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GẮN KẾT
Những tính năng cơ bản của Palm
Khai niem PDA (Personal Digital Assistant) da denvoi nguoi su dung viet nam co le ro rang nhat lavao thoi diem 2001-2002 voi nhung thiet bi Palm, PocketPC su dung man hinh mau. Diem gay chu y nhat doi voi nhung nguoi dung yeu thich cong nghedo la man hinh cam ung (touch screen) va kha nang mo rong phan mem, dong bo hoa (synchronize) voi may PC. Mac du den thoi diem hien nay, theo nhieu danh gia chuyen mon, HDH Windows Mobile cua Microsoft dang ngay cang chiem uu the (va MS cung vua moi tung ra HDH Mobile 2005), thi cac thiet bi dung Palm van co nhung uu diem rat manh (nhu bai viet "He dieu hanh Palm, nen hay khong") nhu tinh don gian, de su dung, kha nang dung pin, hoat dong tot o bo toc do xu li khong cao, nhu con
Sony Clie NX73V/U su dung chip Intel Xcale 200 Mhz ma van chay nhanh trong khi hau het PPC hien gio deu dung 400Mhz tro len.
Noi rieng ve HDH Palm ma chung ta dang su dung, lam sao de tan dung, kham pha het nhung tinh nang cua Palm. Truoc tien la giao dien nguoi dung (User Interface). Hau het chung ta deu biet den Zlauncher voi kha nang to chuc (Organize) kha manh me, dong thoi co the lap di mot khuyet diem ve giao dien cua HDH Palm, do la hinh ne (Background Image), ma co le viec tao mot backpics doc dao cho moi nguoi khong kho may. Voi Zlauncher khi moi cai dat vao thi co cac ban se thay no hoi tho vi qua nhieu bieu tuong noi. De chuong trinh trong trang nha hon, cac ban co the lam trong suot top & bottom bar nhung cac nut van khong thay doi: Menu / Options / ZL Preperence, cac ban vao tab "Top/ Bottom bar roi vao Pattern chinh muc do trong suot (Transparent) khoang 50%. Khi chon hinh nen, voi cac hinh co nhieu mau cac ban nen tang do trang, hay co the lam toi de nhin ro chu, con
neu muon giu nguyen hinh goc thi nen chon hinh don gian, khong co
cac mau tuong phan qua manh gay kho doc chu.
Ke den la kha nang PDA va ung dung van phong. Cac ung dung mac dinh nhu Address, Memo van dang du dung, vi chung giao tiep rat tot voi cac dien thoai Nokia.... Su dung Agendus co the gop chung tat ca nhung thong tin ca nhan nay thanh mot nhung viec su dung cac phim bam nhanh de chay cac chuong trinh Address, Memo,.. doi luc lai nhanh va tien loi (hon la phai dung but bat den tung phan trong Agendus). De bao thuc cac ban co the dung WAClock mac dinh trong may hoac phan mem Worldmate kha noi tieng, tuy nhien minh khuyen cac ban su dung PalmaryClock. Chuong trinh co giao dien rat dep nay hien thi gio chinh xac, cai dat bao thuc (theo kieu gai gio hoac dem nguoc) bang midi, wav, mp3 (nhung phai co Pocket Tunes hay Aero Player doi voi mp3). Ngoai ra cung co xem gio the gioi nhu WorldMate. Con soan van ban, neu nhu cac ban thuong xuyen phai lam viec voi cac file word, excel thi moi nen cai Document to go, con neu chi la file text don gian thi nen dung Tealdoc. Chuong trinh chay nhanh dap ung du cac yeu cau ve soan van ban. Mot ung dung khong the thieu la tu dien cua anh Ho Ngoc Duc, version moi nay minh chay rat tot chu dau co truc trac gi dau (may hom truoc thay co nhieu bai noi ve van de nay), dung la tu dien nay can phai cai tren Ram nhung ma phan TDDT.prc van co the cai tren the nho, vay la tiet kiem duoc 200KB. Ngoai ra, cac ban muon su dung chuong trinh ve do thi cho Toan thi minh gioi thieu PGraph, ve rat tot cac ham sin, cos, tan, ln, log, ....
