Kamis, 19 April 2012

PERTEMUAN 1 : Sistem Digital
1. Apa yang dimaksud dengan Sistem Digital ?
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2. Apa perbedaan sistem analog dan digital ?
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3. Bagaimanakah bentuk gelombang pada sistem analog dan digital ?
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4. Sebutkan kelebihan sistem analog !
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5. Sebutkan kelebihan sistem digital !
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6. Apa yang dimaksud dengan rangkaian digital ?
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7. Apakah yang dimaksud dengan IC ?
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8. Apakah yang dimaksud dengan serpih ?
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9. Menurut jumlah gerbang atau elemen ekivalennya yang disebut famili (keluarga),
serpih IC dapat dibagi menjadi beberapa kelompok apa saja, sebutkan pula jumlah
gerbang masing-masing kelompok !
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10. Ada 2 kategori transistor, sebutkan. Sebutkan pula transistor-transistor yang
termasuk kategori mereka !
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PERTEMUAN 2 : Sistem Bilangan
1.Sebutkan sistem bilangan yang digunakan secara luas dalam komputer !
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2.Apa yang disebut dengan basis dalam system bilangan ?
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3.Bagaimana cara menuliskan basis suatu system bilangan ?
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4.Apa yang dimaksud dengan komplemen ?
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5.Apa perbedaan komplemen 1 dengan komplemen 2 ?
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6.Dapat digunakan untuk apakah komplemen 2 ?
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7.Apa yang dimaksud dengan MSB dan LSB ? Berikan contohnya !
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8.Apa perbedaan byte, nibble, dan word ?
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9.Ada berapa nibble pada bilangan 1001 0000 0100 0011 ?
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10. Berapakah 9CH dalam bilangan desimal ?
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PERTEMUAN 3 : Gerbang Logika
1. Apa yang dimaksud dengan gerbang logika ?
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2. Berapa jumlah sinyal masukan dan keluaran yang dapat dimiliki oleh suatu
gerbang?.....................................................................................................................
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3. Bila tujuh inverter dirangkai secara seri, maka rangkaian itu akan bertindak
sebagai inverter atau non inverter ? Mengapa ?
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4. Apa yang dimaksud dengan table kebenaran ?
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5. Gambarkan gerbang logika OR dan AND. Buat table kebenarannya masingmasing
!
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6. Sebuah gerbang nand Mempunyai 4 masukan. Berapa jumlah kata masukan yang
terdapat pada table logikanya ? Kata manakah yang menghasilkan keluaran 0 ?
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7. Bagaimanakah keluaran yang mungkin untuk persamaan y = (a+b) · c.
Gambarkan rangkaian logikanya !
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8. Persamaan ĀBC + ABC merupakan bentuk ekspresi logika apa ? Dapatkah
persamaan ini disederhanakan ? Bila ya bagaimana hasil penyederhanaannya ?
Hukum aljabar Boole mana yang anda gunakan ?
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9. Gambarkan rangkaian logika dari teori De Morgan !
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10. Bagaimanakah persamaan untuk rangkaian logika berikut (Variabel masukan
keluaran anda boleh tentukan sendiri) ? Gambarkan rangkaian ekivalennya !
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PERTEMUAN 4 : Metode Peta Karnaugh
1. Apa fungsi peta Karnaugh ?
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2. Bagaimana rumus untuk menentukan jumlah kotak pada peta Karnaugh ?
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3. Berapa Kotak digambarkan pada peta Karnaugh bila jumlah masukannya 5 ?
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4. Berapa jumlah variabel masukan bila Kotak pada Peta Karnaugh 64 ?
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5. Buatlah Peta Karnaugh untuk 4 variabel masukan !
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6. Buatlah Peta Karnaugh untuk persamaan ĀBC + ABC !
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7. Gambarkan Rangkaian dari persamaan pada soal di atas sebelum dan sesudah
disederhanakan !
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8. Berapakan jumlah variable masukan pada peta Karnaugh berikut ? Isilah masing –
masing sel dengan bilangan biner dan desimalnya !
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AB AB AB AB
_
C
C
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….. ….. ….. …..
….. ….. ….. …..
