16450 UART was basically used for.
low speed communication 0%
high speed communication 0%
buffer data storage 0%
None of the above 0%
A USB flash drive is a _____ type flash memory data storage device.
AND 0%
NOR 0%
NAND 0%
X-OR 0%
Another name for the processor bus is.
a back side bus 0%
a front side bus 0%
an all side bus 0%
a two side bus 0%
BISYNC is a byte controlled protocol. It is usually set up for ________ transmission.
half-duplex 0%
simplex 0%
full-duplex 0%
None of the above 0%
BISYNC is a byte controlled protocol. It is usually set up for.
half-duplex 0%
simplex 0%
full-duplex 0%
None of the above 0%
By which of the following components is data retained in DRAM?
Inductors 0%
Capacitors 0%
Transistors 0%
FET 0%
By which of the following is the Jitter problem, which accrues in I/O buses, defined?
It is the tendency for the signal to reach its target voltage and float above and below 0%
It is the delay in clock signals 0%
It is an electromagnetic interference between two wires in parallel communication 0%
It is a type of crosstalk 0%
By which of the following methods can higher data densities in magnetic storage devices be achieved?
Longitudinal recording 0%
Perpendicular recording 0%
Straight recording 0%
Plane recording 0%
By which of the following names are USB and IEEE 1394 also called?
i .link 0%
Fire wire 0%
Hot wire 0%
Both a and b 0%
By which of the following principles do all magnetic storage devices read and write data?
Electromagnetism 0%
Induction 0%
Ohm's law 0%
Coulomb's law 0%
By which of the following techniques is a standard DRAM accessed?
Refreshing 0%
Paging 0%
Sequencing 0%
Filing 0%
DDR SDRAM stand for.
double data rate SDRAM 0%
delay data rate SDRAM 0%
daisy data rate SDRAM 0%
dot data rate SDRAM 0%
Devices which support USB standard are referred to as.
a medium storage class (MSC) 0%
a mass storage class (MSC) 0%
a mass save class (MSC) 0%
a master save class (MSC) 0%
DVD stands for a _____.
digital versatile disc 0%
digital variable disc 0%
data video disc 0%
data versatile disc 0%
Eight bit ISA bus systems have.
8 interrupt request lines (IRQs) 0%
16 IRQs 0%
32 IRQs 0%
64 IRQs 0%
For Which of the following devices is Arial density used as a parameter of performance?
USB device 0%
Hard disc 0%
Flash memory 0%
DRAM 0%
How many devices can be connected to a single IEEE 1394 adapter card by way of daisy- chaining?
How many individual RDRAM devices can a single rambus memory channel support?
How many interrupt requests are required by USB?
A single interrupt request 0%
Two interrupt requests 0%
Three interrupt requests 0%
Four interrupt requests 0%
How much data can a typical CD hold?
650 Gbytes 0%
650 Gibytes 0%
650 Tbytes 0%
650 Mibytes 0%
IEEE 1284.
is a serial port standard 0%
is a parallel port standard 0%
can act both as a serial and a parallel port standard 0%
None of the above 0%
In data capacity measurements, one mebibyte is equal to _____.
2¹º bytes 0%
2¹² bytes 0%
2²° bytes 0%
2³º bytes 0%
In half duplex communication , data may travel.
in one direction 0%
in both directions but not simultaneously 0%
in both directions simultaneously 0%
None of the above 0%
In NRZI (Non return to zero invert) encoding, a "1" is represented by.
no change in the signal level 0%
a change in the signal level 0%
a high level 0%
a low level 0%
In synchronization with which of the following does SDRAM, a type of DRAM, run?
CPU 0%
Peripherals 0%
Memory bus 0%
Hard disc 0%
On which of the following devices are pits and lands found?
Hard disc 0%
USB device 0%
CD 0%
All of the above 0%
RDRAMs are narrow channel devices. They transfer data at the rate of.
8 bit at a time 0%
16 bit at a time 0%
32 bit at a time 0%
64 bit at a time 0%
Signal skew problem is more evident in which of the following.
serial communication 0%
parallel communication 0%
Both a and b 0%
Synchronous data transfer is used to transfer data at a speed of.
greater than/equal to 1 Kbps 0%
greater than/equal to 5 Kbps 0%
greater than/equal to 10 Kbps 0%
greater than/equal to 20 Kbps 0%
The eight-bit ISA expansion slot resembles which of the following options?
The tongue and groove system 0%
The nut and bolt system 0%
The male and female connector 0%
None of the above 0%
The heart of any serial port is the.
UART chip 0%
USART chip 0%
Timer/counter chip 0%
Oscillator ckt. 0%
The IEEE 488 standard is.
for synchronous transmission 0%
for asynchronous transmission 0%
for serial data transfer 0%
a general purpose interface bus (GPIB) 0%
The initial implementations of IEEE 1394B require.
a nine wire interface 0%
a three wire interface 0%
a two wire interface 0%
a one wire interface 0%
The Intel 8250 is_____.
a synchronous communication controller 0%
an asynchronous communication controller 0%
A timer/counter 0%
None of the above 0%
The keyboard in a PC communicates with the main system.
through a special serial data link 0%
through a USB port 0%
both a and b 0%
through a parallel port 0%
The Legacy free systems have.
only serial ports 0%
only parallel ports 0%
both serial and parallel ports 0%
only a USB port 0%
The overall character rate of synchronous serial communication is more because.
there are separate clock signals for the transmitter and the receiver 0%
there is a common clock signal for the transmitter and the receiver 0%
the start and stop bit can be eliminated in synchronous communication 0%
the characters can come at any rate 0%
The PCI bus is often called a _____
horse bus 0%
lion bus 0%
mezzanine bus 0%
catalyst bus 0%
The transfer rate of I/O buses is also called.
the bandwidth of a bus 0%
the Nyquist rate of a bus 0%
the baud rate of a bus 0%
the flow rate of a bus 0%
To which generation of development does the PCI express bus belong?
