Which of the following software interacts with the hardware ?
Answer: C
Correct answer: System software
System software - the operating system, its drivers and its utilities - is the layer that deals with the hardware directly, issuing the commands that read a disk, drive a display or send a packet. Application software asks the system software to do that work rather than touching the hardware itself.
Please log in or register to report this question.
Mouse , trackball and joystick are the examples of ?
Answer: C
Correct answer: Pointing devices
A mouse, a trackball and a joystick all report movement, which the system turns into the motion of a pointer on the screen, so they are pointing devices. What separates them is only how the movement is produced - sliding the whole device, rolling a ball in place, or tilting a stick.
Please log in or register to report this question.
Secondary memory is also known as ?
Answer: B
Correct answer: Auxiliary memory
Secondary storage - hard disks, optical discs, flash drives - is also called auxiliary memory: it is non-volatile and holds programs and data between sessions, but the processor cannot address it directly, so its contents must be copied into main memory before use.
Please log in or register to report this question.
Which of following is not an application software ?
Answer: B
Correct answer: Winrar
Photoshop, SAGE and Dreamweaver are applications: they do work the user wants done - editing images, keeping accounts, building web pages. WinRAR compresses and extracts archives, which is housekeeping on the machine itself, so it is classed as a utility.
Please log in or register to report this question.
Which of these are internal parts of computer ?
Answer: D
Correct answer: All of above
All three sit inside the case: the expansion slots are on the motherboard, the network card plugs into one of them (or is built into the board), and the cooling fan is mounted over the processor or in the power supply. None of them is a peripheral attached from outside.
Please log in or register to report this question.
Modem is used mostly for ?
Answer: C
Correct answer: Connecting to internet
A modem converts the computer’s digital data into a form the telephone or cable line can carry and converts the incoming signal back again, which is how a home machine reaches an internet service provider. The word is a contraction of modulator–demodulator.
Please log in or register to report this question.
Which among following is not a low level language ?
Answer: C
Correct answer: COBOL
Machine language and assembly language are low-level: they work in terms of the particular processor’s instructions and registers. COBOL is a high-level language whose statements are written in English-like sentences and are translated by a compiler, so it is independent of any one machine.
Please log in or register to report this question.
Resolution of printer is measured in ?
Answer: D
Correct answer: DPI
Printer resolution is measured in dots per inch - how many separate dots of ink or toner the printer can place along an inch of paper. A higher figure means finer detail and smoother curves, so 1200 dpi output is sharper than 300 dpi.
Please log in or register to report this question.
Which is responsible for performing modulation/demodulation ?
Answer: C
Correct answer: Modem
Modulation impresses digital data on an analogue carrier and demodulation recovers it at the far end - the two operations a modem is named after. Fibre and coaxial cable are transmission media, and a router forwards packets between networks.
Please log in or register to report this question.
In which generation of computers microprocessor was introduced ?
Answer: D
Correct answer: Fourth Generation
The fourth generation began in the early 1970s when a whole processor was put on a single chip - Intel’s 4004 in 1971 - making the microcomputer possible. The first three generations used vacuum tubes, transistors and small-scale integrated circuits respectively.
Please log in or register to report this question.