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Perhatikan gambar berikut unutk menjawab soal nomor 9 dan 10.
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AB AB AB AB
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CD
_
CD
CD
_
CD
9. Bagaimana persamaan dari peta Karnaugh di atas ini ?
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10. Bagaimana persamaan dari peta Karnaugh di atas ini setelah disederhanakan ?
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1 1
1 1
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PERTEMUAN 5 : Pengkodean
1. Berapakah desimal 23 bila dikonversi ke BCD 8421 ?
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2. Apa kepanjangan ASCII ?
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3. Berapakah biner 1001 bila dikonversi ke Ekses-3 ?
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4. Berapakah Ekses-3 1001 bila dikonversi ke biner ?
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5. Mengapa sandi ASCII disebut alfanumerik ?
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6. Bagaimanakah Kode ASCII untuk angka 7 ?
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7. Apakah Kode ASCII untuk B dan b sama ?
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8. Sandi kelabu tidak sesuai untuk operasi aritmatik. Mengapa ? Untuk apakah sandi
kelabu biasa digunakan ?
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9. Berapakah ekses-3 1001 bila dikonversi ke sandi kelabu ?
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10. Berapakah sandi kelabu 1001 bila dikonversi ke biner ?
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PERTEMUAN 6 : Aritmetika Biner
1. Apa yang dimaksud dengan Full adder ?
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2. Apa yang dimaksud dengan half subtractor ?
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3. Apa yang dimaksud dengan Full subtractor ?
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4. Berapa jumlah Half adder dan Full adder pada rangkaian adder 8 bit ?
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5. Berapa jumlah Half subtractor dan Full subtractor pada rangkaian subtractor 4 bit
?
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6. Bagaimana persamaan untuk full adder ?
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7. Bagaimana persamaan dari rangkaian borrow dan difference pada rangkaian
subtractor ?
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8. Berapakah hasil penjumlahan biner 1011 + 0011 ?
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9. Berapakah hasil pengurangan biner 1000 – 0011 ?
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10. Dapatkah kita membuat rangkaian penjumlah sekaligus pengurang ? Bagaimana
caranya ?
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PERTEMUAN 9 : Rangkaian Kombinasional
1. Apa yang dimaksud dengan rangkaian kombinasional ?
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2. Sebutkan rangkaian yang termasuk ke dalam rangkaian kombinasional !
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3. Apa fungsi rangkaian multiplekser ?
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4. Bagaimana persamaan rangkaian mux 3 to 1 ?
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5. Apa fungsi rangkaian Decoder ?
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6. Apa fungsi rangkaian Encoder ?
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Perhatikan gambar berikut untuk menjawab soal
B
A
S
7. Gambar di atas merupakan rangkaian multiplekser 2 to 1, apa artinya ?
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8. Jika S diberi masukan 0 bagaimanakah keluaran dari multiplekser tersebut ?
Mengapa demikian ?
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9. Bagaimanakah masukan S jika keluaran dari multiplekser tersebut B ? Mengapa
demikian ?
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10. Gambar di bawah ini merupakan rangkaian Octal to Binary Encoder. Buatlah
table kebenarannya !
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D7 D6 D5 D4 D3 D2 D1 D0
x
y
z
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PERTEMUAN 10 : Rangkaian Sekuensial
1. Mengapa flip flop disebut Multivibrator bistabil ?
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2. Berapakah jumlah flip flop yang dibutuhkan untuk membuat rangkaian memori
yang dapat menyimpan data sebesar 4 bit? Mengapa ?
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R
S
Q
_Q
3. Gambar di atas merupakan RS nand flip flop. Buat tabel kebenarannya !
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4. Apa fungsi clock pada flipflop ?
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5. Apa perbedaan flipflop sinkron dan asinkron ?
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6. Dari jenis flipflop apa dapat dibuat flipflop D ?
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7. Apa yang dimaksud dengan kondisi toggle pada flipflop ?
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8. Peraga tujuh segmen ini mempunyai 2 tipe. Apa saja dan apa perbedaannya ?
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9. Bagaimana pola operasi flipflop dengan pemicuan master-slave ?