First generation 0%
Second generation 0%
Third generation 0%
Fourth generation 0%
USB 2.0 standard has a speed of _____.
12 Mbps 0%
1.5 Mbps 0%
480 Mbps 0%
165 Mbps 0%
USB allows up to _____ devices to run simultaneously on a single bus.
256 0%
127 0%
64 0%
32 0%
USB conforms to.
Intel's plug and play (pnp) specifications 0%
Intel's cold plugging 0%
rebooting the system before use 0%
All of the above 0%
USB eliminates the need for.
special purpose ports 0%
special purpose I/O cards 0%
reconfiguring the system with each new device added 0%
All of the above 0%
USB is similar to.
IEEE 1394 0%
IEEE 844 0%
IEEE 1243 0%
IEEE 840 0%
When music is recoded on a CD, it is sampled at the rate of _____.
20,000 times per second 0%
30,050 times per second 0%
44,100 times per second 0%
88,400 times per second 0%
Which of the following buses is designed for high performance graphics and video support?
PCI 0%
AGP 0%
ISA 0%
VESA 0%
Which of the following can express a Cache memory's effectiveness?
Miss ratio 0%
Hit ratio 0%
Lock out ratio 0%
Find ratio 0%
Which of the following connections is used by USB 1.1?
Two-wire 0%
Three –wire 0%
Four-wire 0%
Six-wire 0%
Which of the following defines a nanosecond?
One billionth of a second 0%
One billionth of a minute 0%
One millionth of a second 0%
One millionth of a minute 0%
Which of the following encoding schemes can pack maximum information on a magnetic storage device?
RLL encoding 0%
FM encoding 0%
MFM encoding 0%
None of the above 0%
Which of the following encoding techniques is employed by USB?
Return to zero(RZ) 0%
Non-return to zero invert(NRZI) 0%
Return to zero invert(RZI) 0%
Return to zero non-invert(RZNI) 0%
Which of the following is a CD file system format?
High sierra 0%
Joliet 0%
UDF 0%
All of the above 0%
Which of the following is a compact disc format?
Red book 0%
Yellow book 0%
Green book 0%
All of the above 0%
Which of the following is a connector specification for USB?
Series- A 0%
Series- B 0%
Mini- A 0%
All of the above 0%
Which of the following is a difference between a DVD and a CD?
A DVD's pits and lands are much larger than those on a CD 0%
A DVD's pits and lands are much smaller than those on a CD 0%
A DVD's pits are smaller and lands are longer than those on a CD 0%
A DVD's pits are larger and lands are smaller than those on a CD 0%
Which of the following is a technique to minimize the effects of errors on a disc?
Gross- internal code (GIC) 0%
Cross interleave reed- solomon code(CIRC) 0%
Crat – external peach code (CEPC) 0%
None of the above 0%
Which of the following is a technique used to encode data on a disc?
Frequency modulation (FM) 0%
Eight- to- fourteen modulation(EFM) 0%
One- to- eight modulation (OEM) 0%
Phase modulation (PM) 0%
Which of the following is a type of hard disc drive slider?
Mini 0%
Micro 0%
Pico 0%
All of the above 0%
Which of the following is a type of head used in hard discs?
Ferrite 0%
Magnetic resistive (MR) 0%
Thin film (TF) 0%
All of the above 0%
Which of the following is a type of USB adapters?
USB- to- Ethernet 0%
USB- to- keyboard 0%
USB- to- SCSI 0%
All of the above 0%
Which of the following is not a data encoding scheme used in magnetic storage?
Frequency modulation 0%
Modified frequency modulation 0%
Amplitude modulation 0%
Run length limited 0%
Which of the following is not a type of serial communication?
Simplex 0%
Half-Duplex 0%
Double–Duplex 0%
Full–Duplex 0%
Which of the following memories can retain its contents without power?
DRAM 0%
SRAM 0%
Flash memory 0%
All of the above 0%
Which of the following memories requires a periodic refresh?
DRAM 0%
SRAM 0%
ROM 0%
Flash memory 0%
Which of the following ports uses a parallel architecture (parallel buses)?
USB 0%
IEEE 1394 0%
SCSI 0%
All of the above 0%
Which of the following topologies does USB 1.1 use?
The bus topology 0%
The ring topology 0%
The star topology 0%
The tiered star topology 0%
Which of the following wafers is used in the manufacturing of a compact disc (CD)?
Polycarbonate 0%
Polyoxide 0%
Polycalcium 0%
PVC 0%
Which one of the following combinations is used to transfer information through the memory bus?
CPU and main memory 0%
CPU and peripherals 0%
Main memory and peripherals 0%
All of the above 0%
Which one of the following is not a local bus?
VESA 0%
PCI 0%
AGP 0%
ISA 0%
Which one of the following resembles the 8 bit ISA expansion slot?
The tongue and groove system 0%
The nut and bolt system 0%
The male and female connector 0%
None of the above 0%
Which USB standard is called on-the-go standard?
USB 1.0 0%
USB 1.1 0%
USB 2.0 0%
USB 2.2 0%