Description : What types of operating systems let more than one user access the same resources at the same time?
Last Answer : Multiuser/multitasking.
Description : How many types of microcomputers and what are they ?
Last Answer : 3 types of microcomputers. Namely: palmtop , laptop , desktop.
Description : LEDs operating at 850 nm provide sufficient optical power for short-distance, low-bandwidth multimode systems. List three conditions that prevent the use of LEDs in longer distance, higher bandwidth multimode systems.
Last Answer : Multimode fiber dispersion, the relatively high fiber attenuation, and the LED's relatively low optical output power.
Description : What term is used for programs such as assemblers, compilers, and operating systems?
Last Answer : Software.
Description : Which type of computers uses the 8-bit code called EBCDIC? A) Minicomputers B) Microcomputers C) Mainframe computers D) Super computer
Last Answer : Answer : C
Description : ART (Automatic Reasoning Tool) is designed to be used on __________ a) LISP machines b) Personal computers c) Microcomputers d) All of the mentioned
Last Answer : a) LISP machines
Description : Which are microcomputers commonly used for commercial data processing, desktop publishing and engineering application. a. Digital computer b. Personal computer c. Both d. None of these
Last Answer : b. Personal computer
Description : What is the usualnumber of bits transmitted simultaneously inparalleldata transmission used by microcomputers? A. 16 B. 9 C. 8 D. 4 E. None of the above
Last Answer : 9
Description : Hard Disks and Diskettes are: a) Direct Access Storage Devices b) Sequential Access Storage Devices c) Rarely used Microcomputers d) None of The Above
Last Answer : a) Direct Access Storage Devices
Description : Data centers and centralized computing covers many and a) Microcomputers b) Minicomputers c) Mainframe computers d) Supercomputers
Last Answer : Supercomputers
Description : The ALU and control unit of most of the microcomputers are combined and manufacture on a single silicon chip. What is it called? a. monochip b. microprocessor c. ALU d. control unit
Last Answer : b. microprocessor
Description : Which type of computers uses the 8-bit code called EBCDIC? a. Minicomputers b. Microcomputers c. Mainframe computers d. Super computer
Last Answer : c. Mainframe computers
Description : Which type of computers uses the 8-bit code called EBCDIC? a. Minicomputers b. Microcomputers c. Mainframe computer
Last Answer : c. Mainframe computer
Description : One of the main features that distinguish microprocessor from microcomputers is (A) words are usually larger in microprocessors. (B) words are shorter in microprocessors. (C) microprocessor does not contain I/O devices. (D) None of the above.
Last Answer : (C) microprocessor does not contain I/O devices.
Description : What are the three relatively common classifications of servo systems by function?
Last Answer : Classifications in accordance with position, velocity, and acceleration functions.
Description : What is the simplest type of clock circuit?
Last Answer : An astable or free-running multivibrator.
Description : What is the name of the simplest type of rectifier which uses one diode?
Last Answer : The half-wave rectifier.
Description : What is the simplest type of scanning?
Last Answer : Single lobe.
Description : In its simplest form, what functions must a radar detector be capable of performing?
Last Answer : Detecting the presence of rf energy.
Description : What is the simplest form of fm detector?
Last Answer : Slope detector.
Description : What does the simplest diode detector use to reproduce the modulating frequency?
Last Answer : The modulation envelope.
Description : What is the simplest method of feeding power to the half wave antenna?
Last Answer : To connect one end through a capacitor to the final output stage of the transmitter.
Description : Which types of LEDs are the preferred optical sources for short-distance, low-data-rate fiber optic systems?
Last Answer : SLEDs and ELEDs.
Description : What are the two basic types of tape buffering reeling systems?
Last Answer : a. Spring-tension buffering systems. b. Vacuum-column buffering systems.
Description : What are four types of tape errors that can degrade a magnetic recording system’s performance?
Last Answer : Signal dropout, noise, skew, and level. Dropout is the most common.
Description : the two most common computer operating systems in the world are _________. -General Knowledge
Last Answer : The two most common computer operating systems in the world are Windows and OS X.
Description : 8. Nslookup can be used to gather information regarding which of the following? A. Host names and IP addresses B. Whois information C. DNS server locations D. Name server types and operating systems
Last Answer : A. Host names and IP addresses
Description : What are the three more common types of irregular variations in the ionosphere?
Last Answer : Sporadic E, sudden disturbances, and ionospheric storms.
Description : List the two common types of waveguides in use today.
Last Answer : Cylindrical and rectangular.
Description : What are the three most common types of packages?
Last Answer : TO, flat pack, DIP.
Description : Tape winding errors can cause a deformed tape pack. What are four common types of tape pack deformation?
Last Answer : Cinching, pack slip, spoking, and windowing.
Description : What are the two most common types of mode filters?
Last Answer : Free-form loop and mandrel wrap.
Description : What are the most common types of fibrous tape?
Last Answer : Rubber-filled cloth tape and a combination of cotton cloth and rubber.
Description : What happens to the permeability of an iron core as the current increases from the operating point to a large value?
Last Answer : Permeability decreases
Description : Why is the availability of applications software for a particular operating system critical?
Last Answer : Because, to use applications software, it must be compatible with the operating system.
Description : What is used to show how diode parameters vary over a full operating range?
Last Answer : A characteristic curve.
Description : What are some disadvantages of operating a transmitter at or near the muf?
Last Answer : Frequent signal fading and dropouts.
Description : What are some disadvantages of operating transmitters at or near the luf?
Last Answer : Signal-to-noise ratio is low and the probability of multipath propagation is greater.
Description : What happens to the fundamental mode as the operating wavelength becomes longer than the single mode cutoff wavelength?
Last Answer : The fundamental mode becomes increasingly lossy.
Description : For efficient operation, should a detector have a high or low responsivity at the operating wavelength?
Last Answer : High.
Description : When an operating system prompt (A>) is displayed on the screen, what do you enter from the keyboard to load an application program?
Last Answer : The program name.
Description : How do dual-motor dual capstan drives maintain a constant tape tension while operating in either a forward or reverse direction?
Last Answer : Each capstan is driven by its own motor. It maintains tape tension by slowing down one of the motors. When the tape motion is reversed, the opposite motor is slowed down.
Description : What are the transmitter operating modes?
Last Answer : Lsb, usb, isb, AM, cw, fsk.
Description : Scattering losses are caused by the interaction of light with density fluctuations within a fiber. What are the two scattering mechanisms called when the size of the density fluctuations is (a) greater than and (b) less than one-tenth of the operating wavelength?
Last Answer : . (a) Mie scattering; (b) Rayleigh scattering.
Description : a. Define the term "working voltage" of a capacitor. b. What should be the working voltage of a capacitor in a circuit that is operating at 600 volts?
Last Answer : a. It is the maximum voltage the capacitor can work without risk of damage. b. 900 volts.
Description : In which plane will the half-wave antenna be operating if it is mounted horizontally?
Last Answer : Vertical plane.
Description : What is the primary cause of broadside arrays losing efficiency when not operating at their designed frequency?
Last Answer : Lower radiation resistance.
Description : What is the most likely cause of losses in waveguide systems?
Last Answer : Improperly connected joints or damaged inner surface.
Description : What type of synchro is used in systems requiring large amounts of power and a high degree of accuracy?
Last Answer : A control synchro.
Description : Name the two general classifications of synchro systems
Last Answer : Torque and control.