Computers process data under the control of sets of instructions termed as
Answer: A
Correct answer: computer programs
A program is the set of instructions that directs the processing. Data is what is processed and a bus is what carries it.
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Teletypewriter terminal is an example of
Answer: C
Correct answer: input/output devices
A teletypewriter both accepts typed input and prints output, so it works in both directions - which is why it was the standard console of early computers.
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Devices which are used to receive data from central processing unit are classified as
Answer: D
Correct answer: output devices
Devices that receive data from the processor and present it - monitor, printer, speaker - are output devices. Input devices send data the other way.
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Which among the following hardware you usually can’t find inside a CPU Casing?
Answer: C
Correct answer: Video display unit
The power supply, the video card and the graphics processor are all inside the case. The display is the monitor, which stands outside it.
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Which among the following is not a peripheral hardware device in a computer system?
Answer: C
Correct answer: HDD
A peripheral is a device attached to the computer rather than part of it, and the keyboard, printer and optical drive all qualify. The hard disk is internal and is treated as part of the system rather than as a peripheral.
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Identify the network hardware of a home network
Answer: A
Correct answer: Access Point
A home network is built around an access point or wireless router, which joins the wired and wireless sides and provides addressing. A NIC belongs to one machine and FireWire is a peripheral bus.
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In which input method the data is already in machine readable form?
Answer: A
Correct answer: Direct input method
Direct input reads data that is already in a form the machine can process - a bar code, a magnetic stripe, a mark sheet - without anyone transcribing it. Indirect input requires it to be keyed in first.
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In a computer keyboard the Alt, Ctrl, Shift, Del & Insert keys are known as
Answer: D
Correct answer: Special purpose keys
Alt, Ctrl, Shift, Delete and Insert do not type characters; each modifies or controls what the machine does with other keystrokes, which is what makes them special purpose keys.
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Dvorak, Colemak and QWERTY are keyboard layouts for which scripts?
Answer: A
Correct answer: Latin Scripts
Dvorak, Colemak and QWERTY are all arrangements of the same set of Latin letters, differing only in where each letter sits. Other scripts have layouts of their own - JCUKEN for Cyrillic, InScript for Devanagari.
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