Ve viec dung IR de lam dieu khien tu xa thi da co bai viet nhieu ve Novii Remote, minh chi muon viet them ve chuong trinh mac dinh cua cac may Clie. Clie RMC cua Sony khi cac ban tao thet bi moi, chac chan nhieu khi khong thay nha san xuat minh can tim, tuy nhien, mot so code cua hang nay lai co the hoat dong voi san pham hang khac. Vi du ban muon tao remote cho TV LG, thi chi can chon Akai trong danh sach la duoc. Viec su dung IR tren may Palm cung chi thich hop cho viec dong bo address thoi, chu gui file 1-2MB tro len la chet ngac ngu, day la mot thiet thoi cho cac may khong co bluetooth (ai co giai phap ve van de nay thi post len nhe).
Hien nay Java da ho tro may ao cho Palm, tuy nhien toc do thuc khi cai dat Java tren may Palm thuc su van con cham. Khong biet cac may khac thi sao chu minh chay thu mot tro choi Java don gian ma no cu chay i ach, mot so file Java lai khong cai duoc, noi chung van chua hoan thien lam. Tuy nhien, Java van la mot giai phap tot cho nhung ung dung Java khong can toc do xu li cao. Phan mem ban do cho may Palm cua anh Mai Khoi la mot vi du (Nhung chac chan phan mem nay se hay hon neu anh Khoi viet chuong trinh *.prc thuc). Cac ban muon quan tam den van de nay thi len trang chu cua Java tham khao. Chu y de su dung may ao cho Palm thi PC cua cac ban phai co ho tro Java de chinh file *.jad sang *.prc.
Chuc nang giai tri (Multimedia) la mot phan khong the thieu cua cac thiet bi di dong hien nay. Pocket Tunes va Aero Player van luon la hai lua chon tot nhat cho nhac so. Aero Player duoc danh gia cao hon ve chat luong khi nghe MP3, nhung Pocket Tunes van la lua chon thich hop hon nho kha nang ho tro dinh dang WMA (cac may palm su dung palm 5.0 nhu clie NX,NR,.. can download them update MCA). HDH Palm khong mac dinh ho tro dinh dang *.WMA, tuy nhien day cung la li do ha gia thanh cua Palm, trong khi do PPC them vao Windows Media Player Mobile Edition kem theo he dieu hanh. Can biet rang mot bai WMA dung luong 1 megabytes co chat luong tuong xung voi 1 bai MP3 dung luong 3-4 megabytes, nhu vay khi su dung PTunes thi voi 128MB cac ban luu duoc khoang 6h nhac, trong khi voi MP3 chi la 2h. Doi voi video, neu cac ban su dung SonyClie thi tot nhat la chuyen
sang dinh dang *.MQV nho chuong trinh Image Converter di kem voi cac may Clie, luu phim chat luong trung binh thi 5 phut phim khoang 10MB. Tuy rang Image Converter kha ken file, tuy nhien cac ban van co the su dung cac chuong trinh chuyen doi khac de dua ve dinh dang *.mpeg hay *.mov roi su dung Image Converter chuyen sang the nho. Voi cac file video kho chuyen, cac ban dung Windows Movie Converter de chuyen sang dang *.WMV, roi sau do dung chuong trinh khac chuyen sang *.mpeg, xong moi chuyen sang the nho, vi Windows Movie Maker nhan duoc nhieu dinh dang. Nghe hoi thu cong, nhung neu may tinh cua ban nhanh va neu co dieu kien thoi gian thi nhu vay co the tiet kiem dung luong. Tuy nhien, nhu nhieu bai viet trong forum da post, viet xem video dai khong thiet thuc lam. Ngoai ra, de xem anh, cac ban nen su dung chuong trinh cua hang khac, nhu Resco Viewer, vi trinh xem anh cua Palm kha cham.