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10. Tentukan sisi apa yang di tunjuk oleh gambar berikut ?
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PERTEMUAN 11 : Register
1. Apa yang dimaksud dengan register ?
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2. Apa fungsi shift register ?
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3. Flipflop jenis apa yang dipakai dalam shift register ?
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4. Apa perbedaan 2 macam pengisian data yang terdapat pada register geser ?
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5. Berdasarkan pemuatannya, terdapat 4 kategori register geser , sebutkan !
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6. Berapa pulsa detak yang dibutuhkan untuk menyimpan kata 4 bit pada sebuat
register dengan pengisian seri dan paralel ?
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Perhatikan gambar berikut untuk menjawab soal nomor 7 s.d. 10
Q3 D3 Q0 D0 Q1 D1 Q2 D2
7. Gambar di atas adalah rangkaian register geser. Kemanakah arah pergeserannya ?
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8. Pemicuan apa yang dipakai dalam rangkaian register di atas ?
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9. Register di atas termasuk sinkron atau asinkron ? mengapa ?
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10. Gambarkan diagram waktu untuk rangkaian register di atas !
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PERTEMUAN 12 : Pencacah
1. Apakah antara lain fungsi dan manfaat pencacah ?
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2. Apa yang dimaksud dengan up counter dan down counter ?
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3. Apa yang disebut dengan modulus dalam pencacah ?
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4. Gambarkan rangkaian pencacah modulus-6 !
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Perhatikan gambar berikut untuk menjawab soal nomor 5 s.d. 9
Q3 J3
Q3 K3
Q0 J0
Q0 K0
Q1 J1
Q1 K1
Q2 J2
Q2 K2
High
CLR
5. Di atas adalah gambar pencacah riak. Apa fungsi CLR pada pencacah tersebut ?
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6. Pencacah di atas termasuk sinkron atau asinkron ? mengapa ?
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7. Flipflop jenis apa yang digunakan pada pencacah tersebut ?
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8. Bagaimanakah masukan J dan K pada pencacah tersebut ?
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9. Berapa angka yang dapat dicacah oleh rangkaian di atas (mulai angka berapa
sampai berapa dalam desimal dan biner) ?
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10. Bilamana rangkaian berikut berfungsi sebagai up counter dan bilamana down
counter ?
Q3 J
Q3 K
Q0 J
Q0 K
Q1 J
Q1 K
Q2 J
Q2 K
CLR
High
CLK
Q2 Q2 Q1 Q1 Q0 Q0
ATAS
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input
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PERTEMUAN 13 : Konverter
1. Apa fungsi rangkaian konverter A/D ?
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2. Apa fungsi rangkaian konverter D/A ?
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3. Sebutkan dua bagian utama dalam konverter D/A !
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4. Sebutkan bagian-bagian utama dalam konverter D/A !
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5. Apa yang dilakukan oleh rangkaian komparator ?
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6. Bagaimanakah persamaan dari rangkaian komparator ?
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Perhatikan gambar berikut untuk menjawab soal nomor 7 s.d 10
An
Bn
Dn
En
Cn
7. Terdiri dari gerbang apa sajakah rangkaian di atas ?
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8. Apa yang terjadi jika E = 0 dan E = 1 ?
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9. Apa yang terjadi jika C = AB ?........................................................................
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10. Apa yang terjadi jika D = AB
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PERTEMUAN 14 : Memori dan prosesor
1. Apa perbedaan ROM dan RAM ?
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2. ROM dapat dibuat dengan teknologi apa saja ?
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3. Bagaimana data disimpan pada memori semikonduktor ?
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4. Jelaskan tentang memori inti magnetik !
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5. Berdasarkan pada teknik penyimpanan yang digunakan, RAM dapat
dikelompokkan ke dalam dua kategori utama , sebutkan dan jelaskan !
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6. Sebutkan macam-macam ROM!
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7. Apa keuntungan dan kerugian RAM non volatile ?
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8. Apa yang disebut dengan ALU pada prosesor ?
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9. Apa yang fungsi akumulator dalam sebuah prosesor ?
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10. Pada Prosesor terdapat Pencacah. Apakah fungsinya ?
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