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1. ADI GUNTUR MAULANA (
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2. DIAN PUSPITA FITRI
( 11 )
3. INDRA SETIAWAN (
19 )
4. JAWIDA LAILIYAH (
20 )
MEMORIadalahareadalamCPUPLCtempatdatasertaprogram
disimpandandieksekusiolehprosesor.Pengetahuantentang
sistemmemoripadaPLCiniakansangatmembantudalam
memahamicarakerjaPLC.
Secaraumum,memoridapatdibagimenjadi2kategori:volatile
dannonvolatile
MemorivolatileakanhilangjikacatudayaPNCmatisedangkan
nonvolatilememoriyaitudatayang tersimpandidalamnya tidak
akanhilangwalaupuncatudayaPLCmati
RAM(RandomAccessMemory)berfungsimenyimpan
masukkanberupadatadanperintahyangbersifat
sementaraketikakomputerdijalankan.
DatapadaRAMbersifatvolatileyangartinyadataakan
hilangapabilakomputerdimatikanatauapabilaterjadi
pemadamanlistrik.
Sifatdarimemoriiniadalahsebagaiberikut:
a. Temporerartinyadatayangterdapatdalam
komputerakanhilangapabilakomputerdimatikan.
b. Randomartinyadalmmembacadatadilakukan
secaraacak.
• ROM(Read Only Memory)digunakan untuk
menyimpan data secara tetap.
• Memory ini mempunyai sifat antara lain
sebagai berikut:
a) Statis artinya dapat dibaca tetapi tidak bisa
diubah maupun ditambah.
b) Permanen mempunyai arti data dalam
ROM tidak bisa hilang walaupun komputer
dimatikan.
Kegunaan CPU adalah sebagai
berikut :
1) Memberikan address data
dan program.
2) Memasukkan dan mengambil
data.
3) Melaksanakan instruksi-
instruksi secara berurutan.
4) Merupakan penghubung
antara main storage dan
input/output device.
BagianutamayangterdapatpadaCPU,antaralain sebagai
berikut:
1) Aritmathic LogicalUnit(ALU)
2) Control Unit
Dapatdikatakantugasdaricontrol unit antara lainsebagai
berikut:
a) Mengatur danmangendalikan alat-alatoutputdan
input.
b) Mengambil instruksi-instruksi danmemori utama.
c) Mengambil datadarimemori utamauntukproses.
d) Mengirim instruksi keALUapabilaadaperhitungan
aritmatikaatauperbandinganlogikaserta mengawasi
kerjaALU.
e) Menyimpanhasil proseskememori.
Tugas CPU , yaitu :
1) Mengontrol kerja
sistem.
2) Merupakan otak
komputer.
3) Menentukan saat
kapan pengiriman
data terjadi.
4) Melakukan operasi
aritmatika.
TUGAS PAK TAUFIK.pptx

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TUGAS PAK TAUFIK.pptx