- Instalasi listrik yang baik akan memberikan keamanan dan kenyamanan bagi pengguna komputer. gunakan kabel power komputer yang bagus dan tahan terhadap panas. hindari penggunaan sumber power bersama-sama dengan peralatan elektronik lainnya. hindari penggunaan kabel gulung karena biasanya tidak tahan terhadap panas dan menyebabkan terjadinya korsleiting atau kebakaran.
- Stabilizer berfungsi untuk menstabilkan tegangan listrik yang masuk ke power supply komputer. biasanya dalam stabilizer terdapat sekering. jika tegangan yang masuk tiba-tiba mengalami kenaikan daya yang berlebihan, sekering stabilizer akan putus sehingga komputer tetap terlindungi.
- Uninterruptible power supply (UPS) sebagai cadangan tenaga listrik (berfungsi sebagai baterai) jika tiba-tiba padam listrik. untuk satu unit personal komputer (PC), kita dapat menggunakan UPS portable yang dapat menyimpan tenaga listrik sekitar 3 sampai 5 jam sehingga kita dapat melanjutkan pekerjaan meskipun listrik padam.
- Air conditioner (AC) sebagai pendingin ruangan, tetapi alat ini sangat bermanfaat untuk mengurangi panas dalam komputer. AC terutama bermanfaat dalam laboratorium komputer atau sebuah ruang kantor yang di dalamnya terdapat beberapa unit komputer. dengan AC, komponen elektronik yang terdapat di dalam komputer akan tetap terjaga dengan aman, yaitu tidak mengalamai panas yang berlebihan.
PERALATAN PENDUKUNG KOMPUTER
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Perangkat Pendukung Komputer
Berikut beberapa nama dan fungsi perangkat pendukung komputer meliputi perangkat input, output, asesoris dan perangkat tambahan lainnya.
1. MONITOR, Adalah salah satu jenis soft-copy device, karena keluarannya adalah berupa sinyal elektronik, dalam hal ini berupa gambar yang tampil di layar monitor
2. MOUSE
Salah satu alat interaksi input di komputer.
3. KEYBOARD
Papan ketik perintah masukan sebagai alat interaksi dengan komputer
4. PRINTER
Alat Cetak, baik berupa text, gambar dan lainya yang dicetak di media kertas, kain atau media lainnya
5. CD/DVD ROM
Media input untuk memutar/membaca kaset CD/DVD
6. SCANNER
Alat yang berkerja dengan memindahkan sebuah atau beberapa objek yang terdapat di atas lensa scanner ke dalam memory penyimpanan komputer
the kingdom of majapahit
Majapahit was a vast thalassocratic archipelagic empire based on the island of Java (modern-day Indonesia) from 1293 to around 1500. Majapahit reached its peak of glory during the era of Hayam Wuruk, whose reign from 1350 to 1389 marked by conquest which extended through Southeast Asia. His achievement is also credited to his prime minister, Gajah Mada. According to the Nagarakretagama (Desawarñana) written in 1365, Majapahit was an empire of 98 tributaries, stretching from Sumatra to New Guinea;[3] consisting of present day Indonesia, Singapore, Malaysia,Brunei, southern Thailand, the Philippines, and East Timor, although the true nature of Majapahit sphere of influence is still the subject of studies among historians.
United Kingdom Battlecruiser HMS Hood
HMS Hood (pennant number 51) was the last battlecruiser built for the Royal Navy. One of four Admiral-class battlecruisers ordered in mid-1916, her design—although drastically revised after the Battle of Jutland and improved while she was under construction—still had serious limitations. For this reason she was the only ship of her class to be completed. She was named after the 18th-century Admiral Samuel Hood.
Hood was involved in a number of flag-waving exercises between her commissioning in 1920 and the outbreak of war in 1939; these included training exercises in the Mediterranean Sea and a circumnavigation of the globe with the Special Service Squadron in 1923 and 1924. She was attached to the Mediterranean Fleet following the outbreak of the Second Italo-Abyssinian War.
Japanese battleship Yamato
yamato (大和), named after the ancient Japanese Yamato Province, was the lead ship of the Yamato class of battleships that served with theImperial Japanese Navy during World War II. She and her sister ship, Musashi, were the heaviest and most powerfully armed battleships ever constructed,[8] displacing 72,800 tonnes at full load and armed with nine 46 cm (18.1 inch) main guns. Neither, however, survived the war.
Laid down in 1937 and formally commissioned a week after the Pearl Harbor attack in late 1941, Yamato was designed to counter the numerically superior battleship fleet of the United States, Japan's main rival in the Pacific. Throughout 1942 she served as the flagship of theJapanese Combined Fleet, and in June 1942 Admiral Isoroku Yamamoto directed the fleet from her bridge during the disastrous Battle of Midway. Musashi took over as the Combined Fleet flagship in early 1943, and Yamato spent the rest of the year, and much of 1944, moving between the major Japanese naval bases of Truk and Kure in response to American threats. Although she was present at the Battle of the Philippine Sea in June 1944, Yamato played no part in the battle. The only time she fired her main guns at enemy surface targets was in October 1944, when she was sent to engage American forces invading the Philippines during the Battle of Leyte Gulf. On the verge of success the Japanese force turned back, believing they were engaging an entire US carrier fleet rather than the light escort carrier group that was all that stood between Yamato and the vulnerable troop transports.
During 1944 the balance of naval power in the Pacific decisively turned against Japan and, by early 1945, the Japanese fleet was much depleted and critically short of fuel stocks in the home islands, limiting its usefulness. In April 1945, in a desperate attempt to slow the Allied advance,Yamato was dispatched on a one way voyage to Okinawa, where it was intended that she should protect the island from invasion and fight until destroyed. Her task force was spotted south of Kyushu by US submarines and aircraft, and on 7 April she was sunk by American carrier based bombers and torpedo bombers with the loss of most of her crew.
German battleship Bismarck
Bismarck was the first of two Bismarck-class battleships built for the German Kriegsmarine during World War II. Named after Chancellor Otto von Bismarck, the primary force behind the German unification in 1871, the ship was laid down at the Blohm & Voss shipyard in Hamburg in July 1936 and launched nearly three years later in April 1939. Work was completed in August 1940, when she was commissioned into the German fleet. Along with her sister ship Tirpitz, Bismarck was the largest battleship ever built by Germany, and the heaviest built by any
European power.
F-22 Raptor
F-22 Raptor adalah pesawat tempur siluman buatan Amerika Serikat. Pesawat ini awalnya direncanakan untuk dijadikan pesawat tempur superioritas udara untuk digunakan menghadapi pesawat tempur Uni Soviet, tetapi pesawat ini juga dilengkapi peralatan untuk serangan darat, peperangan elektronik, dan sinyal intelijen. Pesawat ini melalui masa pengembangan yang panjang, versi prototipnya diberi nama YF-22, tiga tahun sebelum secara resmi dipakai diberi nama F/A-22, dan akhirnya diberi nama F-22A ketika resmi mulai dipakai pada Desember 2005.Lockheed Martin Aeronautics adalah kontraktor utama yang bertanggungjawab memproduksi sebagian besar badan pesawat, persenjataan, dan perakitan F-22. Kemudian mitranya, Boeing Integrated Defense Systems memproduksi sayap, peralatan avionik, dan pelatihan pilot dan perawatan.
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