Kha nang Camera, Video Record cua Palm, hay noi chung tren moi thiet bi di dong nhu dien thoai, PPC,... cho du da co nhieu model dat do phan giai 1.3 megapixels (Clie NX80), hay tham chi 2 megapixels (Clie NZ90), thi chat luong hinh chup cho ra van khong the nhu may anh duoc. Hinh chup van bi nhoe, hat, va nhung cho tuong phan cao thi mau chua thuc lam. Tuy nhien, neu dung cac chuong trinh chinh sua anh thi co the cai thien doi chut. Tot nhat la dung camera o noi co dieu kien anh sang day du nhu ngoai troi (nhat la nhung may dung bo cam bien CMOS). CCD thi nhay sang hon nhung chup ngoai troi lai khong dep bang CMOS. Ngoai ra, cac model Sony cung co the su dung camera nhu webcam, minh da post bai ve van de nay roi. Nhung co le chi thich hop de su dung cho nhung doan webcam ngan thoi, boi bo tien ra mua Palm ve lam Webcam thi hoi phi that.
Tu khi Sony tuyen bo ngung san xuat cac thiet bi PDA thi theo minh chua co model nao co kieu dang that su gay chu y nhu cac model Clie. Thiet ke nap gap cua cac model NX,NZ,UX vua doc dao, vua bao ve mau hinh cam ung. Hay thiet ke nho gon, hien dai cua Treo. Hien gio HP cung cho ra vai model co thiet ke kieu giong nhu Treo (ban phim ngay duoi man hinh) nhung khong dep bang vi HP su dung man hinh dai nen nhin khong can doi. Cac ung dung giai tri cua Palm cung chang kem gi PPC. Cac game dien hinh cho Palm la cac game dung stylus nhieu, nho do co the tieo noi cac game dung chuot o PC, nhu Bejewel, Crazy Daisy, Dynomite, Rocket Mania, Mummy, Seawar (game ban tau), Tradewind, Warfare, Zuma, hay Fish Tycoon,... , cac game nay de dang tim thay tren cac website; hoac la cac game doi hoi xu li do hoa nhu GTS Racing, HellFire, Zap2000-2016, Volley Balley (game bong chuyen kha vui).
Palm thuc su la mot thiet bi ho tro rat tot cho chung ta. Cac bac doc qua, cho y kien dum. Ban nao can cac phan mem da neu trong bai thi PM cho minh.
Khai niem PDA (Personal Digital Assistant) da denvoi nguoi su dung viet nam co le ro rang nhat lavao thoi diem 2001-2002 voi nhung thiet bi Palm, PocketPC su dung man hinh mau. Diem gay chu y nhat doi voi nhung nguoi dung yeu thich cong nghedo la man hinh cam ung (touch screen) va kha nang mo rong phan mem, dong bo hoa (synchronize) voi may PC. Mac du den thoi diem hien nay, theo nhieu danh gia chuyen mon, HDH Windows Mobile cua Microsoft dang ngay cang chiem uu the (va MS cung vua moi tung ra HDH Mobile 2005), thi cac thiet bi dung Palm van co nhung uu diem rat manh (nhu bai viet "He dieu hanh Palm, nen hay khong") nhu tinh don gian, de su dung, kha nang dung pin, hoat dong tot o bo toc do xu li khong cao, nhu con
Sony Clie NX73V/U su dung chip Intel Xcale 200 Mhz ma van chay nhanh trong khi hau het PPC hien gio deu dung 400Mhz tro len.
Noi rieng ve HDH Palm ma chung ta dang su dung, lam sao de tan dung, kham pha het nhung tinh nang cua Palm. Truoc tien la giao dien nguoi dung (User Interface). Hau het chung ta deu biet den Zlauncher voi kha nang to chuc (Organize) kha manh me, dong thoi co the lap di mot khuyet diem ve giao dien cua HDH Palm, do la hinh ne (Background Image), ma co le viec tao mot backpics doc dao cho moi nguoi khong kho may. Voi Zlauncher khi moi cai dat vao thi co cac ban se thay no hoi tho vi qua nhieu bieu tuong noi. De chuong trinh trong trang nha hon, cac ban co the lam trong suot top & bottom bar nhung cac nut van khong thay doi: Menu / Options / ZL Preperence, cac ban vao tab "Top/ Bottom bar roi vao Pattern chinh muc do trong suot (Transparent) khoang 50%. Khi chon hinh nen, voi cac hinh co nhieu mau cac ban nen tang do trang, hay co the lam toi de nhin ro chu, con
neu muon giu nguyen hinh goc thi nen chon hinh don gian, khong co
cac mau tuong phan qua manh gay kho doc chu.
