Information and Communication Technology (ICT)- Test 01
Information and Communication Technology (ICT)- Test 01
Computers have evolved from the early mainframe computers to the relatively small smart devices with high computing power being used today. Which of the following inventions contributed to reduce the physical size computers?
(a) Vaccum tubes
(b) Transistors
(c) Integrated circuits
(d) Cathode ray tubes
Consider two binary number P=10110001 and Q=01001110. If X=P or Q, Y=P and Q, then what will be the values of X and Y respectively?
(a) 01001110, 10110001
(b) 10110001, 00000000
(c) 10110001, 11111111
(d) 11111111, 00000000
Identify the correct order of the term A-E given below that completes the paragraph describing a method of operation for a keyboard.
A computer keyboard has a key matrix underneath the keys when a key is pressed, it presses a switch that completes a _______. This allows __________ to flow. The location of the key pressed is ________. The location of the key pressed is compared to a __________ map to find the ________value for the key that has been pressed.
A. Binary
B. Calculated
C. Character
D. Circuit
E. Current
Choose the correct answer from the options given below:
(a) E, D, B, C, A
(b) D, E, B, C, A
(c) C, D, B, E, A
(d) A, E, B, C, D
Which of the following statement A-C are correct about a Hard-Disk Drive (HDD) used as a storage device in computer?
A. It has no moving parts
B. It is non-volatile
C. It uses magnetic properties to store data
Choose the correct answer from the options given below:
(a) A & B only
(b) A & C only
(c) B & C only
(d) A, B & C
Given below are two statements:
Statement I: (1011101)2 = (135)8
Statement II: (71)8 = (111001)2
In the light of the above statements, choose the correct answer from the options given below:
(a) Both Statement I and Statement II are true
(b) Both Statement I and Statement II are false
(c) Statement I is true but Statement II is false
(d) Statement I is false but Statement II is true
Identify the correct order of the terms A-E to complete the following paragraph about computer devices and technology.
An _____ allows a user to write on a surface using a pen, and the text and drawings can then be captured and stored for later use. An _____ printer produces a hard copy of a document using _____ and piezoelectric technology. A ____ printer uses a ______ drum, and positive and negative charges, to produce a hard copy of a document.
A. inkjet
B. interactive whiteboard
C. laser
D. rotating
E. thermal bubble
Choose the correct answer from the options given below:
(a) B, E, A, D, C
(b) B, A, E, C, D
(c) A, B, E, C, D
(d) E, D, C, B, A
Given below are two statements:
Statement (I): An output device that creates an object by building layer upon layer of material is called 3D printer. It is widely used in CAD applications.
Statement (II): Laptops can be used even when not plugged into an electricity socket.
In the light of the above statements, choose the most appropriate answer from the options given below:
(a) Both Statement I and Statement II are true
(b) Both Statement I and Statement II are false
(c) Statement I is true but Statement II is false
(d) Statement II is true but Statement I is false
A computer uses RAM and ROM to store data. Which of the following statements describing ROM is/are true?
A. It stores the programs and data that are currently in use.
B. It is used to boot up the computer when power is turned on.
C. Its contents are retained when power is turned off.
Choose the correct answer from the options given below:
(a) A only
(b) B only
(c) A and B only
(d) B and C only