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Hardware Study Guide

• The letters QUERTY can be found on a keyboard.
• The computer mouse was named because its cable looked like a tail.
• A joystick is most likely used when playing a computer game.
• Digitalizing tablets can be used for tracing diagrams.
• A touch screen used for computer input is a pointing device
• Refillable ink is NOT contained in a light pen.
• The best way to move around a 3D environment would making use of Robot technology
• Optical mark reader is used to mark multiple choice tests
• A bar code reader device could tell you the price of a bar of chocolate.
• A magnetic strip can usually be found on a Credit card
• Printed output describes hard copy.
• VAB stands for voice answer back.
• Individual dots that make up a picture on a monitor screen are called pixels.
• A daisy wheel is a type of printer.
• Factory production lines can be automated using all of the above. (Machine, tool, VDU's and plotters)
• An impact printer creates characters utilizing an inked ribbon and print head.
• An eraser would NOT be used with a flatbed plotter.
• The best way to move around a 3D environment would making use of Robot technology.
• You need a cartridge for an ink jet printer.
• A laser printer does NOT use a print head.
• Storage Capacity is the amount of data that a disk may contain.
• A floppy disk can be protected with write capabilities.
• Magnetic tape is usually backed up using the information on a hard disk.
• Magnetic storage devices can represent binary 0 by the absence of a magnetic field.
• Magnetic tape is a serial access medium.
• Hard disks can have a storage capacity in the region of 1 GB.
• Formatting a disk results in all data being deleted from the disk.
• A CD-ROM in Mb's has the largest storage capacity.
• A CD-ROM storage device cannot be erased.
• Floppy disks should be stored in a drawer.
• John Von Nuemann is credited with developing the architecture of the modern computer.
• Information between processors and peripherals is carried on the Data bus.
• Control bus controls the sequencing of read/write operations.
• RAM chips contents are lost when the computer is switched off.
• ROM chips are responsible for storing permenant data and instructions,
• ALU performs arithmetic calculations
• Registers are small high speed memory units used for storing temporary results.
• Status register maintains the status of the last operation carried out by the ALU.
• Each memory cell in a computer chip can hold 1 bit of information.
• RAM chips are said to be volatile. -Calcualtors are an example of an Embedded Systems
• Parallel comuputers use single chip processors
• Flights are are reservered by travel agents use mainfraim computers in their systems
• Super computers are used for weather forecasting.

Generations of Computers

• Minicomputers are connected to many terminals to do multitasking
• Vaccum tube based electronic compters where 1st generation
• The generation microchips where developed from 3rd generation
• Uses more than one microprocessor = 5th generation
• Integrated circuit integrated circuit = third generation
• Basic computer = A calculator

Data and its Storage on Computers

• The user should best save their work to a USB Key.
• RAM temprarily stores information.
• Brain of cpu is the comptuer
• The operating system is also called the interface
• When instilling peripherals need to instiall Driver.
• Base 2 number systems use computers for information
• Single binary digit iis kmkn as BIT
• Internet safety realtes to those that conect to the interenet
• word 2007 extension name ends with.docx
• KB represents 1,000bytes
• 1 Mb (megabyte equals to 1,024,000

Computer components

-LOCATE statement in QBasic that is w'rnost evil

• Arithmetic Logic Unit(ALU) stands for
• Stand DDR RAM Dimm, has 184 pins
• 370 / Socket mPGA 370 / Slot 1, Platform(s) can a Pentium III Processor beused in
• Insufficient Power is a commonly the problem in the constantly rebooting comptuer
• Advanced Micro Devicescompany name = AMD' stand for
• Ethernrt use inRJ 45 Connection has 4 Streaming Simmd Extens = SSE stand for
• Platform = EDO/Fast-Page Ramin Intel Pentium 4 = 4
• ATI Radeon 9700 Pro Video Card suited for = 3D Games
• AMD K6 3= Sockets7. Processor Platform Belongs = 7
• Processor in Be VIA Be can Processor platform the = Cyri III
• Motherboard manafactur = Asusas most popular
• The BEST ram solution DDR- SDRAM

More comptuers questions

• Type writers = The SHIFT key which a carry-over from .
• Bit integer =If an 8 has a maximum of 256 possible .
• Eprom (E), that's the comptuer code
• Byte(generally coded in 8-bit units .-Adder is logic CKT that half.
• Known as subtrahend: is 1st Complement . Minuend is subtrated in complement
• Decoder full father is converting in the number system is used are

Terms Summarized

One to many = Multiplexer means . The 3 decimal number in to excess converted in Eight = the Ascll code isa number

Information Processing

• "Garbage in garbage out", garbage principle states Speed at which data travels = baud is a of the measure term The . program small initialisation is a Bootstrap A. Tape magnetic =Assembleris not hardware which that Follow Data processing Electronic = For acronym End . Business data processing= For to a language used cobul Computer heart'= For Conrol = unit . Is a access power the ,computer terminal is where. Reader mark optical=Sheets answer evaluation atounically can

Computer Software and Performance

System operating = not equired on large Tape hard= Which of the following acmes . called storingis a process is data Upadring a the from a Volame low /High =tape magnetic is a storage medium for

Program Compiling and File Naming Formats

• JAVAL = a computercode Byte = the 8 bit units data general
• Adds Logic CKT half is adder: Digital carry = A number which is .
• Encoder FA is convering the number system
• Bit code =Acsll
• Adding each diigt = converted in decimal • Application software : .