Ke den la kha nang PDA va ung dung van phong. Cac ung dung mac dinh nhu Address, Memo van dang du dung, vi chung giao tiep rat tot voi cac dien thoai Nokia.... Su dung Agendus co the gop chung tat ca nhung thong tin ca nhan nay thanh mot nhung viec su dung cac phim bam nhanh de chay cac chuong trinh Address, Memo,.. doi luc lai nhanh va tien loi (hon la phai dung but bat den tung phan trong Agendus). De bao thuc cac ban co the dung WAClock mac dinh trong may hoac phan mem Worldmate kha noi tieng, tuy nhien minh khuyen cac ban su dung PalmaryClock. Chuong trinh co giao dien rat dep nay hien thi gio chinh xac, cai dat bao thuc (theo kieu gai gio hoac dem nguoc) bang midi, wav, mp3 (nhung phai co Pocket Tunes hay Aero Player doi voi mp3). Ngoai ra cung co xem gio the gioi nhu WorldMate. Con soan van ban, neu nhu cac ban thuong xuyen phai lam viec voi cac file word, excel thi moi nen cai Document to go, con neu chi la file text don gian thi nen dung Tealdoc. Chuong trinh chay nhanh dap ung du cac yeu cau ve soan van ban. Mot ung dung khong the thieu la tu dien cua anh Ho Ngoc Duc, version moi nay minh chay rat tot chu dau co truc trac gi dau (may hom truoc thay co nhieu bai noi ve van de nay), dung la tu dien nay can phai cai tren Ram nhung ma phan TDDT.prc van co the cai tren the nho, vay la tiet kiem duoc 200KB. Ngoai ra, cac ban muon su dung chuong trinh ve do thi cho Toan thi minh gioi thieu PGraph, ve rat tot cac ham sin, cos, tan, ln, log, ....
Ve viec dung IR de lam dieu khien tu xa thi da co bai viet nhieu ve Novii Remote, minh chi muon viet them ve chuong trinh mac dinh cua cac may Clie. Clie RMC cua Sony khi cac ban tao thet bi moi, chac chan nhieu khi khong thay nha san xuat minh can tim, tuy nhien, mot so code cua hang nay lai co the hoat dong voi san pham hang khac. Vi du ban muon tao remote cho TV LG, thi chi can chon Akai trong danh sach la duoc. Viec su dung IR tren may Palm cung chi thich hop cho viec dong bo address thoi, chu gui file 1-2MB tro len la chet ngac ngu, day la mot thiet thoi cho cac may khong co bluetooth (ai co giai phap ve van de nay thi post len nhe).
Hien nay Java da ho tro may ao cho Palm, tuy nhien toc do thuc khi cai dat Java tren may Palm thuc su van con cham. Khong biet cac may khac thi sao chu minh chay thu mot tro choi Java don gian ma no cu chay i ach, mot so file Java lai khong cai duoc, noi chung van chua hoan thien lam. Tuy nhien, Java van la mot giai phap tot cho nhung ung dung Java khong can toc do xu li cao. Phan mem ban do cho may Palm cua anh Mai Khoi la mot vi du (Nhung chac chan phan mem nay se hay hon neu anh Khoi viet chuong trinh *.prc thuc). Cac ban muon quan tam den van de nay thi len trang chu cua Java tham khao. Chu y de su dung may ao cho Palm thi PC cua cac ban phai co ho tro Java de chinh file *.jad sang *.prc.
