You'll probabl only see this item when playing with the hardmod recipe set, in which case you'll need it to etch [circuit boards](circuitBoard.md) to craft [printed circuit boards](printedCircuitBoard.md).

Used for crafting most things pushing numbers, such as [CPUs](cpu1.md) and [graphics cards](gpu1.md).

At the risk of repeating myself: it's a button sink. Because the button economy has seen some serious inflation in recent years.

Because you *always* have too many buttons lying around somewhere. Don't lie. We all shift-click that button recipe time and again.

Common crafting material for most, if not all card components in OpenComputers.

Microchips are the bread and butter of electronic component crafting. They come in different tiers, for the different tier of devices they're used to craft with.

Intermediary crafting item made from [raw circuit boards](rawCircuitBoard.md) and used to make [printed circuit boards](printedCircuitBoard.md).

Higher tier crafting material used in more advanced circuitry, such as [CPUs](cpu1.md).

You'll usually only encounter this when playing with the hard mode recipe set. In that case, this is used for crafting [raw circuit boards](rawCircuitBoard.md). Very inefficiently.

Basic crafting component used in crafting storage media such as [floppies](floppy.md) and [hard drives](hdd1.md).

The interweb is a basic component for all things related to long distance communication. It uses the strange mechanics of all things End to allow something along the lines of quantum communication. Used most notably in [internet cards](internetCard.md) and [linked cards](linkedCard.md).

The numpad is part of every [keyboard](../block/keyboard.md). I allows you to enter numbers. I'm seriously running out of ideas of what to write here...

The printed circuit board is, next to the [transistor](transistor.md), one of the most basic crafting materials in OpenComputers. It is used as a basis for many components, such as [cards](card.md) and a large number of [blocks](../block/index.md).

Intermediary crafting material, used for crafting [circuit boards](circuitBoard.md) (or [printed circuit boards](printedCircuitBoard.md), depending on the recipe set you use).

The transistor is one of the most basic crafting ingredients in OpenComputers. It is mainly used to craft [microchips](chip1.md) and other electronic goodies.

import scala.collection.mutable

import scala.io.Source

class Manual extends GuiScreen {

final val documentMaxWidth = 230

final val documentMaxHeight = 176

final val scrollPosX = 244

final val scrollPosY = 6

final val scrollWidth = 6

final val scrollHeight = 180

var guiLeft = 0

var guiTop = 0

var xSize = 0

var ySize = 0

var isDragging = false

var document = Iterable.empty[PseudoMarkdown.Segment]

var documentHeight = 0

var hoveredLink = None: Option[String]

protected var scrollButton: ImageButton = _

private def canScroll = maxOffset > 0

def maxOffset = documentHeight - documentMaxHeight

def add[T](list: util.List[T], value: Any) = list.add(value.asInstanceOf[T])

def loadPage(path: String, localized: Boolean = false, seen: List[String] = List.empty): Iterator[String] = {

val language = FMLCommonHandler.instance.getCurrentLanguage

if (seen.contains(resolvedPath)) return Iterator("Redirection loop: ") ++ seen.iterator ++ Iterator(path)

val location = new ResourceLocation(Settings.resourceDomain, resolvedPath)

var is: InputStream = null

}

catch {

case e: FileNotFoundException if !localized && language != "en_US" =>

case t: Throwable =>

Iterator(s"Failed loading page '$path':") ++ t.toString.lines

}

}

def refreshPage(): Unit = {

documentHeight = PseudoMarkdown.height(document, documentMaxWidth, fontRendererObj)

scrollTo(offset)

}

def pushPage(path: String): Unit = {

refreshPage()

}

}

def popPage(): Unit = {

refreshPage()

}

else {

private def scrollDown() = scrollTo(offset + PseudoMarkdown.lineHeight(fontRendererObj) * 3)

private def scrollTo(row: Int): Unit = {

val yMin = guiTop + scrollPosY

if (maxOffset > 0) {

scrollButton.yPosition = yMin + (scrollHeight - 13) * offset / maxOffset

class Manual(val parent: Delegator) extends Delegate {

override def onItemRightClick(stack: ItemStack, world: World, player: EntityPlayer): ItemStack = {

if (world.isRemote) {

player.openGui(OpenComputers, GuiType.Manual.id, world, 0, 0, 0)

}

super.onItemRightClick(stack, world, player)

player.openGui(OpenComputers, GuiType.Manual.id, world, 0, 0, 0)

Minecraft.getMinecraft.currentScreen match {

case manual: gui.Manual =>

val descriptor = api.Items.get(new ItemStack(block))

manual.pushPage("block/" + descriptor.name + ".md")

case _ =>