) infrared rays
(c) 12V electrical pulse
(d) 24V electrical pulse
(e) None of these
Solutions
S1. Ans. (b)
Sol. Input devices are for giving input (entering data/instructions) to a computer.
S2. Ans. (c)
Sol. I/O Device or Input Output device can both feed data into and accept data from a computer.
S3. Ans. (c)
Sol. The insert, cap lock and num lock are all examples of Toogle keys. A toggle key toggles the input from a group of keys on a keyboard between two different input modes.
S4. Ans.(b)
Sol. Computer is an electronic device operating under the control of instruction that can accept and process the data, produce output and store the results.
S5. Ans.(b)
Sol. Computer allows user to input data, and by user’s inputs it gathers data.
S6. Ans. (d)
Sol. Bit is the smallest unit of information.
S7. Ans.(a)
Sol. Computer uses binary number system.
S8. Ans. (c)
Sol. Mozilla Firefox is a web browser.
S9. Ans. (c)
Sol. Multimedia is the field concerned with the computer-controlled integration of text, graphics, drawings, still and moving images (Video), animation, audio, and any other media where every type of information can be represented, stored, transmitted and processed digitally.
S10. Ans. (d)
Sol. Booting is a startup sequence that starts the operating system of a computer when it is turned on. A boot sequence is the initial set of operations that the computer performs when it is switched on. Every computer has a boot sequence.
S11. Ans. (d)
Sol. MS-DOS 6.22; 6.22 is the version number which identifies it uniquely.
S12. Ans. (d)
Sol. A field is category of information.
S13. Ans. (c)
Sol. Super key is a set of one or more attributes taken collectively to uniquely identify a record.
S14. Ans. (b)
Sol. Key is a property of the entire relation (relation is a table).
S15. Ans. (a)
Sol. EPROM is generally erased by using ultraviolet rays.
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