1. Parallel: Data travels parallel in different paths.2. SCSI: SCSI (Small Computer Systems Interface)

SCSI or "scuzzy" stands for Small Computer Systems Interface. It is a method of connecting storage devices to computers. At the time thename was created, most of the computers were small. SCSI adapters allow for daisy chaining, creating a chain up to at most 16 devices.What makes SCSI so powerful is that not only is it easy to plug in, but the interface and the communication itself is very intelligent. Thisallows for a lot of communication over the SCSI bus. To end a chain of SCSI devices, the last device has to be a "Terminator". TheTerminator sits as the last device on the chain and tells SCSI communication where the signal ends. Without it, data would gather andbecome static. Most new SCSI interfaces have terminators built into the device itself.

3. AGP 2x,4x, 8x: Accelerated Graphics Port-Graphical processor for computers. Was created to increase bandwidth for gaming and highintensity programs. The AGP had its own dedicated slot in most computers. Was replaced when PCLe was changed to the standardexpansion slot which provided better speeds. AGP 1.0 (3.3v) gave x1 speeds of 266Mb/s and x2 speeds of 266Mb/s. AGP 2.0 (1.5v) gave x1speeds of 1.07Gb/s. AGP 3.0 (0.8v) gave x8 speeds of 2.1Gb/s.

4. AM2: The Socket AM2 was released in 2006. Like the Socket 940, it features 940 pins and a pin grid array. Unlike the Socket 940, it onlysupports the use of DDR2 memory. It is not backwards compatible with the Socket 940.

5. AM2+: The Socket AM2+ was released in 2007. It has 940 pins and is a pin grid array. The AM2+ boasts faster communication and betterpower management. The Socket AM2+ is backwards compatible with the Socket AM2. Likewise, there are AM2 processors that can fit ontoan AM2+ motherboard. Interchanging the processors and motherboards generally requires a BIOS upgrade.

6. AM3: AMD socket AM3 is a PGA ZIF socket that has 941 pins. AM3 replaced its predecessors, AM2 and AM2+ in 2009. AM3 supportedDDR3 RAM for faster more reliable speeds.

7. AM3+: Socket AM3+, used with AMD processors, is the next socket type, following AM3. It has 942 pins arranged in a PGA-ZIF package.AM3+ has 1 more pin than AM3, which has 941 pins. The socket is backwards compatible, meaning that users could upgrade theirmotherboard to AM3+, but still be able to use their AM3 processor.

8. AMD: (Advanced Micro Devices) AMDs processors fit certain types of CPU sockets, with the most modern ones being the AMD 3 and AMD3+ socket. The AMD Socket 940 is a 940 pin Pin Grid Array type socket. (so it was mainly designed for 64 bit server computers), and hassupport for DDR RAM

9. AMD 940: The AMD Socket 940 is a 940-pin Pin Grid Array type socket which is Zero Insertion Force (that means that the pins for thesocket are on the CPU and not the socket, and the CPU requires zero force to be inserted into the socket, it just locks in). This socket isdeveloped by AMD and released in 2003. This socket was used for the AMD Opteron and the AMD Athlon 64 FX (so it was mainly designedfor 64 bit server computers), and has support for DDR RAM

10. ATX: Intel created this motherboard in 1995, and it has since became popular and standardized. Several updates have been made, includingthe change from a 20 pin power connector to a 24 pin power connector. This motherboard is relatively large, so it is mainly used indesktops. Because of its size, the ATX has spaces to upgrade.

11. BIOS: Basic Input Output System, BIOS is software stored on a motherboard chip that preforms functions such as keyboard commands andstarting the computer. Helps cpu interact with devises and helps with start up.

12. Blue-Ray: A more advanced and modern optical format than the commonly used CD or DVD. Blu-ray disks allow for much larger storage,where each side can hold 25GB of data. This optical format can be used to start up your computer and install an operating system.

13. BNC: Bayonet Neill-Concelman- this is used for high end video mostly comercial use. It is sent thought RGB and then Vertical andHorizontal sync.

14. CD-ROM, CD-RW: -Compact disk read only memory (700mg)- Compact disk rewritable (4.7gb, 8.5gb double layer)

15. Chipset: The chipset is found on the motherboard. This handles the flow of information from things such as the CPU and memory. Thenorthbridge handles memory between the CPU and memory cards, while the southbridge connects to other things such as USB or ethernet.