Chuc nang giai tri (Multimedia) la mot phan khong the thieu cua cac thiet bi di dong hien nay. Pocket Tunes va Aero Player van luon la hai lua chon tot nhat cho nhac so. Aero Player duoc danh gia cao hon ve chat luong khi nghe MP3, nhung Pocket Tunes van la lua chon thich hop hon nho kha nang ho tro dinh dang WMA (cac may palm su dung palm 5.0 nhu clie NX,NR,.. can download them update MCA). HDH Palm khong mac dinh ho tro dinh dang *.WMA, tuy nhien day cung la li do ha gia thanh cua Palm, trong khi do PPC them vao Windows Media Player Mobile Edition kem theo he dieu hanh. Can biet rang mot bai WMA dung luong 1 megabytes co chat luong tuong xung voi 1 bai MP3 dung luong 3-4 megabytes, nhu vay khi su dung PTunes thi voi 128MB cac ban luu duoc khoang 6h nhac, trong khi voi MP3 chi la 2h. Doi voi video, neu cac ban su dung SonyClie thi tot nhat la chuyen
sang dinh dang *.MQV nho chuong trinh Image Converter di kem voi cac may Clie, luu phim chat luong trung binh thi 5 phut phim khoang 10MB. Tuy rang Image Converter kha ken file, tuy nhien cac ban van co the su dung cac chuong trinh chuyen doi khac de dua ve dinh dang *.mpeg hay *.mov roi su dung Image Converter chuyen sang the nho. Voi cac file video kho chuyen, cac ban dung Windows Movie Converter de chuyen sang dang *.WMV, roi sau do dung chuong trinh khac chuyen sang *.mpeg, xong moi chuyen sang the nho, vi Windows Movie Maker nhan duoc nhieu dinh dang. Nghe hoi thu cong, nhung neu may tinh cua ban nhanh va neu co dieu kien thoi gian thi nhu vay co the tiet kiem dung luong. Tuy nhien, nhu nhieu bai viet trong forum da post, viet xem video dai khong thiet thuc lam. Ngoai ra, de xem anh, cac ban nen su dung chuong trinh cua hang khac, nhu Resco Viewer, vi trinh xem anh cua Palm kha cham.
Kha nang Camera, Video Record cua Palm, hay noi chung tren moi thiet bi di dong nhu dien thoai, PPC,... cho du da co nhieu model dat do phan giai 1.3 megapixels (Clie NX80), hay tham chi 2 megapixels (Clie NZ90), thi chat luong hinh chup cho ra van khong the nhu may anh duoc. Hinh chup van bi nhoe, hat, va nhung cho tuong phan cao thi mau chua thuc lam. Tuy nhien, neu dung cac chuong trinh chinh sua anh thi co the cai thien doi chut. Tot nhat la dung camera o noi co dieu kien anh sang day du nhu ngoai troi (nhat la nhung may dung bo cam bien CMOS). CCD thi nhay sang hon nhung chup ngoai troi lai khong dep bang CMOS. Ngoai ra, cac model Sony cung co the su dung camera nhu webcam, minh da post bai ve van de nay roi. Nhung co le chi thich hop de su dung cho nhung doan webcam ngan thoi, boi bo tien ra mua Palm ve lam Webcam thi hoi phi that.
Tu khi Sony tuyen bo ngung san xuat cac thiet bi PDA thi theo minh chua co model nao co kieu dang that su gay chu y nhu cac model Clie. Thiet ke nap gap cua cac model NX,NZ,UX vua doc dao, vua bao ve mau hinh cam ung. Hay thiet ke nho gon, hien dai cua Treo. Hien gio HP cung cho ra vai model co thiet ke kieu giong nhu Treo (ban phim ngay duoi man hinh) nhung khong dep bang vi HP su dung man hinh dai nen nhin khong can doi. Cac ung dung giai tri cua Palm cung chang kem gi PPC. Cac game dien hinh cho Palm la cac game dung stylus nhieu, nho do co the tieo noi cac game dung chuot o PC, nhu Bejewel, Crazy Daisy, Dynomite, Rocket Mania, Mummy, Seawar (game ban tau), Tradewind, Warfare, Zuma, hay Fish Tycoon,... , cac game nay de dang tim thay tren cac website; hoac la cac game doi hoi xu li do hoa nhu GTS Racing, HellFire, Zap2000-2016, Volley Balley (game bong chuyen kha vui).
Palm thuc su la mot thiet bi ho tro rat tot cho chung ta. Cac bac doc qua, cho y kien dum. Ban nao can cac phan mem da neu trong bai thi PM cho minh.
