Hardware Midterm 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How many steps are there to laser printers? | 7
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| Step 1 for laser printing? | Processing - receive date from computer (font, images and formatting) and puts that page image into printer memory.
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| Step 2 for laser printing? | Charging/Conditioning - Charge on drum from wire (primary corona) or a charge roller. Regulated by a screen. -600V
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| Step 3 for laser printing? | Writing/Exposing - Charged drum (-600V) exposed to laser where image is to be printed. Changes charge to -100V.
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| Step 4 for laser printing? | Developing - Toner (powder of plastic and iron) released by developer roller. Attaches to places where laser hit (-100V).
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| Step 5 for laser printing? | Transferring - Paper fed to printer, given positive charge (by corona or charge roller). Toner attracted to paper.
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| Step 6 for laser printing? | Fusing - powder sitting on paper. Lamp heat up fusing roller and toner bonded to paper.
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| Step 7 for laser printing? | Cleaning - remaining toner + charge wiped away by cleaning blade.
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| What is toner? | Plastic + Iron
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| What is impact printer used for? | Carbon copies
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| Advantages of dot matrix? | Can make carbon copies.
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| Disadvantage of dot matrix? | Expensive, loud, slow, mechanical, limited colour.
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| Advantages of ink jet? | Cheap, quiet, fast, colour
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| Disadvantages of ink jet? | Ink expensive, no carbon copy, can dry
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| How many Pins used in a dot matrix? | 9, 18, 24
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| What are the 2 modes that dot matrix can print in? | Font + Dot Address
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| What are the 2 paper handling methods of dot matrix? | Friction + Tractor
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| What are the 2 methods of projecting ink? | Drop on demand + Continuous stream
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| What are the 3 colours of of ink for ink jet? | Cyan, Magenta, Yellow...and Black
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| Constant stream uses what kind of crystal? | Piezo Crystals
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| What is DSP? | Digital Signal/Sound Processor
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| What is DAC and ADC? | Digital to Analog Converter
Analog to Digital Converter
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| What is a breakout box? | Controller that can have remote, dials, jacks, etc.
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| What are the various sound jack colours? | Green = Front/Headphone Black = Rear
Pink = Mic Blue = Line Out
Orange = Sub-woofer / Center
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| Difference between Lossy and Lossless sound types? | Compression. Lossy doesn't record information that (most) humans are unable to hear. Lossless is a records everything.
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| PINS: Floppy? | 34
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| PINS: P1 / Main ATX Power? | 24 (older has 20)
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| PINS: PCI-e? | 8 (older has 6)
+12V, some video cards can require 4x
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| PINS: Narrow Internal SCSI | 50
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| PINS: Wide Internal SCSI | 68
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| PINS: DDR3 / DDR2 | 240
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| PINS: DDR | 184
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| PINS: Front Panel (Server) | 24
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| PINS: EPS? | 8
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| PINS: P4? | 4 - Processor Power
+12V
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| PINS: Molex? | 4 -
+12V, +5V
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| PINS: Berg? | 4 - Floppy Power
+12V, +5V
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| PINS: SATA? | 15 -
+12V, +5V, +3.3V
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| PINS: AUX? | 6 - Not found recently, reduces load on P1
+5V, +3.3V
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| PINS: SCSI? | 25
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| Differences between server and desktop? | Size, Processor type and amount (Xeon, Opteron), Video/Sound cards.
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| How wide typical server rack? | 19 inch
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| What does it mean to say server is running headless? | No monitor, have to remote into it.
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| How do you measure server in units? | U's, 1 U = 1.75 inch
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| Whats found in a server that's not found in a desktop? | PCIx 64bit
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| What is a blade server? | Vertical server units, can be hot swapped.
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| Which wireless standard does not use the 2.4GHz frequency? | A
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| What is WPAN? | Wireless Personal Area Network, normally using Bluetooth.
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| WPA vs WPA2? | WPA - software encryption, not as secure
WPA2 - hardware encryption, more secure, more resources from the router.
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| Why isn't wireless standard G backwards compatible with A? | Different frequencies. A= 5, G= 2.4
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| Shortest range Bluetooth? | Class 3 - 1m
Class 2 - 10m
Class 1 - 100m
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| What frequency does Bluetooth use? | 2.4 GHz
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| What methods are there to secure wireless network? | MAC filtering, don't broadcast SSID, WPA atleast, WPA2 even better.
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| What does SCSI symbol look like? | Cross beween upper case C and G
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| What is SCSI ID? | Should be unique, all devices require one, highest priority = 7
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| Which SCSI ID should be given to host adapter card? | Highest (7)
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| Difference between wide and narrow SCSI? | Narrow = 50 pins, 8 devices
Wide= 68 pins, 16 devices
Wide is physically less wide.
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| What is SAS? | Serial Attached SCSI
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| Alternative to SAS? | Parallel SCSI
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| SAS vs Parellel? | Serial = faster, no termination, SCSI auto ID
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| How do you terminate SCSI? | Terminate on both ends of bus.
All internal/external? Host Adapter to final device.
Some internal/external? Final device internal to final device external.
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| What company makes vast majority of SCSI stuff? | Adaptec
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| What is SCAM? | SCSI Configure Auto Matically(Magically)
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| How many SCSI adapters on a chain? | Narrow - 8
Wide - 16
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| How do SCSI device physical location affect the ID? | It doesn't, LOL!
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| Official standard for Firewire? | 1394
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| Number of devices Firewire and USB can handle? | Firewire = 63
USB = 127
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| General speed of floppy drives? | 300 rpm
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| General disk size of floppy disk? | 1.44MB, Double sided High-density
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| How does the twist in the floppy cable work? | Before the twist = Secondary (B:\)
After the twist = Primary (A:\)
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| What does it mean if the Floppy drive light is staying on? | It has been plugged in backwards.
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| What method is used to record on floppy? | It is called Tunnel Erasure
Single band of information between 2 erased bands.
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| What is odd of floppy recording compared to hard disk? | Floppy has constant head crash, always touching. Means has to be cleaned and teflon coating to help it.
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| What is the difference between memory and module type? | Memory example = DDR
Module example = DIMM/SIMM
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| What type of memory uses a continuity module? | RAM BUS
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| Why would you flash a system BIOS? | To upgrade the firmware.
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| How do you flash a BIOS? | Need to get the utility for specific motherboard from manufacturer and the upgraded bios.
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| DDR-400 =? PC3-5200 =? | PC-3200
DDR3-650
DDR #= PC#x8 PC#= DDR#/8
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| What are some popular Firewire devices? | Scanner, Camera, printer, apple stuff
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| Wire voltages? | Yellow/Blue = 12/-12 Orange = 3.3
Red/White = 5/-5 Purple = 5 standby
Green/Grey = PWR ON/OK Black = COM = ground
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| What is the difference between power supplies? | Wattage, Heat dissipation, modular, effeciency
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| What is SRAM? | Static RAM - cache memory
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| What is DRAM | Dynamic RAM - main memory
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| What type of connectors do video cards have? | HDMI, DVI-i, VGA, S-video
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| Different types of DVI? | DVI-i= digital+analog
DVI-a= analog
DVI-d= digital
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| Name of Nvidia and AMX multiple video card solution? | Crossfire and SLI
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| Where is cache found? | LvL 1 and 2 = On CPU, individual for each core
LvL 3 = shared between cores
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Created by:
Datheral
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