16. Clock Speed: How much data is passing through each second or each turn of the cycle. The expansion bus has its own clock, so it does notneed to run at the same speed as the rest of the CPU

17. CMOS: Complementary metal-oxide-semiconductor is a on board chip that is powered by its own battery. System time and date is kept bythe CMOS. The battery also keeps the BIOS powered. The CMOS chip keeps inventory of the all the hardware and the BIOS gathers inventory info from the CMOS. It also keeps the system time.

18. CNR: Comunications and Networking Riser- pacifically for modems and network connections. They were used so that a full PCI slot didn'thave to be taken up. The CNR has been phased out in recent years because now those functionalities are embedded within the motherboarditself.

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19. Compact Flash: Compact flash o SD o Micro-SD o Mini-SD o xD o SSD

20. CPU: A central processing unit (CPU) is the hardware within a computer that carries out the instructions of a computer program byperforming the basic arithmetical, logical, and input/output operations of the system.

21. Crimper: Attaches connectors to cables.22. CRT: Cathode Ray Tube- XGA/1024x768, SXGA/1280x1024, UXGA/1600x1200

This uses an electron gun to make images.23. DDR: Double Data Rate (DDR)

A very common RAM that has been upgraded throughout the years. It first started out as DDRAM, the name was given because it wasdouble the speed of SDRAM. Multiplying the Memory Bus Clock Rate by 16 will you give you the maximum amount of bytes you can transfer.So a bus clock rate of 100Mhz will give you 1600Mb/s peak data rate

24. DDR2: Double Data Rate 2 (DDR2) SDRAMDDR2 was the next generation of DDR memory. It featured an enhanced electrical interface, buffers, and off-chip drivers. It is twice as fastas DDR memory. The peak data rate is 3200 MB/s.

25. DDR3: Double Data Rate 3 (DDR3) SDRAMDDR3 is the latest generation of DDR memory. It has twice the data rate of DDR2 and it has larger chip capacities. It's peak data rate is6400 MB/s.

26. Digital Projecters: Lots of light so it gets very hot and the fan needs to cool downs properly.27. DIMM: Dual inline memory module

This is the most modern type of memory module . The "dual" means that there are copper contacts on both the front and back of the moduleare separate. Also, the 64 bit data width, as opposed to 16 or 32 bits, allowed for more data to be transmitted in each clock cycle than before

28. Display Port: VESA standard which is a royalty free channel. The data is sent in packets like ethernet and PCIe it is also compatible withHDMI and DVI

29. DVD-ROM, DVD-RW: -Digital video disk read only memory-Digital video disk rewritable

30. DVI: Digital Visual Interface. Single Link- 3.7 Gbps (HDTV at 60fps)Dual Link- 7.4 Gbps ( HDTV at 85fps)DVI-A= analog DVI-D= digitalDVI-I= both

31. Dynamic RAM: Most common used random access memory. Data is moved to the RAM from the hard drive, then it is used by the CPU.32. ECC: Error Correcting Code

This type of memory, used in important contexts (such as a website server), constantly checks and corrects itself. ECC memory appears thesame as non-ECC memory on the outside.

33. eSATA: A standard of SATA developed to plug external storage devices into your computer. SATA and eSATA cables are notinterchangeable, however: you can't use the same cable both inside and outside of the computer.

34. Ethernet: IEEE 802.3 or Ethernet is a LAN cable that works with networking.35. F: A LGA type socket, featuring 1,207 pins. This socket fit in the same generation as the AMD 2 socket. This socket was designed for servers

as it had a faster Front Side Bus (FSB), and DDR2 memory.36. Firewire: "Firewire", otherwise know as IEEE 1394 is an external storage device connector. You can use IEEE 1394 to connect up to 63

different devices, through daisy-chaining, tree topology or a P2P network. The first version of IEEE 1394 was Alpha Mode. It ran at 100,200/400 Mbit/s. The second version was IEEE 1394 Beta Mode. Its speeds were 800 Mbit/s.

37. FMI: This is a 905 pin socket that was introduced in 2011. This type of socket allowed for processors with higher performance and use ofDDR3 memory. It also allowed for the movement of the PCI express controller onto the CPU itself.