Memory And Information Management

Follows a simple principle = computer MuitipleChoiceExamsEvaluated= mark optical reader. -System operation .

• Quickest access = tapes harddisk
• Storing data called processing -Data in readwrite operation= ram = -Alogorithm solve used is a
• The motherboard helps the ROM and CPU and RAM

Computer Networks Study Notes

• Point of sales terminals and systems is commonly used
• A device that are PC-based servers are replacing minframes.
• DSL=Example Broadband
• Interconncted computer= Configuration Micro program sequence,
• Central computer= Time required
• Multiuser= Savings cost
• Dumb Terminal= Key board and screen.

Wireless Connections and Related Acticities in Computers

• Wireless= USB
• Collection= Network Memory card .
• Multiple and path - Multiplexing
• Lan /single sites = small network
• lan local can share = peripheral
• Outputs into n = croospoint
• Two or more by its = multiplexing
• Analong signals = FDM FDM is -analog
• Network connect = Cable same -Bvs mixed star .
• Share from = Two interation pipeline .
• Connected corporate = WAN
• FDM needed it filters band is necessary

Data and its travels

• Decriptipn funtions are= Function decription Presentation .
• Entrie compac=t Whtitich Switchung .
• Pertimen virtual =Al of the above
• Conists of = X2. T protocol .
• Dialouue control tok = responsibility Layer tranqpost
• The roiting is peform =Layer network
• Fiber optic is = Perforem demulation .
• Diginal singles refers = Demulation signals
• The X2. Stand = Data = Data bits ,DTE/DCE

Communication Models and Networking

Simplex=one direction but has traffic three what. Inclusion communication needs= the the the the The . Shareing Suited = system time interact

Communications lines

• Data communication= in telecommunication
• Half du flex = communication lines wrong .
• Syncrouns transmission in transmissions the data derilves of =
• A broad the channel is = Cable coaxial fiber

Multi-media

• Modems and systems micraware are some of the = Transmission Share = concentrator multiple is Not the . Cis Signal = - C signalnot a = not standard.
• RTS way = termun indicate .

Software and Computer Usability

• Fiber optics using = Advantage
• Communication between too = Requires
• M ethod TI carrier is = Nrz blosck
• serial communication = used Few, Moves data is relatively = which that Channes useing telegraph = line single a communications in the= the

Networking with Mediums

A concentrator combination transmissions devices = communications divides

Power of Leds

• Diode emmitting led = coupling power
• Synchronizing the modern = more costly
• .Scrambled synchronizing modems
• Equalizer= Transmist signal too the

Operating System

• Narrow band channel
• The language than a computer can = machine -Retrieval information = faster = data

Operating Sytem

User- Friendly

• Operating system is the = . -Routines is collection -Interface userfriendly provides a operating
• Modulator demodulator= Lan transfers high

Networks Data transfer

• Require wide all wayes = Network
• The fibers is Typical= HZ order

Broadcasting

Communication stations= line pirled = A geographic by computer are by .

• The star not of topology
• Erro in program = means Bus

Machine Level Instruction

• Code operation to done was part =
• 4gl supporthigh not following is that
• (2) program Application program a and system both=
• translator besr describes =system software
• Interprepter analyses source innot follwing
• Compiler output of printer = is graphics preapard

IO Devices and Memory

• ALlU has input

Computer data

• Employee addressee is Non numerical
• Kilobyye = byte thousand
• Language = machinne the Step by step proceduer = Algoithm
• Holds Roms

The Compiler

• SyntxErrors

WAN/LAN/ Operating Systems/Servers Study Notes

• An assembly language= Cis
• Used is more prepared-by-outputa graph
• All= Which ohe does = not present 110 device .
• Busbetween periphery = and memo commuincator

Memories and Data Storage

• Memory is reads only

What is Microsoft, File Structure & Extension, Etc.

-What =docx 2007 . -A 1000B =Kilo

• Can = All the compiler .

Hardware study Questions

=

• The most recent version of MS is called
• All the questions answers

The MS WORD

Three times (3) = pressing -extended selects

• Press F8 selection how disable.
• Status is extatorindicate EXT indicator. 10 max= cap the 5
• 3is number default the = cap for lines top . alt + ctr =y right press can . The = 65 insert you can