38. HDMI: High Definition Multimedia Interface- Video and audio stream all digital39. Hemostat clamps: Replaces tweezers for inserting and removing jumper blocks and cables40. Hex driver: hexagon shaped screwdriver mostly used on cases and motherboards

41. Hot swappable drives: This devices do not require the computer to be powered off and back on to be switched out.42. IDE: Integrated Drive Electronics created by western digital. It became the standard for PATA (standard connection for hard drives)43. ITX: Created in 2012, ITX is smaller in size than it's "bigger brother" ATX. ITX form is used in smaller sized desktop computers. ITX boards

have limited expansions slots and memory slots, but they are relatively similar to ATX in terms of power and onboard features. ITX hasdifferent types of board layouts, each getting gradually smaller in size. They are Mini-ITX, Nano-ITX, Pico-ITX and Micro-ITX.

44. LCD: Liquid Crystal Display- A back light is always on and it can depolarize a light to make a color.45. LED: The backlight uses and LED to backlight it. They are ether on the edges or in an array on the back. It has more contrast46. LGA 775: The Intel LGA 775, or Socket T, is a CPU socket used around 2004. As an LGA socket, it has pins on the motherboard instead of

the CPU. It had 775 pins as the name implies, and was used in some of the later Pentium 4 and Intel Core 2 Duos, as well as some Xeon andsome Celeron chips. Socket T stands for Tejas core, a chip that was eventually canceled by Intel, but is a name still used to refer to thissocket.

47. LGA 1155: Land Grid Array Socket for CPU, replacement for 1156 but not compatible with 1156 CPUs. Released in 2011 for intel SandyBridge and Ivy Bridge microCPUs.

48. LGA 1156: The Intel LGA 1156, or Socket H1, was a replacement for the LGA 775 like the LGA 1366. Similar to both, the LGA 1156 had thepins on the motherboard instead of the CPU, and has 1,156 pins as the name implies. Released in 2009, this socket allowed for theNorthbridge to be integrated into the CPU for faster response times, as well as better efficiency when accessing memory.

49. LGA 1366: Similar to the Intel LGA 775, the LGA 1366 is a Land Grid Array socket with the pins on the board instead of the CPU, and had1,366 pins as the name implies. This socket was also referred to as the Socket B, and was used around 2008. One of the first Intel Core i7sused the LGA 1366 as its motherboard interface.

50. Loopback Plug: Checks for correct input/output from USB, serial, parallel and network cables.51. Lumens: 3,000 lumen work in dim room

6,000 lumen work in mid light room52. Micro-ATX: Smaller than the standard ATX with less expansion slots53. Micro-SD: ...54. mini PCI: Created primarily for mobile use at is is much smaller but still using the same standard of the PCI format. It can be used in

laptops to include features like WiFi, mobile broadband, and many more functions. The downfall to these adapters cards is that they areinserted into the laptop and are hard to access after installed.

55. Mini-SD: ...56. MiniDin-6: Low res and sent over two channels no audio57. Native Resolution: LCD displays have a set number of pixels58. Northbridge: Also known as "memory controller hub" Connects the CPU to memory and high-speed graphics card59. OLEM: Fast response time, Made from organic compounds, Wider viewing angle, Power efficient, Low cost60. Optical Format: It is a common type of storage media on devices. Things like CDs, DVDs, and Blu-rays discs all use these small bumps

on the disk that are then read by small lasers beams. The lasers read the bumps and know what type of data is encoded on the device.61. Parity Memory: A type of memory that checks itself. Its memory that has another parity bit on the module which constantly checks out the

communication in and out of that one memory module. If something gets through that it doesn't recognize then it will flag a message andstop all communications so the error doesn't expand itself to the rest of the system.

62. PATA cable: Big ribben cable that sends in parallel63. PCI: This is an expansion slot that allows additional cards. For example a video card can be connected to a PCI slot.64. PCI-X: An updated version of the PCI, stands for PCI-eXtended. Was designed for servers that needed more bandwidth. It offers four times

the clock speed in order to handle higher network and storage. This is not to be confused with PCI-e(PCI-express).65. PCIe: The PCI Express, or PCIe (Not to be confused for PCI-X) is a new PCI standard which is used on most modern PCs. Instead of using

the standard 32-bit or 64-bt busses, the PCIe uses a unidirectional serial system Each port has it's own full-duplex lane, which allows aPCIe card to send data back and fourth between it and the North Bridge. PCIe cards come in x1, x2, x4, x16, and x32 lanes ("x" means by inthis case, so "x32" reads as "by 32"). So far, there are four known versions, each improving the throughput of the last. There is PCIe v1.x,which is 250 MB/s throughput, PCIe v2.x, which is 500 MB/s, PCIe v3.0, which is fairly new and uncommon and transfers at 1 GB/s, andPCIe v4.0, which is still to be released transfers at 2 GB/s throughput.

66. Penlight: Illuminates dark cases67. Philips and Straight-Blade Screwdriver: Philips is the plus shaped screwdriver and Straight-Blade is the minus shaped screw driver.

68. Plasma Display: This has tinny cells holding a noble gas and mercury and it hits a phosphor which creates and image. This allows forvery deep black and high response times. But it uses a lot of plasma and radio interference.

69. Punch Down Tool: Used for installing UTP (ethernet) cables into a wall jack.70. RAID: -Redundant Array of Independent (sometimes "inexpensive") Disks

-Not all RAID has redundancy-Can be software (lower performance)/hardware

RAID 0 - Striping (improves performance through parallelism of read and write operations)RAID 1- Mirroring (comprises mirroring (without parity or striping). Data is written identically to two (or more) drives,)RAID 5 - Striping with Parity (comprises block-level striping with distributed parity)RAID 10 (RAID 1+0/ Nested RAID) - Stripe of Mirrors

71. RAMBUS: Rambus Inc. , partnered with intel, created the RDRAM which was a much faster memory. Not all systems used this memorybecause of how expensive it was, so new types of memory were created after this.

72. RCA: Used for audio and video, It is commonly used for composite video( yellow cable) . It can also send Component video (rgb coloredcables)

73. Refresh Rate: Measured in Hz. How fast it can fill the screen in a second. When it drops below 72Hz you can see flickering in CRTs but itcan be fine if you have 60Hz on a LCD.

74. RJ: RJ 45- This is the same standard as ethernet can it is a lot more modern then RJ11.RJ 11- This is used for phone line connections and it is smaller than the RJ 45.

75. SATA: (Serial ATA) A computer bus that connects components on a motherboard. Uses two individual connections between points, one ineach direction for communication with each direction traveling at its own speed. Replaced PATA

76. SATA cable: Cirial connection that is a lot smaller77. SD: (Secure Digital) It is a type of memory card used for storing data in devices. The card is one of the smaller memory card formats. To give

the cards some orientation, the top-rght corner of each SD card is slanted. Even though the cards are extremely small, as of late 2004, theycan hold up to 8GB of data

78. SDRAM: Synchronous Dynamic Random Access Memory, is a kind of DRAM that is synchronized with the system clock. This kind ofmemory isn't commonly found on modern systems, where you'll more commonly see DDR type memory. SDRAM is labeled with the samespeed as the memory clock bus. For example, if the clock runs at 133MHz, then the SDRAM would be marked PC133.

79. Serial: Data travels one after another.80. SO-DIMM: This is the Small Outline Dual In-Line Memory Module that was made for use in mobile devices like laptops. The point of this

version of ram was to make the original desktop ram package smaller to fit into a mobile device. They are 68mm x 32mm and come in 72pin, 100 pin, 144 pin, 200 pin, and 204 pin variations. There are also variations to accommodate to a motherboards needs, so differenttypes of modules are made for DDR, DDR2, and DDR3.

81. Southbridge: Manages connections (I/O Controller Hub - USB, ATA, SATA, Ethernet) and it is slower than the Northbridg.82. SSD: The Solid State Drive is the counter-part to the Hard Drive, unlike the Hard Drive the Solid State Drive (or SSD) has no moving parts

and is entirely memory. This makes the SSD much faster then it's counter-part Hard Drive, although it is currently much more expensivethan the Hard Drive so it is not feasible for mass consumers currently.

83. Toner Probes: Used to determine the patch panel port that matches a particular network wall socket.84. Torx driver: star-shaped screwdriver which is used on compact models.85. USB: Universal Serial Bus, has been around since 1997, and has many different connectors. These include USB Type-A, Type-B, Micro-B,

and Mini-B. Micro-B. USB 1.1-1.5 to 10 megabits USB 2.0- 480 megabits USB 3.0- 4.8 gigabits

86. VGA: Video Graphics Array- DE-15 connector and always colored blue. It outputs in analog signal.87. xD: ...88. Zero Insertion Force: that means that the pins for the socket are on the CPU and not the socket, and the CPU requires zero force to be

inserted into the socket, it just locks in.

A+ Cert Chapter 1 Misc